SL2304NZ SPECTRALINEAR | Alldatasheet
Document overview
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Technical content
Rev 1.3, May 16, 2007 Page 1 of 9 2200 Laurelwood Road, Santa Clara, CA 95054 Tel: (408) 855-0555 Fax: (408) 855-0550 www.SpectraLinear.com SL2304NZ Key Features x DC to 160 MHz operating frequency range x Low output clock skew: 50ps-typ x Low part-to-part output skew: 90 ps-typ x 3.3V +/-10% operation supply voltage x Low power dissipation: x - 7 mA-typ at 33MHz x - 8 mA-typ at 66MHz x - 12 mA-typ at 133MHz x One input to four output fanout buffer drivers x Output Enable (OE) control function x Available in 8-pin TSSOP package x Available in Commercial and Industrial grades x Available in Lead (Pb) free package
Applications
x General Purpose PCI/PCI-X Clock Buffer x Printers, MFPs and Digital Copiers x PCs and Work Stations x Routers, Switchers and Servers x Datacom and Telecom x High-Speed Digital Embeded Systems
Description
The SL2304NZ is a low skew, jitter and power fanout Buffer designed to produce up to four (4) clock outputs from one (1) reference input clock, for high speed clock distribution, including PCI/PCI-X applications. The SL2304NZ products operate from DC to 160MHz. The only difference between SL2304NZ-1 and SL2304NZ- 1Z is the OE logic implementation. Refer to the Available OE Logic Configuration Table. 1 Refer to SL23EP04NZ products for DC to 220MHz-max frequency range, 2.5V to 3.3V power supply operation, improved skew, jitter and higher drive options. Benefits x Up to four (4) distribution of input clock x Low skew x Low Jitter x Low power dissipation Block Diagram Low Jitter and Skew DC to 160MHz Clock Buffer PPrreelliimmiinnaarryy
Rev 1.3, May 16, 2007 Page 2 of 9 SL2304NZ Pin Configuration 8-Pin TSSOP Pin Description Pin Number Pin Name Pin Type Pin Description
1 CLKIN Input Reference Clock Input
2 OE Output Output Enable. Refer to the Table. 1 for Logic Table
3 CLK1 Output Buffered Clock Output 1
4 GND Power Power Ground.
5 CLK2 Output Buffered Clock Output 2
6 VDD Output 3.3V Power Supply
7 CLK3 Power Buffered Clock Output 3
8 CLK4 Input Buffered Clock Output 4
distribution, including PCI/PCI-X applications. to 160MHz clock range with up to 25pF output load. given in the switching electrical tables. SL2304NZ I/O is powered by using VDD. improved skew, jitter and higher drive options. Table 1. Available SL2304 CLKIN and OE Logic Configurations
Rev 1.3, May 16, 2007 Page 4 of 9 SL2304NZ Absolute Maximum Ratings (All Products) Description Condition Min Max Unit Supply voltage, VDD -0.5 4.6 V All Inputs and Outputs -0.5 VDD+0.5 V Ambient Operating Temperature In operation, C-Grade 0 70 °C Ambient Operating Temperature In operation, I-Grade -40 85 °C Storage Temperature No power is applied -65 150 °C Junction Temperature In operation, power is applied – 125 °C Soldering Temperature – 260 °C ESD Rating (Human Body Model) MIL-STD-883, Method 3015 2000 – V Operating Conditions (C-Grade and VDD=3.3V) Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C Description Symbol Condition Min Typ Max Unit Operating Voltage VDD VDD+/-10% 2.97 3.3 3.63 V Operating Temperature TA Ambient Temperature 0 – 70 °C Input Capacitance VIH Pins 1 and 2 – 5 7 pF Output Capacitance COUT Pins 3, 5, 7 and 8 – 3 5 pF Load Capacitance CL Pins 3, 5, 7 and 8 – – 30 pF Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C Description Symbol Condition Min Typ Max Unit Input Low Voltage VINL CLKIN and OE – – 0.8 V Input High Voltage VINH CLKIN and OE 2.0 – VDD+0.3 V Input Low Current IINL 0 < VIN < 0.8V -5 +/-2 5 µA Input High Current IINH 2.4V < VIN < VDD -5 +/-2 5 µA VOL1 I OL=24mA – – 0.80 V Output Low Voltage VOL2 I OL=12mA – – 0.55 V VOH1 I OH=-24mA 2.0 – – V Output High Voltage VOH1 I OH=-12mA 2.4 – – V Power Supply Current IDD1 CLKIN=33MHz CL=0 (No load at outputs) – 7 10 mA Power Supply Current IDD2 CLKIN=66MHz CL=0 (No load at outputs) – 8 12 mA Power Supply Current IDD3 CLKIN=133MHz CL=0 (No load at outputs) –1 2 1 8 m A
Rev 1.3, May 16, 2007 Page 5 of 9 SL2304NZ Switching Electrical Characteristics (C-Grade and VDD=3.3V) Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C Description Symbol Condition Min Typ Max Unit Output Frequency Range FOUT CL=25pf 0 – 160 MHz Input Duty Cycle DC1 Measured at VDD/2 20 50 80 % Output Duty Cycle DC2 CL=15pF, Fout=66 MHz Measured at VDD/2 45 50 55 % Output Duty Cycle DC3 CL=15pF, Fout=133 MHz Measured at VDD/2 45 50 55 % Output Rise Time tr CL=25pF, measured at 0.8V to 2.0V – – 1.5 ns Output Fall Time tf CL=25pF, all versions, measured at 0.8V to 2.0V – – 1.5 ns CLKIN=66MHz, CL=15pF 5 – – ns CLKIN High or Low Time tHL CLKIN=140MHz, CL=15pF 2 – – ns Output to Output Skew SKW1 Measured at VDD/2 and Outputs are equally loaded – 50 100 ps Part to Part Skew SKW2 Measured at VDD/2 and Outputs are equally loaded – 90 200 ps Propagation Delay Time PDT Measured at VDD/2 from CLKIN to Output Clock rising edge and Outputs are equally loaded – 3.0 3.8 ns Cycle-to-Cycle Jitter CCJ1 CLKIN=66MHz and CL=0 (No Load) – 60 120 ps Cycle-to-Cycle Jitter CCJ2 CLKIN=133MHz and CL=0 (No Load) – 45 90 ps
Rev 1.3, May 16, 2007 Page 6 of 9 SL2304NZ Operating Conditions (I-Grade and VDD=3.3V) Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C Description Symbol Condition Min Typ Max Unit Operating Voltage VDD VDD+/-10% 2.97 3.3 3.63 V Operating Temperature TA Ambient Temperature -40 – 85 °C Input Capacitance VIH Pins 1 and 2 – 6 8 pF Output Capacitance COUT Pins 3, 5, 7 and 8 – 4 6 pF Load Capacitance CL Pins 3, 5, 7 and 8 – – 25 pF Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C Description Symbol Condition Min Typ Max Unit Input LOW Voltage VINL CLKIN and OE – – 0.8 V Input HIGH Voltage VINH CLKIN and OE 2.0 – VDD+0.3 V Input LOW Current IINL 0 < VIN < 0.8V -6 +/-3 6 µA Input HIGH Current IINH 2.4V < VIN < VDD -6 +/-3 6 µA IOL=24mA – – 0.80 V Output Low Voltage VOL IOL=12mA – – 0.55 V IOH=-24mA 2.0 – – V Output High Voltage VOH IOH=-12mA 2.4 – – V Power Supply Current IDD1 CLKIN=33MHz CL=0 (No load at outputs) – 8 11 mA Power Supply Current IDD2 CLKIN=66MHz CL=0 (No load at outputs) – 9 13 mA Power Supply Current IDD3 CLKIN=133MHz CL=0 (No load at outputs) –1 4 2 0 m A Switching Electrical Characteristics (I-Grade and VDD=3.3V) Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C Description Symbol Condition Min Typ Max Unit Output Frequency Range FOUT CL=25pf 0 – 160 MHz Input Duty Cycle DC1 Measured at VDD/2 20 50 80 % Output Duty Cycle DC2 CL=15pF, Fout=66 MHz Measured at VDD/2 45 50 55 % Output Duty Cycle DC3 CL=15pF, Fout=133 MHz Measured at VDD/2 45 50 55 %
Rev 1.3, May 16, 2007 Page 7 of 9 SL2304NZ Switching Electrical Characteristics (I-Grade and VDD=3.3V – Cont.) Unless otherwise stated VDD= 3.3V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C Output Fall Time tf CL=25pF, measured at 0.8V to 2.0V – – 1.6 ns CLKIN=66MHz, CL=15pF 5 – – ns CLKIN High or Low Time tHL CLKIN=140MHz, CL=15pF 2 – – ns Output to Output Skew SKW1 Measured at VDD/2 and Outputs are equally loaded – 50 100 ps Part to Part Skew SKW2 Measured at VDD/2 and Outputs are equally loaded – 90 200 ps Propagation Delay Time PDT Measured at VDD/2 from CLKIN to Output Clock rising edge and Outputs are equally loaded – 3.2 4.0 ns Cycle-to-Cycle Jitter CCJ1 CLKIN=66MHz and CL=0 (No Load) – 70 140 ps Cycle-to-Cycle Jitter CCJ2 CLKIN=133MHz and CL=0 (No Load) – 50 100 ps External Components & Design Considerations Typical Application Schematic Comments and Recommendations Decoupling Capacitor: A decoupling capacitor of 0.1ȝF must be used between VDD and VSS pins. Place the capacitor on the component side of the PCB as close to the VDD pin as possible. The PCB trace to the VDD pin and to the GND via should be kept as short as possible. Do not use vias between the decoupling capacitor and the VDD pin. Series Termination Resistor: A series termination resistor is recommended if the distance between the output clocks and the load is over 1 ½ inch. Place the series termination resistors as close to the clock outputs as possible.
Rev 1.3, May 16, 2007 Page 8 of 9 SL2304NZ Package Outline and Package Dimensions 8-Pin TSSOP (4.4 mm) Thermal Characteristics Parameter Symbol Condition Min Typ Max Unit ș JA Still air - 110 - °C/W ș JA 1m/s air flow - 100 - °C/W Thermal Resistance Junction to Ambient ș JA 3m/s air flow - 80 - °C/W Thermal Resistance Junction to Case ș JC Independent of air flow - 35 - °C/W
Rev 1.3, May 16, 2007 Page 9 of 9 SL2304NZ Ordering Information [3] Ordering Number Marking Shippi ng Package Package Temperature SL2304NZZC-1 SL2304NZZC-1 Tube 8-pin TSSOP 0 to 70°C SL2304NZZC-1T SL2304NZZC-1 Tape and Reel 8-pin TSSOP 0 to 70°C SL2304NZZI-1 SL2304NZZI-1 Tube 8-pin TSSOP -40 to 85°C SL2304NZZI-1T SL2304NZZI-1 Tape and Reel 8-pin TSSOP -40 to 85°C SL2304NZZC-1Z SL2304NZZC-1Z Tube 8-pin TSSOP 0 to 70°C SL2304NZZC-1ZT SL2304NZZC-1Z Tape and Reel 8-pin TSSOP 0 to 70°C SL2304NZZI-1Z SL2304NZZI-1Z Tube 8-pin TSSOP -40 to 85°C SL2304NZZI-1ZT SL2304NZZI-1Z Tape and Reel 8-pin TSSOP -40 to 85°C Notes: 3. The SL2304NZ products are RoHS compliant. While SLI has reviewed all information herein for accuracy and reliability, Spectra Linear Inc. assumes no responsibility for t he use of any circuitry or for the infringement of any patents or other rights of third parties which would result from each use. Thi s product is intended for use in normal commercial applications and is not warranted not is it intended for use in life support, critical medical instruments, or any other application requiring extended temperature range, high reliability, or any other extraordinary environmental requirements unless pursuant to additional processing by Spectra Linear Inc., and an expressed written agreement by Spectra Linear Inc. Spectra Linear Inc. reserves the right to change any circuitry or specification without notice.