CX2520SB KSS | Alldatasheet
Document overview
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- PDF pages: 27
Technical content
Features
- Crystalunitforaudio-visual,officeequipment
- Ultra-miniatureandlowprofile(2.5x2.0x0.45mm)
- Ceramicpackage
- Aleadfreeproduct
- Reflowcompatible
Applications
- DigitalElectronics
- Audio-Visual,OfficeEquipment PbFree Specifications Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 13560to60000 Fundamental 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX2520SB 27000 D0 P E S ZZ Code Freq.(kHz) Code Freq.(kHz) 13560 16000 18000 20000 24000 26000 27000 27120 13560.000 16000.000 18000.000 20000.000 24000.000 26000.000 27000.000 27120.000 30000 32000 33000 33333 40000 48000 54000 30000.000 32000.000 33000.000 33333.000 40000.000 48000.000 54000.000 8pF 5010-6 10°Cto70°C 5010-6 P E S ZZ CustomSpecification Table1 Motional Series Resistances Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 2.50.1 1.0 0.75 2.00.1 0.450.10.650.7 CONNECTION (TOPVIEW) NC HOT HOT GND #4 #3 #1 #2 #4 #3 #1 #2 #1 #2 #4 #3 1.0 1.2 1.20.5 1.0 0.3 Table2 Level of Drive Frequency Range Motional Series Resistance Units ohm 300 150 100 13560 to 15999kHz 16000 to 19999kHz 20000 to 39999kHz 40000 to 60000kHz Frequency Range Level of Drive Units 13560 to 60000kHz 10(100max.) W Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range *Pleaseinqurieaboutspecificationsotherthantheabove. RoHSCompliant Crystal Units Surface Mount Type CX2520SB (CX-2520SB) 2.5×2.0mm for Audio & Visual, Office Equipment - 34 -
- Referencefrequency fortelecommunicationsystems
- Reflowcompatible
- Usingceramicpackageresulting inhighreliability
- Smallandlowprofile
- MobileCommunications,Bluetooth, WirelessLAN PbFree Specifications Table1 Motional Series Resistances Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 2.50.1 1.0 0.75 2.00.1 0.450.10.650.7 CONNECTION (TOPVIEW) NC HOT HOT GND #4 #3 #1 #2 #1 #2 #4 #3 1.0 1.2 1.20.5 1.0 0.3 Table2 Level of Drive #4 #3 #1 #2 Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 13560to60000 Fundamental 10 15 Table1 Table2 30to85 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX2520SB 32000 D0 F L J ZZ 8pF 1010-6 30°Cto85°C 1510-6 F L J ZZ CustomSpecification Code Freq.(kHz) Code Freq.(kHz) 13560 16000 18000 19200 24000 26000 13560.000 16000.000 18000.000 19200.000 24000.000 26000.000 27120 32000 38400 40000 44000 27120.000 32000.000 38400.000 40000.000 44000.000 Frequency Range Motional Series Resistance Units ohm 300 150 100 13560 to 15999kHz 16000 to 19999kHz 20000 to 39999kHz 40000 to 60000kHz Frequency Range Level of Drive Units 13560 to 60000kHz 10(100max.) W Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range *Pleaseinqurieaboutspecificationsotherthantheabove. RoHSCompliant 2.5×2.0mm for Mobile Communications, SRWI Crystal Units Surface Mount Type CX2520SB (CX-2520SB) - 35 -
- Crystalunitforaudio-visual,officeequipment
- Miniatureandlowprofile(3.2x2.5x0.55mm)
- Ceramicpackage
- Aleadfreeproduct
- Reflowcompatible
- DigitalElectronics
- Audio-Visual,OfficeEquipment Specifications Table1 Motional Series Resistances Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) Table2 Level of Drive 1.05 3.6 1.3 1.3 1.05 1.85 3.20.1 2.50.1 0.550.05 0.75 1.2 1.0 CONNECTION (TOPVIEW) GND HOT HOT GND 4-R0.2 #4 #3 #1 #2 #1 #2 #4 #3 1.0 1.0 #4 #3 #1 #2 Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 12000to54000 Fundamental 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX3225SB 24000 D0 P E S ZZ Code Freq.(kHz) Code Freq.(kHz) 12000 13560 14318 14745 16000 18432 20000 22579 24000 24576 12000.000 13560.000 14318.180 14745.600 16000.000 18432.000 20000.000 22579.000 24000.000 24576.000 25000 26000 27000 27120 30000 33000 33333 40000 48000 54000 25000.000 26000.000 27000.000 27120.000 30000.000 33000.000 33333.000 40000.000 48000.000 54000.000 8pF 5010-6 10°Cto70°C 5010-6 P E S ZZ CustomSpecification Frequency Range Motional Series Resistance Units ohm 300 200 100 12000 to 13999kHz 14000 to 15999kHz 16000 to 26999kHz 27000 to 54000kHz Frequency Range Level of Drive Units 12000 to 54000kHz 10(100max.) W Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range *Pleaseinqurieaboutspecificationsotherthantheabove. PbFree RoHSCompliant Crystal Units Surface Mount Type CX3225SB (CX-101F) 3.2×2.5mm for Audio & Visual, Office Equipment - 36 -
- Referencefrequency fortelecommunicationsystems
- Reflowcompatible
- Usingceramicpackageresulting inhighreliability
- Smallandlowprofile
- MobileCommunications,Bluetooth, WirelessLAN Specifications Table1 Motional Series Resistances Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) Table2 Level of Drive 1.05 3.6 1.3 1.3 1.05 1.85 3.20.1 2.50.1 0.550.05 0.75 1.2 1.0 CONNECTION (TOPVIEW) GND HOT HOT GND 4-R0.2 #4 #3 #1 #2 #1 #2 #4 #3 #4 #3 #1 #2 1.0 1.0 Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 12000to54000 Fundamental 10 15 Table1 Table2 30to85 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX3225SB 26000 D0 F L J ZZ 8pF 1010-6 30°Cto85°C 1510-6 F L J ZZ CustomSpecification Code Freq.(kHz) Code Freq.(kHz) 12000 13000 13560 16000 19200 12000.000 13000.000 13560.000 16000.000 19200.000 20000 26000 32000 38400 40000 20000.000 26000.000 32000.000 38400.000 40000.000 Frequency Range Motional Series Resistance Units ohm 300 200 100 12000 to 13999kHz 14000 to 15999kHz 16000 to 26999kHz 27000 to 54000kHz Frequency Range Level of Drive Units 12000 to 54000kHz 10(100max.) W Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range *Pleaseinqurieaboutspecificationsotherthantheabove. PbFree RoHSCompliant 3.2×2.5mm for Mobile Communications, SRWI Crystal Units Surface Mount Type CX3225SB (CX-101F) - 37 -
*Pleaseinqurieaboutspecificationsotherthantheabove. PbFree RoHSCompliant
- Referencefrequency fortelecommunicationsystems
- Reflowcompatible
- Usingceramicpackageresulting inhighreliability
- Smallandlowprofile
- MobileCommunications,Bluetooth, WirelessLAN Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 0.45 2.75 3.0 1.151.15 1.6 1.4 1.4 GNDneedstobe connectedtothecase. 4.00.2 0.750.1 2.50.2 4-R0.2 0.7 1.0 0.9 1.0 CONNECTION (TOPVIEW) GND HOT HOT GND #4 #3 #1 #2 Specifications Table1 Motional Series Resistances Table2 Level of Drive Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 12000to40000 Fundamental 10 15 Table1 Table2 30to85 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX4025SB 26000 F0 F L J ZZ Code Freq.(kHz) Code Freq.(kHz) 12000 13000 16000 20000 12000.000 13000.000 16000.000 20000.000 26000 32000 40000 26000.000 32000.000 40000.000 10pF 1010-6 30°Cto85°C 1510-6 F L J ZZ CustomSpecification Frequency Range Motional Series Resistance Units ohm 12000 to 19999kHz 20000 to 40000kHz Frequency Range Level of Drive Units 12000 to 40000kHz 10(100max.) W Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range 4.0×2.5mm for Mobile Communications, SRWI Crystal Units Surface Mount Type CX4025SB (CX-4025S) - 38 -
- Referencefrequency fortelecommunicationsystems
- Reflowcompatible
- Usingceramicpackageresulting inhighreliability
- Smallandlowprofile
- MobileCommunications,Bluetooth, WirelessLAN Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) Terminals2and4needtobe connectedtothecase. 7.0 1.0 4.2 2.1 4.55 2.45 2.45 2.6 4.90.1 3.10.1 CONNECTION (TOPVIEW) 0.70.1 1.3 2.3 1.3 0.9 4-R0.2 GND HOT HOT GND #4 #3 #4 #3 #1 #2 #1 #2 #4 #3 #1 #2 Specifications How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX5032SB 26000 F0 F L J ZZ Code Freq.(kHz) Code Freq.(kHz) 12000 12800 13000 14400 16000 12000.000 12800.000 13000.000 14400.000 16000.000 19200 26000 32000 40000 48000 19200.000 26000.000 32000.000 40000.000 48000.000 10pF 1010-6 30°Cto85°C 1510-6 F L J ZZ CustomSpecification Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 9843.75to49999 Fundamental 10 15 Table1 Table2 30to85 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range 50to120(MHz) 3rdOvertone *Pleaseinqurieaboutspecificationsotherthantheabove. Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units 9843.75 to 49999kHz 50 to 120(MHz)(3rdO.T) 10(100max.) 10(100max.) Table1 Motional Series Resistances Table2 Level of Drive Frequency Range Motional Series Resistance Units ohm 150 9843.75 to 9999kHz 10000 to 11999kHz 12000 to 25999kHz 26000 to 49999kHz 50 to 120(MHz) 5.0×3.2mm for Mobile Communications, SRWI Crystal Units Surface Mount Type CX5032SB (CX-96F) - 39 -
- Crystalunitforaudio-visual,officeequipment
- Smallandlowprofile(5.0x3.2x1.0mm)
- Ceramicpackage
- Productwithleadfreeterminations
- Reflowcompatible
- DigitalElectronics
- Audio-Visual,OfficeEquipment Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 2.4 4.1 1.91.9 CONNECTION 5.00.2 2.4 1.3 3.20.22.0 1.0 0.1 0.2 1.3 Specifications Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 9843.75to54000 Fundamental 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX5032GB 48000 H0 P E S ZZ Code Freq.(kHz) Code Freq.(kHz) 10000 12000 14318 14745 16934 18432 22579 10000.000 12000.000 14318.180 14745.600 16934.400 18432.000 22579.200 24000 24545 24576 27000 36000 48000 54000 24000.000 24545.450 24576.000 27000.000 36000.000 48000.000 54000.000 12pF 5010-6 10°Cto70°C 5010-6 P E S ZZ CustomSpecification Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units 9843.75 to 15999kHz 16000 to 24999kHz 25000 to 54000kHz 10(500max.) 10(300max.) 10(100max.) Frequency Range Motional Series Resistance Units ohm 9843.75 to 11999kHz 12000 to 13999kHz 14000 to 29999kHz 30000 to 54000kHz 200 150 100 Table1 Motional Series Resistances *Pleaseinqurieaboutspecificationsotherthantheabove. Table2 Level of Drive RoHSCompliant 5.0×3.2mm for Audio & Visual, Office Equipment Crystal Units Surface Mount Type CX5032GB (CX-53F) - 40 -
- Crystalunitforaudio-visual,officeequipment
- Smallandlowprofile(8.0x4.5x1.8mm)
- Ceramicpackage
- Productwithleadfreeterminations
- Reflowcompatible
- Audio-Visual,OfficeEquipment Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 2.0 8.00.3 1.80.2 4.50.3 1.5 1.55.0 CONNECTION 6.6 2.8 2.4 2.4 How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies CX8045GB 30000 H0 P E S ZZ Code Freq.(kHz) Code Freq.(kHz) 24576 27000 28636 30000 32000 36000 40000 24576.000 27000.000 28636.000 30000.000 32000.000 36000.000 40000.000 Specifications Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 7200to48000 Fundamental 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. 14318 16000 16384 16934 19660 20000 21477 24000 14318.180 16000.000 16384.000 16934.400 19660.800 20000.000 21477.720 24000.000 12pF 5010-6 10°Cto70°C 5010-6 P E S ZZ CustomSpecification Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Table1 Motional Series Resistances Table2 Level of Drive Frequency Range Motional Series Resistance Units ohm 7200 to 9999kHz 10000 to 11999kHz 12000 to 48000kHz 200 150 Frequency Range Level of Drive Units 7200 to 9999kHz 16000 to 24999kHz 25000 to 48000kHz 10(500max.) 10(300max.) 10(100max.) *Pleaseinqurieaboutspecificationsotherthantheabove. RoHSCompliant 8.0×4.5mm for Audio & Visual, Office Equipment Crystal Units Surface Mount Type CX8045GB (CX-8045G) - 41 -
- Crystalunitforaudio-visual,officeequipment
- Smallandlowprofile(11.8x5.5x1.8mm)
- Ceramicpackage
- Productwithleadfreeterminations
- Reflowcompatible
- DigitalElectronics
- Audio-Visual,OfficeEquipment Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 7.7 5.0 2.5 4.0 6.52.7 11.80.3 5.50.3 1.80.2 7.0 CONNECTION 2.0 2.5 1.5 Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Frequency Range Level of Drive Units 3500 to 15999kHz 16000 to 28999kHz 29 to 60MHz 10(500max.) 10(300max.) 10(300max.) Frequency Range Motional Series Resistance Units ohm 3500 to 3999kHz 4000 to 7999kHz 8000 to 11999kHz 12000 to 28999kHz 29 to 60MHz 300 200 120 100 150 Specifications How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXB855GB 03579 H0 P E S ZZ Code Freq.(kHz) Code Freq.(kHz) 03579 03686 04000 06000 08000 12000 3579.545 3686.400 4000.000 6000.000 8000.000 12000.000 14318 16000 16934 19660 20000 14318.180 16000.000 16934.400 19660.800 20000.000 12pF 5010-6 10°Cto70°C 5010-6 P E S ZZ CustomSpecification Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 3500to28999 Fundamental 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range 29to60(MHz) 3rdOvertone Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range RoHSCompliant 11.8×5.5mm for Audio & Visual, Office Equipment Crystal Units Surface Mount Type CXB855GB (CX-5FD) - 42 -
- Crystalunitforaudio-visual,officeequipment
- Metalpackage,leadedtype
- Aresistanceweldhermeticsealedtype
- Suitableforhighdensityassembly andmassproduction
- DigitalElectronics
- Audio-Visual,OfficeEquipment Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Frequency Range Motional Series Resistance Units ohm 3200 to 3499kHz 3500 to 4099kHz 4100 to 4799kHz 4800 to 5999kHz 6000 to 11999kHz 12000 to 13499kHz 13500 to 33999kHz 30 to 60MHz 300 150 120 100 150 Frequency Range Level of Drive Units 3200 to 15999kHz 16000 to 24999kHz 25000 to 33999kHz 30 to 60MHz 10(500max.) 10(300max.) 10(100max.) 10(300max.) (Unit:mm) PbFree 3.8max. 5.0max.3.5max. 11.0max. 10.3max. 201 0.430.05 4.880.2 Recommended Land Pattern Specifications Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 3200to33999,30to60(MHz) Fundamental,3rdOvertone 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXH49SFB 03579 H0 P E S ZZ Code Freq.(kHz) Code Freq.(kHz) 03200 03579 03686 04000 04194 04332 04433 04500 04915 06000 06144 07200 07372 08000 10000 10240 10738 3200.000 3579.545 3686.400 4000.000 4194.304 4332.000 4433.619 4500.000 4915.200 6000.000 6144.000 7200.000 7372.800 8000.000 10000.000 10240.000 10738.635 11000 11059 12000 12288 13500 14318 16000 16934 17280 17734 20000 21477 24000 24576 25000 27000 11000.000 11059.200 12000.000 12288.000 13500.000 14318.180 16000.000 16934.400 17280.000 17734.476 20000.000 21477.270 24000.000 24576.000 25000.000 27000.000 12pF 5010-6 10°C to70°C 5010-6 P E S ZZ CustomSpecification Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range RoHSCompliant for Audio & Visual, Office Equipment Crystal Units Leaded Type CXH49SFB (HC-49/U-S) - 43 -
- Crystalunitforaudio-visual,officeequipment
- Metalpackage,leadedtype
- Aresistanceweldhermeticsealedtype
- Suitableforhighdensityassembly andmassproduction
- DigitalElectronics
- Audio-Visual,OfficeEquipment Table1 Motional Series Resistances Table2 Level of Drive Specifications How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXZ49GFB 03579 H0 P E S ZZ 12pF 5010-6 10°C to70°C 5010-6 P E S ZZ CustomSpecification Code Freq.(kHz) Code Freq.(kHz) 03200 03579 03686 04000 04194 04332 04433 04500 04915 06000 06144 07200 07372 08000 10000 10240 10738 3200.000 3579.545 3686.400 4000.000 4194.304 4332.000 4433.619 4500.000 4915.200 6000.000 6144.000 7200.000 7372.800 8000.000 10000.000 10240.000 10738.635 11000 11059 12000 12288 13500 14318 16000 16934 17280 17734 20000 21477 24000 24576 25000 27000 11000.000 11059.200 12000.000 12288.000 13500.000 14318.180 16000.000 16934.400 17280.000 17734.476 20000.000 21477.270 24000.000 24576.000 25000.000 27000.000 f_nom OT f_tol f_tem DL CL T_use T_stg 3200to33999,30to60(MHz) Fundamental,3rdOvertone 50 50 Table1 Table2 10to70 40to85 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range Recommended Land Pattern *Pleaseinqurieaboutspecificationsotherthantheabove. Frequency Range Motional Series Resistance Units ohm 3200 to 3499kHz 3500 to 4099kHz 4100 to 4799kHz 4800 to 5999kHz 6000 to 11999kHz 12000 to 13499kHz 13500 to 33999kHz 30 to 60MHz 300 150 120 100 150 Frequency Range Level of Drive Units 3200 to 15999kHz 16000 to 24999kHz 25000 to 33999kHz 30 to 60MHz 10(500max.) 10(300max.) 10(100max.) 10(300max.) Dimensions (Unit:mm) PbFree Items Symbol Specification Units Remarks Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range 3.81max. 4.8max.4.5max. 0.2max. 0.7 10.21max. 4.8max. 4.8max. 12.30.2 4.50.1 10.80.2 0.60.1 5.5 2.0 9.5 RoHSCompliant Crystal Units Surface Mount Leaded Type CXZ49GFB (CX-49G) for Audio & Visual, Office Equipment - 44 -
- Crystalunitforautomotiveelectronics
- Smallandlowprofile(5.0x3.2x1.3mm)
- Ceramicpackage
- Productwithleadfreeterminations
- Reflowcompatible
- EngineControl Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 2.4 4.1 1.91.9 CONNECTION 5.00.2 2.4 1.3 3.20.22.0 1.30.2 1.3 Frequency Range Level of Drive Units 9843.75 to 15999kHz 16000 to 24999kHz 25000 to 40000kHz 10(500max.) 10(300max.) 10(100max.) Frequency Range Motional Series Resistance Units ohm 9843.75 to 11999kHz 12000 to 13999kHz 14000 to 29999kHz 30000 to 40000kHz 200 150 100 Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Items Specifications f_nom OT f_tol f_tem DL CL T_use T_stg 9843.75to40000 Fundamental 100 200 Table1 Table2 40to125 40to150 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX5032GA 16000 H0 Q S W ZZ 12pF 10010-6 40°Cto125°C 20010-6 Q S W ZZ CustomSpecification Code Freq.(kHz) Code Freq.(kHz) 10000 12000 15000 16000 10000.000 12000.000 15000.000 16000.000 18000 20000 24000 25000 18000.000 20000.000 24000.000 25000.000 Symbol Specification Units Remarks Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range RoHSCompliant Crystal Units Surface Mount Type CX5032GA (CX-53G) 5.0×3.2mm for Automotive - 45 -
- Crystalunitforautomotiveelectronics
- Smallandlowprofile(8.0x4.5x1.9mm)
- Ceramicpackage,Jleadtype
- Productwithleadfreeterminations
- Reflowcompatible
- EngineControl,TPMS Dimensions Specifications (Unit:mm) Recommended Land Pattern (Unit:mm) 1.7 3.0 3.0 7.1 1.7 8.00.2 0.9 2.2 0.8 4.50.2 0.1 1.90.2 CONNECTION Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units 8000 to 15999kHz 16000 to 24999kHz 25000 to 30000kHz 10(500max.) 10(300max.) 10(100max.) Frequency Range Motional Series Resistance Units ohm 8000 to 9999kHz 10000 to 11999kHz 12000 to 30000kHz 200 150 100 Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 8000to30000 Fundamental 100 200 Table1 Table2 40to125 40to150 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CX8045JA 08000 H0 Q S W ZZ 12pF 10010-6 40°Cto125°C 20010-6 Q S W ZZ CustomSpecification Code Freq.(kHz) Code Freq.(kHz) 08000 09843 10000 12000 13560 14000 8000.000 9843.750 10000.000 12000.000 13560.000 14000.000 16000 18000 20000 24000 25000 30000 16000.000 18000.000 20000.000 24000.000 25000.000 30000.000RoHSCompliant 8.0×4.5mm for Automotive Crystal Units Surface Mount Type CX8045JA (CX-17F) - 46 -
- Crystalunitforautomotiveelectronics
- Smallandlowprofile(11.85.52.5mm)
- Ceramicpackage
- Productwithleadfreeterminations
- Reflowcompatible
- EngineControl Dimensions Specifications (Unit:mm) Recommended Land Pattern (Unit:mm) 7.7 5.0 2.5 4.02.7 6.5 11.80.3 5.50.3 2.50.3 7.0 CONNECTION 2.0 2.5 1.5 Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units Frequency Range Motional Series Resistance Units ohm 3500 to 3999kHz 4000 to 7999kHz 8000 to 11999kHz 12000 to 20000kHz 300 200 120 100 3500 to 15999kHz 16000 to 20000kHz 10(500max.) 10(300max.) Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 3500to20000 Fundamental 100 200 Table1 Table2 40to125 40to125 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXB855GA 06000 H0 Q S W ZZ Code Freq.(kHz) Code Freq.(kHz) 04000 05000 06000 08000 10000 4000.000 5000.000 6000.000 8000.000 10000.000 12000 16000 18000 20000 12000.000 16000.000 18000.000 20000.000 12pF 10010-6 40°Cto125°C 20010-6 Q S W ZZ CustomSpecification RoHSCompliant 11.8×5.5mm for Automotive Crystal Units Surface Mount Type CXB855GA (CX-5FW) - 47 -
- Crystalunitforautomotiveelectronics
- Metalpackage,leadedtype
- Aresistanceweldhermeticsealedtype
- Suitableforhighdensityassembly andmassproduction
- EngineControl Specifications Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units Frequency Range Motional Series Resistance Units ohm 3200 to 3499kHz 3500 to 4099kHz 4100 to 4799kHz 4800 to 5999kHz 6000 to 11999kHz 12000 to 13499kHz 13500 to 20000kHz 300 150 120 100 3200 to 15999kHz 16000 to 20000kHz 10(500max.) 10(300max.) Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 3200to20000 Fundamental 100 200 Table1 Table2 40to125 40to125 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXH49SFA 06000 H0 Q S W ZZ Code Freq.(kHz) Code Freq.(kHz) 04000 05000 06000 08000 10000 4000.000 5000.000 6000.000 8000.000 10000.000 12000 16000 18000 20000 12000.000 16000.000 18000.000 20000.000 12pF 10010-6 40°Cto125°C 20010-6 Q S W ZZ CustomSpecification Dimensions (Unit:mm) 3.8max. 5.0max.3.5max. 11.00max. 10.3max. 201 0.430.05 4.880.2 PbFree RoHSCompliant Crystal Units Leaded Type CXH49SFA (HC-49/U-S) for Automotive - 48 -
- Crystalunitforautomotiveelectronics
- Metalpackage,leadedtype
- Aresistanceweldhermeticsealedtype
- Suitableforhighdensityassembly andmassproduction
- EngineControl Specifications Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units Frequency Range Motional Series Resistance Units ohm 3200 to 3499kHz 3500 to 4099kHz 4100 to 4799kHz 4800 to 5999kHz 6000 to 11999kHz 12000 to 13499kHz 13500 to 20000kHz 300 150 120 100 3200 to 15999kHz 16000 to 20000kHz 10(500max.) 10(300max.) Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 3200to20000 Fundamental 100 200 Table1 Table2 40to125 40to125 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXZ49FFA 06000 H0 Q S W ZZ Code Freq.(kHz) Code Freq.(kHz) 04000 05000 06000 08000 10000 4000.000 5000.000 6000.000 8000.000 10000.000 12000 16000 18000 20000 12000.000 16000.000 18000.000 20000.000 12pF 10010-6 40°Cto125°C 20010-6 Q S W ZZ CustomSpecification Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) PbFree 5.00.3 5.00.2 3.450.1 3.00.2 1.0 1.9 1.00.1 1.6 1.6 1.4 0.8 11.40.3 4.880.2 CONNECTION 2.8+0.2 5.0 2.7 2.5 4.0 RoHSCompliant for Automotive Crystal Units Surface Mount Leaded Type CXZ49FFA (CX-49F) - 49 -
- Crystalunitforautomotiveelectronics
- Metalpackage,leadedtype
- Aresistanceweldhermeticsealedtype
- Suitableforhighdensityassembly andmassproduction
- EngineControl Specifications Frequency Range Overtone Order Frequency Tolerance Frequency Temp. Characteristics Motional Series Resistance Level of Drive Load Capacitance Operating Temp. Range Storage Temp. Range Frequency Range Level of Drive Units Frequency Range Motional Series Resistance Units ohm 3200 to 3499kHz 3500 to 4099kHz 4100 to 4799kHz 4800 to 5999kHz 6000 to 11999kHz 12000 to 13499kHz 13500 to 20000kHz 300 150 120 100 3200 to 15999kHz 16000 to 20000kHz 10(500max.) 10(300max.) Table1 Motional Series Resistances Table2 Level of Drive *Pleaseinqurieaboutspecificationsotherthantheabove. Items Symbol Specification Units Remarks f_nom OT f_tol f_tem DL CL T_use T_stg 3200to20000 Fundamental 100 200 Table1 Table2 40to125 40to125 kHz –––– 10-6 10-6 ohm pF @25°C ref.@25°COverOperatingTemp.Range How to Order ᶄᶃ ᶅ ᶉᶈᶇᶆ ᶃCode ᶄTypicalFrequencies ᶅLoadCapacitance ᶆFrequencyStability ᶇOperatingTemperatureRange ᶈFrequencyTemperatureStability ᶉSpecial *Pleaseinquireaboutfrequenciesotherthantheabove. CXZ49LFA 06000 H0 Q S W ZZ Code Freq.(kHz) Code Freq.(kHz) 04000 05000 06000 08000 10000 4000.000 5000.000 6000.000 8000.000 10000.000 12000 16000 18000 20000 12000.000 16000.000 18000.000 20000.000 12pF 10010-6 40°Cto125°C 20010-6 Q S W ZZ CustomSpecification Dimensions (Unit:mm) Recommended Land Pattern (Unit:mm) 4.0 2.02.0 3.3 3.34.3 10.8 4.88 5.08max. 0.7~1.1 4.65max. 4.880.2 11.05max. 3.00.1 0.43 5.08max. 0.8~2.4 1.40.3 1.40.2 9.8max. 0.250.1 5.3max. t0.20 0.05 0.03 for Automotive Crystal Units Surface Mount Leaded Type CXZ49LPA (CX-49L) - 50 -
- Shock & Drop • Vibration Do not inflict excessive shock and mechanical vibration that exceeds the norm, such as hitting or mistakenly dropping, when transporting and mounting on a board. There are cases when pieces of crystal break, and pieces that are used become damaged,andbecomeinoperable.Whenashockorvibrationthat exceeds the norm has been inflicted, make sure to check the characteristics. 4. Mounting Precautions Leaded Devices The special glass, located where the lead of the retainer base comes out, is aligned with the coefficient of thermal expansion of the lead, If theglassisdamagedandcracksappear,theremaybecasesinwhichperformancedeterioratesanditfailstooperate. Consequently, when making the device adhere closely and applying solder, align the gap of the hole of the board with the gap of the lead andinsertwithoutexcessiveforce. When making the device adhere closely to a through hole board and applying solder, be careful that the solder does not get into the metal partoftheretainerbaseandcauseashort.Puttinginaninsulationspacerisonemoremethodofpreventingashortcircuit. When the lead is mounted floating, fix it as far as possible so that contact with other parts and the breakage due to the fatigue, and the mechanicalresonanceoftheleadwillnotoccur. When the lead is bent and used, do not bend the lead directly from the base, separate it 0.5mm or more and then bend it. When bending, beforeattachingtotheboard,fixtheplacewheretheleadcomesoutinadvanceandattachitafterbendingsothatacrackdoesnotoccurin theglasspart. Surface Mount Devices The lead of the device and the pattern of the board is soldered on the surface. Since extreme deformation of the board tears off the pattern, tearsofftheleadmetal,cracksthesolderanddamagesthesealedpartofthedeviceandtherearecasesinwhichperformancedeteriorates and operation fails, use it within the stipulated bending conditions. Due to the small cracks in the board resulting from mounting, please pay sufficientattentionwhenattachingadeviceatthepositionwherethewarpingoftheboardisgreat. When using an automatic loading machine, as far as possible, select a type that has a small impact and use it while confirming that there is nodamage. SurfacemountdevicesareNOTflowsolderingcompatible. 5. Storage Condition Since the long hour high temperature and low temperature storage, as well as the storage at high humidity are causes of deterioration in frequencyaccuracyandsolderability. Partsshouldbestoredintemperaturerangeof-5to+40°C,humidity40to60%RH,andavoiddirectsunlight.Thenusewithin6months. 2. Cleaning Since a crystal piece can be broken by resonance when a crystal device is cleaned by ultrasonic cleaning. Be careful when carrying outultrasoniccleaning. 3. Soldering conditions Standard soldering iron conditions Reflow conditions (Example) Tomaintaintheproductreliability,pleasefollowrecommendedconditions. RecommendedreflowConditionsvarydependinguponproducts. Pleasecheckwiththerespectivespecificationfordetails. Soldering iron Time Crystal Units 280°Cto340°C 31/0sec.max. Temperature(°C) 260°C±5°C10sec.(max.) 200°Cmin.30-45sec. Hold-Time1-2min. CoolDown2.5-5°C/s Ramp-Up1-3°C/s Time(sec.) CrystalUnits Handling Notes - 51 -
For Proper Use of Crystal Units 1. Characteristics of crystal units The thickness of crystal vibrator of the AT cut crystal unit as described in the previous page differs depending on the overtonemode. Thefrequency-temperaturecharacteristicsoftheATcutcrystalunitaretertiarycurves. Thediagrambelowshowsexamplesofthetertiarycurvesthatpasstemperaturerangeandfrequencydeviationspecifications. Therangeenclosedbythesmallerrectangularsatisfiesthefollowingspecification: Therangeenclosedbythelargerrectangularsatisfiesthefollowingspecification: (1) Relationship between thickness of crystal blank and oscillation frequency (2) Examples of specifications for frequency-temperature characteristics Thefollowingequivalentconstantsareusedneartheresonancefrequency. L1 :Motionalinductanceintheequivalentelectriccircuit C1 :Motionalcapacitanceintheequivalentelectriccircuit R :Motionalresistanceintheequivalentelectriccircuit C0 :Parallelcapacitanceintheequivalentelectriccircuit (3) Equivalent electric circuit and equivalent constant of crystal unit IncaseofcalculatingthethicknessofAT-cut16MHz AT/Fundamentalmode 3.5to33 33to100 100to150 150to200 1.67/f 5.01/f 8.35/f 11.69/f AT/3’rdO.T AT/5’thO.T AT/7’thO.T Cut angle/mode overtone Frequency range (MHz) Formula of thickness of crystal blank f:Seriesresonancefrequency(MHz) Ð70 Ð50 Ð10 Ð20 Ð30 Ð40 Ð50 Ð60 Ð70 Ð30 Ð10 10 30 50 70 90 110 Frequencydeviation f/f(106) Temperature(°C) *Theseareexamples.Requiredfrequency-temperaturespecificationsaredeterminedthrough individualconsultations. L1 C1 Equivalentelectriccircuitofaquartscrystalunit Handling Notes - 52 -
(4) Items calculated by equivalent constants and load capacitance 2. Oscillation circuit and crystal unit (1) Equivalent circuit of oscillation circuit and oscillation conditions fs:Seriesresonancefrequency fp:Parallelresonancefrequency :Capacitanceratio fL :Loadresonancefrequency RL :Loadresistance CL :Loadcapacitance Q :Qualityfactor TheequationfL showsthatfL variesasloadcapacitanceCL connectedtothecrystalunitchangesandthat fL becomeslarger asCL becomessmaller. TheequationRL showsthechangeinimpedancewithaloadcapacitanceconnected.Theimpedanceofcrystalunitbecomes largerasCL becomessmaller. Asimplifiedequivalentcircuitisshownbelow. fs L1 C1 fp C0C1 C1 C0 fL fs 2 (C0CL) 1C1 RL R1 1 CL CL C0 2 (fL/fs)1 Q R1 2 fs L1 1 2 fs C1 R1 Crystalunit Oscillationcircuit CL XL RL Crystalunit Oscillationcircuit CL=–XC CL :Loadcapacitance –R :Negativeresistance XL :Reactanceofcrystalunit –XC :Reactanceofoscillationcircuit RL :Loadresonanceresistance Handling Notes - 53 -
Theoscillationstart-upconditionsaredescribedas RL R and in order to oscillate the crystal unit accurately, it must be designed such that the negative resistance of the oscillation circuit becomes bigger comparing with the resonance resistance value at the time of loading. This ratio is called oscillation margindegreeMOSC anditisoneofcriticalfactorswhendesigningtheoscillationcircuitandisdescribedasbelow. For oscillation circuit designing conditions, it is recommended that an oscillation circuit be designed using a negative resistanceofavaluefivetotentimesormorelargerthanRLcalculatedfromtheresonanceresistancespecificationvalue. Inasteadyoscillationstate,theloadresonanceresistanceisgivenasfollows: RL R The mutual conductance of the oscillation circuit decreases after the oscillation has started to continuously compensate for thepowerlossduetotheloadresonanceresistanceofthecrystalunit,whichcontinuesoscillation. Thefrequencyconditionisgivenasfollows: XL XC,XL XC 0 As shown in the following figure, the reactance of the crystal unit varies to a value matching the load capacitance of the oscillationcircuitCL XC.Thusanoscillationfrequencyisdetermined. Reactance Frequency Admittance fs fL fp Le CL–1/ fs :Seriesresonancefrequency fL :Loadresonancefrequency fp :Parallelresonancefrequency Handling Notes - 54 -
(2) Changes of load capacitance and oscillation frequency As shown above, the series resonance frequency of the crystal unit changes with load capacitance CL of the oscillation circuit. In the actual oscillation circuit, however, fine adjustments of oscillation frequencies are carried out by varying CL by the trimmer capacitor or the like. The following figure shows an example of load capacitance characteristics. The slope of the characteristics varies depending on the frequency, shape, the numberofovertonemode,etc. 3. Crystal oscillation circuit (1) CMOS fundamental crystal oscillation circuit As shown above, the series resonance frequency of the crystal The figure on the right shows a standard CMOS inverter crystal oscillationcircuitforoscillatingcrystalunitwithfundamentalmode. * Rx is an element to reduce excitation current of the crystal unit preventingfrequencyfluctuation,butRxisnotusedinsomecases. Characteristics of the circuit when load capacitances C1 and C2 are changed under the condition of C1 = C2 are shown in the figureontheright. It is not desirable that the excessive increase of the value of condenser leads to a decrease of the negative resistance resultinginincreasingthepossibilityofoscillationfailure. Rd mainly adjusts frequency characteristics of the negative resistance and is used to prevent oscillating by third Overtone mode. In case of a bigger circuit of the negative resistance, thereisacaseitisusedtopreventtheabnormaloscillation. 800 700 600 500 400 300 200 100 0 10 20 30 40 50 60 Loadcapacitycharacteristic f/f (10−6) CL (pF) Frequency(MHz) Negativeresistance C1=C2=10pF ResistanceofRd 3.5to6.9MHz=2.2k 7.0to16MHz=220 () -100 -200 -500 -1K -2K -5K -10K 4 6 8 10 12 14 16 Frequencycharacteristicsofnegativeresistance Rd Rx Xtal Buffer Rf=1M CMOSfundamentalcrystaloscillationcircuit Variationofnegativeresistancewithcondensercapacity CondensercapasityC (C1=C2)(pF) Negativeresistance () -100 16.0MHz 10.0MHz 3.579545MHz 0 10 20 30 40 50 -200 -500 -1K -2K -5K -10K Handling Notes - 55 -
(2) CMOS overtone crystal oscillation circuit ThisfigureshowsastandardCMOSinvertercrystaloscillationcircuittooscillateacrystalunitusingtheovertonemode. (4) Method of selecting circuit constants and functions of elements C1 :FormsloadcapacitanceofthecircuittogetherwithC2,L1 andL2.Avalueofapprox.5pFisused. C2 :FormsloadcapacitanceofthecircuittogetherwithC1,L1 andL2.Preventsfundamentalwaveoscillation.Shallbeselected sothatC2 comesbetweenthethirdovertonefrequencyatwhichresonancefrequencywithL2 istomakeoscillationand1/3 ofthethirdovertonefrequency.Avalueof10to22pFisused. C3 :Abypathcapacitor L1 :Acoiltoadjustloadcapacitanceoftheoscillationcircuittoavalueneartheseries.AvalueofseveralµHisused. L2 : Forms load capacitance of the circuit together with C1, C2 and L1. Prevents fundamental wave oscillation. Shall be selected sothatL2comesbetweenthethirdovertonefrequencyatwhichresonancefrequencywithC2 istomakeoscillationand1/3 ofthethirdovertonefrequency.Avalueof10to22pFisused. R1 :AQ dump resistor for L1 .As an element for preventing self-excited oscillation,Avalue of several k to several tens of k isused. *L1 andR1 mightnotbeused. (3) Selection of ICs and circuit constants by frequency bands SelectionofICsandcircuitconstantsbyfrequencybands *1:NecessaryforpreventingovertoneoscillationandmustbechangeddependingonthefrequencybandortheC1 andC2 values. *2:Usedtoreduceexcitationcurrentofthecrystalunit.Necessaryforstableoperationofsmall-sizedcrystalunits. *3:TheoptimumvaluedifferswiththevaluesofloadcapacitanceandRd. Frequency 3 to 4.9(MHz) 5 to 6.9(MHz) TC4069UB TC4SU69F 1M 7 to 9.9(MHz) 1500() 470() 0to1500 6to22(pF) 0() 10 to 19.9(MHz) TC74HCU04A TC7SU04F TC7WU04FU 20 to 30(MHz) 0() 0() 6to15(pF) 6to15(pF) TC74VHCU04 TC7SHU04F TC7WHU04FU IC Rf Rd *1 Rx *2 C1,C2 *3 X-tal Rf=1M 1000pF CMOSovertonecrystaloscillationcircuit TherearesamecaseswhenL1 andR1 arematchedtothevalueofloadcapacitance. Frequency range TC74VHCU04 TC7SHU04F TC7WHU04FU IC 20 to 60(MHz) 3to10pF 10to22pF Handling Notes - 56 -
(5) Method of checking oscillation circuit ᶃSome ICs have a low upper-limit value of usable frequency, so refer to individual IC catalog to make sure that the IC can oscillateacrystalunitwithanadequatenegativeresistance. ᶄThe following figure shows an example of a CMOS oscillation circuit. Check resistance Rsup is connected in series with the crystal unit to check the negative resistance. Use 3 to 22pF for C1 and C2, and see the table below for values of check resistance. ᶅUsing a spectrum analyzer or oscilloscope, check that every oscillation is normally activated while turning the power on and off several times. For oscillation circuits with no power regulator ICs, carefully check changes in the negative resistanceagainstsupplyvoltageandinfrequencies. ᶆWhenoscillationisnormal,removethecheckresistancebeforeusingthecrystalcircuit. ᶇIfoscillationisunstableorisnotgenerated,graduallydecreasethevaluesofC1 andC2 untilnormaloscillationisobtained. ᶈIf normal oscillation cannot be generated near 10MHz or near 20MHz, replace the IC with a new one suitable for higher frequencies. (6) Load capacitance and oscillation frequency of transistor/fundamental crystal oscillation circuit Viewedfromtheconnectionterminalsofacrystalunit,theloadcapacitanceCL ofanoscillationcircuitisgenerallycomprised of C1, Ct, C2, and C3 if stray capacitance of the circuit and the capacitance between base and emitter of the transistor are ignored. Since trimmer capacitor is adjusted to CT = MIN. to MAX. for zero adjustment of the oscillation frequency, the value ofCL atthistimecanbeobtainedfromthefollowingequation. When these calculation results are substituted for the following equation for load resonance frequency, the oscillation frequencycanbeobtained. Frequency range Values of check resistance 3.5to4.5MHz 1.5k 4.6to6.0MHz 1.0k 6.1to10.0MHz 800 10.1to14.0MHz 500 14.1to20.0MHz 400 C1 C2 Rsup Rf CLMIN. to CLMAX.C1CT 1 C3 1 C1CT 1 C3 11 1 fL fs 2 (C0CL) 1C1 Handling Notes - 57 -
Select each circuit constant so that the adjustment ranges of upper and lower frequencies of this circuit are even on the basisofthefrequencyofasinglecrystalunitmeasuredusingaspecifiedloadcapacity,andthatthemarginof±8to1010-6 oftheroomtemperaturedeviationofthecrystalunitcanbereserved. To prevent the decrease in the negative resistance, always connect the crystal unit to the base of the transistor. For transistorsusedforoscillationcircuits,hfeandfTareimportant. To obtain the large negative resistance with small current consumption, select a transistor for high frequency amplification withhfeofover250andfT of1GHzormore. (7) Transistor third overtone oscillation circuit ᶃThe resonance circuit comprised of L2 and C3 is required on the emitter side for preventing fundamental mode crystal oscillation.Settheresonancefrequencytoavaluehigherthantheintermediatebetweenfundamentalwavefrequencyand thirdovertonefrequency. ᶄUse L1, referred to as an elongation coil, to connect the load capacitance of the oscillation circuit in series. R1 prevents self-excited oscillation by L1. Since it is difficult in general to design the oscillation circuit having adequate negative resistance in the overtone oscillation frequency band, there are no other effective means of obtaining adequate oscillation marginexceptforpreventingtheincreaseofloadresonanceresistanceRL ofthecrystalunit. 0.01 OUT R3C3 Vcc CtC1 Handling Notes - 58 -
To prevent decrease in the negative resistance, connect the crystal unit to the base of the transistor as in the fundamental mode crystal oscillation circuit. To use the crystal circuit for both oscillation and multiplication, connect a parallel resonance circuithavingmultiplicationfrequencyasresonancefrequencytothecollectorofthetransistor. When selecting circuit constants for zero adjustment range by trimmer capacitor, set the constants to values obtained by adding approx. 12 to 1510-6 to the room temperature deviation of the crystal unit, centering the value obtained by measuringthecrystalunitwithloadcapacitancesinseries.(Whentheroomtemperaturedeviationspecificationofthecrystal unitis1010-6) (8) Excitation power of oscillation circuit Normal operation of crystal units is not assured when excitation power is raised. The allowable excitation power varies depending on the shape of the crystal unit or the stability of targeted frequency. When highly accurate oscillation is required, however,itisrecommendedtouseanoscillationcircuitwithanexcitationpowerof5to50µWorless.Forothercases,refer toindividualrelevantcrystalunitsonthepagesofthecatalog. (9) Precautions for designing printed circuit board Be sure to design printed circuit board patterns that connect a crystal unit with other oscillation elements so that the lengths of such patterns become shortest possible to prevent deterioration of characteristics due to stray capacitances and wiring inductance. For multi-layer circuit boards, it is important not to wire the ground and other signal patterns right beneath the oscillationcircuit. RL in the equation of load resonance resistance can be made equal to RS by connecting CL in series, or making it infinite, whichpreventsincreaseintheloadresonanceresistance. L2C3 1000P Vcc OUT CtC1 RL R1 1 CL Handling Notes - 59 -
˙CrystalUnits Tape&ReelSpecifications A B C D E F G H J L N O P Q R S U W Qty 2.00.1 4.00.1 1.550.05 4.00.1 5.50.1 1.750.1 12.00.3 1.050.1 4.20.1 2.70.1 0.950.05 0.20.05 180+0/-3 60+1/-0 130.2 210.8 2.00.5 131 CX4025SB (CX-4025S) 2.00.1 4.00.1 1.50.1 8.00.1 5.50.1 1.750.1 12.00.3 1.50.1 5.50.1 3.70.1 1.40.1 0.30.05 3302/1782 802/1001 130.2 210.8 2.00.5 13.5+1/-0.5 CX5032SB (CX-96F) 2.00.1 4.00.1 1.550.1 8.00.1 5.50.1 1.750.1 12.00.2 1.550.1 5.40.1 3.60.1 1.70.1 0.250.05 3302/2542 1001 130.2 210.8 2.00.5 13.4+2/-0 CX5032GB (CX-53F) 2.00.1 4.00.1 1.50.1 8.00.1 7.50.1 1.750.1 16.00.3 1.550.05 8.40.1 4.90.1 2.10.1 0.30.05 3302/2542 801 130.2 210.8 2.00.5 16.0+2/-0 CX8045GB (CX-8045G) CX8045JA (CX-17F) CXZ49FFA (CX-49F) 2.00.1 4.00.1 1.550.05 8.00.1 11.50.1 1.750.1 24.00.3 2.050.05 11.50.1 5.40.1 5.50.1 0.30.05 3302 1001 130.5 210.5 2.00.2 25.50.5 1000 2.00.1 4.00.1 1.550.05 12.00.1 11.50.1 1.750.1 24.00.3 2.050.05 12.20.1 5.850.1 2.80.1 0.30.05 3302 1001 130.5 210.5 2.00.5 24.4+2/-0 1000 CX855GA (CX-5FW) CXB855GB (CX-5FD) 2.00.1 4.00.1 1.50.1 16.00.1 11.50.1 1.750.1 24.00.3 2.20.1 6.50.1 0.50.05 3302 1001 130.5 25.5+1/-0.5 600 CXZ9LPA (CX-49L) T A P E R E E L 2.00.05 4.00.1 1.550.05 4.00.05 3.50.05 1.750.1 8.00.2 1.050.1 3.50.1 2.80.1 0.850.1 0.250.05 180+0/-3 60+1/-0 130.2 210.8 2.00.5 91 CX2520SB (CX-2520SB) 2.00.05 4.00.1 1.550.05 4.00.05 3.50.05 1.750.1 8.00.2 1.050.1 3.50.1 2.80.1 0.850.1 0.250.05 180+0/-3 60+1/-0 130.2 210.8 2.00.5 91 CX3225SB (CX-101F) G H J E F C B A D N O L S R U W <ReelDimensions> P Q Handling Notes - 60 -