M685-01-BB-BD

M685 ICST | Alldatasheet

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M685 Datasheet Rev 0.4 2 of 7 Revised 16Nov2004 Integrated Circuit Systems, Inc. ● Networking & Communications ● www.icst.com ● tel (508) 852-5400 Integrated Circuit Systems, Inc. M685 DUAL SAW, SELECTABLE FREQUENCY VCSO Preliminary Information PIN DESCRIPTIONS Number Name I/O Configuration Description 1V I N Input Frequency control input.

2 F_SEL Input Internal pull-down resistor 1

Frequency select: Logic 1 selects Frequency 2. Logic 0 selects Frequency 1. 3G N D Ground Power supply ground connection. FOUT nFOUT Output No internal terminator Clock output pair. Differential LVPECL. 6V C C Power Power supply connection, connect to + 3.3V. Table 2: Pin Descriptions Note 1: See “Frequency Select” in Table 5 (DC Characteristics for M685-01 on pg. 3) and Table 7 (DC Characteristics for M685-02 on pg. 4). ABSOLUTE MAXIMUM RATINGS1 Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in Recommended Conditions of Operation, DC Characteristics, or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Symbol Parameter Rating Unit VI Inputs -0.5 to VCC +0.5 V VO Outputs -0.5 to VCC +0.5 V VCC Power Supply Voltage 4.6 V TS Storage Temperature -55 to +125 oC Table 3: Absolute Maximum Ratings RECOMMENDED CONDITIONS OF OPERATION Symbol Parameter Min Typ Max Unit VCC Positive Supply Voltage 2.97 3.3 3.63 V TA Ambient Operating Temperature -40 25 +85 oC Table 4: Recommended Conditions of Operation

M685 Datasheet Rev 0.4 3 of 7 Revised 16Nov2004 Integrated Circuit Systems, Inc. ● Networking & Communications ● www.icst.com ● tel (508) 852-5400 M685 DUAL SAW, SELECTABLE FREQUENCY VCSO Preliminary Information Integrated Circuit Systems, Inc. ELECTRICAL SPECIFICATIONS FOR M685-01 DC Characteristics for M685-01 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq.’s = 155.52, 167.3316MHz, Outputs terminated into 180Ω to ground Symbol Parameter Pin Min Typ Max Unit Power Supply VCC Positive Supply Voltage VCC 2.97 3.3 3.63 V ICC Power Supply Current 90 125 mA Control Voltage VIN Input Control Voltage Range VIN 0 3.3 V VIN Input Impedence 100 kΩ Frequency Select1 Note 1: Internally pulled down to Logic 0 (Frequency 1) if left unselected. VIH Input High Voltage F_SEL 2 Vcc + 0.3 V VIL Input Low Voltage -0.3 0.8 V IIH Input High Current 5 µA IIL Input Low Current -150 µA Rpulldown Internal Pull-down Resistor 51 kΩ Differential Outputs VOH Output High Voltage FOUT, nFOUT Vcc - 0.98 Vcc - 0.75 V VOL Output Low Voltage Vcc - 1.95 Vcc - 1.63 V VP-P Peak to Peak Output Voltage2 Note 2: Single-ended measurement. See Figure 3, Output Rise and Fall Time, on pg. 5. 0.450 0.625 0.85 VP-P IOUT Output Current 20 mA Table 5: DC Characteristics for M685-01 AC Characteristics for M685-01 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq.’s = 155.52, 167.3316MHz, Outputs terminated into 180Ω to ground Symbol Parameter Min Typ Max Unit Notes Control Voltage VIN Modulation Bandwidth VIN 600 kHz Output FOUT Output Center Frequency Range M685-01 125 175 MHz Note 1: Also fully meets ±50 ppm minimum pull- range specification that is commonly required. ±120 ppm fSTAB Frequency Stability 100 ppm p-p At any givin VIN LIN Tuning Linearity 6 % VIN = 0.3 to 3.0V Best fit straight line KVCO VCO Gain @155.52MHz 400 ppm/V VIN = 0.3 to 3.0V Non-harmonic Spurious -50 -77 dBc Φ n SSB (single sideband) Phase Noise, offset from carrier 155.52MHz 100Hz Offset -48 dBc/Hz 1kHz Offset -75 dBc/Hz 10kHz Offset -99 dBc/Hz 100kHz Offset -124 dBc/Hz 1MHz Offset -142 dBc/Hz J(t) Jitter (rms) 155.52MHz 12kHz to 20MHz 0.30 ps rms 50kHz to 80MHz 0.18 ps rms odc Output Duty Cycle 2 Note 2: See Parameter Measurement Information on pg. 5. 45 55 % tR Output Rise Time 2 for FOUT, nFOUT 275 425 ps 20% to 80% tF Output Fall Time 2 for FOUT, nFOUT 275 425 ps 20% to 80% Table 6: AC Characteristics for M685-01

M685 Datasheet Rev 0.4 4 of 7 Revised 16Nov2004 Integrated Circuit Systems, Inc. ● Networking & Communications ● www.icst.com ● tel (508) 852-5400 Integrated Circuit Systems, Inc. M685 DUAL SAW, SELECTABLE FREQUENCY VCSO Preliminary Information ELECTRICAL SPECIFICATIONS FOR M685-02 DC Characteristics for M685-02 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq.’s = 622.08, 669.3266MHz, Outputs terminated into 180Ω to ground Symbol Parameter Pin Min Typ Max Unit Power Supply VCC Positive Supply Voltage VCC 2.97 3.3 3.63 V ICC Power Supply Current 90 125 mA Control Voltage VIN Input Control Voltage Range VIN 0 3.3 V VIN Input Impedence 100 kΩ Frequency Select1 Note 1: Internally pulled down to Lo gic 0 (Frequency 1) if left unselected. VIH Input High Voltage F_SEL 2 Vcc + 0.3 V VIL Input Low Voltage -0.3 0.8 V IIH Input High Current 5 µA IIL Input Low Current -150 µA Rpulldown Internal Pull-down Resistor 51 kΩ Differential Outputs VOH Output High Voltage FOUT, nFOUT Vcc - 0.98 Vcc - 0.75 V VOL Output Low Voltage Vcc - 1.95 Vcc - 1.63 V VP-P Peak to Peak Output Voltage2 Note 2: Single-ended measuremen t. See Figure 3, Output Rise and Fall Time, on pg. 5. 0.450 0.625 0.85 VP-P IOUT Output Current 20 mA Table 7: DC Characteristics for M685-02 AC Characteristics for M685-02 Unless stated otherwise, VCC = 3.3 Volts + 10%, TA = 0 to 85 oC, VCSO Freq.’s = 622.08, 669.3266MHz, Outputs terminated into 180Ω to ground Symbol Parameter Min Typ Max Unit Notes Control Voltage VIN Modulation Bandwidth VIN 600 kHz Output FOUT Output Center Frequency Range M685-02 500 700 MHz Note 1: Also fully meets ±50 ppm minimum pull- range specification that is commonly required. ±120 ppm fSTAB Frequency Stability 100 ppm p-p At any givin VIN LIN Tuning Linearity 6 % VIN = 0.3 to 3.0V Best fit straight line KVCO VCO Gain @622.08MHz 400 ppm/V VIN = 0.3 to 3.0V Non-harmonic Spurious -50 -77 dBc Φ n SSB (single sideband) Phase Noise, offset from carrier 622.08MHz 100Hz Offset -42 dBc/Hz 1kHz Offset -72 dBc/Hz 10kHz Offset -102 dBc/Hz 100kHz Offset -127 dBc/Hz 1MHz Offset -146 dBc/Hz J(t) Jitter (rms) 622.08MHz 12kHz to 20MHz 0.22 ps rms 50kHz to 80MHz 0.16 ps rms odc Output Duty Cycle 2 Note 2: See Parameter Measurement Information on pg. 5. 45 55 % tR Output Rise Time 2 for FOUT, nFOUT 275 400 ps 20% to 80% tF Output Fall Time 2 for FOUT, nFOUT 275 400 ps 20% to 80% Table 8: AC Characteristics for M685-02

M685 Datasheet Rev 0.4 6 of 7 Revised 16Nov2004 Integrated Circuit Systems, Inc. ● Networking & Communications ● www.icst.com ● tel (508) 852-5400 Integrated Circuit Systems, Inc. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which wou ld result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices o r critical medical instruments. M685 DUAL SAW, SELECTABLE FREQUENCY VCSO Preliminary Information

ORDERING INFORMATION

Figure 6: Part Numbering Scheme Example Order Numbers M685-01 Standard Output Frequencies & Order Codes M685-02 Standard Output Frequencies & Order Codes Consult ICS for the availability of other frequencies For Output Frequencies (MHz) Frequency 1, Frequency 2 Order Part Number M685-0y-xx-xx 155.5200, 167.3316 M685-01-BA-BH 156.2500, 161.1328 M685-01-BB-BD 622.0800, 669.3266 M685-02-AA-AH 625.0000, 644.5313 M685-02-AB-AD Table 9: Example Order Numbers M685 Part Number: M680-01 - xx -xx See Tables 10 and 11 at right for frequency order codes. Device Number Consult ICS for other frequencies and order codes. M685 Variant -01 = Output Frequencies 125 - 175 MHz -02 = Output Frequencies 500 - 700 MHz -0y Output Frequency 1 Order Code Output Frequency 2 Order Code 153.6000 BO 167.2820 BF 155.5200 BA 167.3280 BG 156.2500 BB 167.3316 BH 156.8324 BC 167.7097 BI 161.1328 BD 168.0400 BJ 164.3555 BM 172.6423 BK 166.6286 BE 173.3708 BL Table 10: M685-01 Standard Output Frequencies & Order Codes 614.4000 AO 669.1281 AF 622.0800 AA 669.3120 AG 625.0000 AB 669.3266 AH 627.3296 AC 670.8386 AI 644.5313 AD 672.1600 AJ 657.4219 AM 690.5692 AK 666.5143 AE 693.4830 AL Table 11: M685-02 Standard Output Frequencies & Order Codes

M685 Datasheet Rev 0.4 - Errata Revised 16Nov2004 Integrated Circuit Systems, Inc. ● Networking & Communications ● www.icst.com ● tel (508) 852-5400 M685 DUAL SAW, SELECTABLE FREQUENCY VCSO Integrated Circuit Systems, Inc. Errata PRODUCT APPLICATION CAUTION F_SEL Change During Power-Up Can Affect Output Frequency Accuracy M685E1 The M685 features an F_SEL input which is used to select the internal VCSO frequency. The F_SEL input logic level should not be changed while the M685 device is in operation (that is, voltage is applied to the pin VCC), particularly when the pin VIN (the control voltage input) is above 2.0V . Changing the F_SEL input logic level during operation may result in an erroneous output frequency. It is safe to change F_SEL during operation if pin VIN can be held low, or at least below 2.0V.