Preliminary SL23EP04NZ Low Jitter and Skew DC to 220 MHz Clock Buffer Key Features x DC to 220 MHz operating frequency range x Low output clock skew: 40ps-typ x Low part-to-part output skew: 80 ps-typ x 3.3V to 2.5V operation supply voltage range x Low power dissipation: x x x x - 7 mA-typ at 33MHz - 8 mA-typ at 66MHz - 13 mA-typ at 166MHz 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 Description The SL23EP04NZ 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 SL23EP04NZ products operate from DC to 220MHz. The only difference between SL23EP04-1 and SL23EP04NZ-1Z is the OE logic implementation. Refer to the Available OE Logic Configuration Table. 1 Benefits x x x x Up to four (4) distribution of input clock Low skew Low Jitter Low power dissipation Applications x x x x x x General Purpose PCI/PCI-X Clock Buffer Printers, MFPs and Digital Copiers PCs and Work Stations Routers, Switchers and Servers Datacom and Telecom High-Speed Digital Embeded Systems Block Diagram Rev 1.1, April 16, 2007 Page 1 of 12 2200 Laurelwood Road, Santa Clara, CA 95054 Tel: (408) 855-0555 Fax: (408) 855-0550 www.SpectraLinear.com SL23EP04NZ Pin Configuration 8-Pin TSSOP Pin Description Pin Number Pin Name Pin Type 1 CLKIN 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 to 2.5V +/-10% Power Supply 7 CLK3 Power Buffered Clock Output 3 8 CLK4 Input Buffered Clock Output 4 Rev 1.1, April 16, 2007 Pin Description Reference Clock Input Page 2 of 12 SL23EP04NZ General Description Output Clock Skew The SL23EP04NZ is a low skew, jitter and power fanout clock distribution 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. All outputs should drive the similar load to achieve outputto-output skew and input-to-output delay specifications as given in the switching electrical tables. Input and output Frequency Range The input and output frequency is the same (1x) for SL23EP04NZ-1 and SL23EP04NZ-1Z. The products operate from DC to 220MHz clock range with up to 30pF output loads at each output. The SL23EP04 is designed to operate from 3.3V+/-10% to 2.5V+/-10% VDD power supply range. An internal on-chip voltage regulator is used to provide to constant power supply of 1.8V in the core, leading to a consistent and stable electrical performance in terms of skew and jitter. The SL23EP04NZ I/O is powered by using VDD. OE (Output Enable) Function Contact SLI for 1.8V power supply Fan-Out Buffer and ZDB products. The only difference between SL23EP04-1 and SL23EP04NZ-1Z is the OE logic implementation. When OE=0, SL23EP04NZ-1 outputs are disabled and outputs are at Logic Low. In the case of SL23EP04NZ-1Z the outputs are at High-Z. Refer to the Available OE Logic Configuration Table. 1 below. Power Supply Range (VDD) CLKIN (Pin-1) OE (Pin-2) SL2304NZ-1 CLKOUT [1:4] SL2304NZ-1Z CLKOUT [1:4] Low Low Low High-Z High Low Low High-Z Low High Low Low High High High High Table 1. Available SL23EP04 CLKIN and OE Logic Configurations Rev 1.1, April 16, 2007 Page 3 of 12 SL23EP04NZ 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 – 260 °C 2000 – V Soldering Temperature ESD Rating (Human Body Model) MIL-STD-883, Method 3015 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 Operating Voltage Symbol VDD Condition VDD+/-10% Min Typ Max Unit 2.97 3.3 3.63 V – 70 °C Operating Temperature TA Ambient Temperature 0 Input Capacitance VIH Pins 1 and 2 – 5 7 pF Output Capacitance COUT Pins 3, 5, 7 and 8 – 3 5 pF CL Pins 3, 5, 7 and 8 – – 30 pF Load Capacitance DC 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 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 Output Low Voltage VOL IOL=12mA – – 0.5 V Output High Voltage VOH IOH=-12mA VDD-0.9 – – 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=166MHz CL=0 (No load at outputs) – 13 19 mA Rev 1.1, April 16, 2007 Page 4 of 12 SL23EP04NZ 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 Output Frequency Range Symbol Condition Min Typ Max Unit FOUT1 CL=15pF 0 - 220 MHz FOUT2 CL=30pF 0 - 180 MHz Input Duty Cycle DC1 Measured at VDD/2 20 50 80 % Output Duty Cycle DC2 CL=15pF, Fout=166 MHz Measured at VDD/2 45 50 55 % Output Duty Cycle DC3 CL=15pF, Fout=166 MHz Measured at VDD/2 45 50 55 % Output Rise Time tr CL=15pF, measured at 0.8V to 2.0V – – 1.4 ns Output Fall Time tf CL=15pF, all versions, measured at 0.8V to 2.0V – – 1.4 ns CLKIN=66MHz, CL=15pF 5 – – ns CLKIN=140MHz, CL=15pF 2 – – ns CLKIN High or Low Time tHL Output to Output Skew SKW1 Measured at VDD/2 and Outputs are equally loaded – 40 90 ps Part to Part Skew SKW2 Measured at VDD/2 and Outputs are equally loaded – 80 150 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) – 50 100 ps Cycle-to-Cycle Jitter CCJ2 CLKIN=166MHz and CL=0 (No Load) – 40 80 ps Rev 1.1, April 16, 2007 Page 5 of 12 SL23EP04NZ 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 Operating Voltage VDD Condition Min Typ Max Unit VDD+/-10% 2.97 3.3 3.63 V -40 – 85 °C Operating Temperature TA Ambient Temperature Input Capacitance VIH Pins 1 and 2 – 6 8 pF Output Capacitance COUT Pins 3, 5, 7 and 8 – 4 6 pF CL Pins 3, 5, 7 and 8 – – 25 pF Load Capacitance DC 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 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 Output Low Voltage VOL IOL=12mA – – 0.5 V Output High Voltage VOH IOH=-12mA VDD-0.9 – – 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=166MHz CL=0 (No load at outputs) – 14 20 mA 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 Output Frequency Range Symbol Condition Min Typ Max Unit FOUT1 CL=15pF 0 - 200 MHz FOUT2 CL=30pF 0 - 166 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=166 MHz Measured at VDD/2 45 50 55 % Output Rise Time tr CL=25pF, measured at 0.8V to 2.0V – – 1.6 ns Rev 1.1, April 16, 2007 Page 6 of 12 SL23EP04NZ 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 CLKIN High or Low Time tf tHL CL=25pF, measured at 0.8V to 2.0V – – 1.6 ns CLKIN=66MHz, CL=15pF 5 – – ns 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) – 60 120 ps Cycle-to-Cycle Jitter CCJ2 CLKIN=133MHz and CL=0 (No Load) – 50 100 ps Operating Conditions (C-Grade and VDD=2.5V) Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C Description Operating Voltage Symbol VDD Condition VDD+/-10% Min Typ Max Unit 2.25 2.5 2.75 V – 70 °C Operating Temperature TA Ambient Temperature 0 Input Capacitance VIH Pins 1 and 2 – 5 7 pF Output Capacitance COUT Pins 3, 5, 7 and 8 – 3 5 pF CL Pins 3, 5, 7 and 8 – – 30 pF Load Capacitance DC Electrical Characteristics (C-Grade and VDD=2.5V) Unless otherwise stated VDD= 2.5V+/- 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 – – 0.7 V Input High Voltage VINH CLKIN and OE 1.7 – 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 Output Low Voltage VOL IOL=8mA – – 0.3 V Output High Voltage VOH IOH=-8mA VDD-0.6 – – V Power Supply Current IDD1 CLKIN=33MHz CL=0 (No load at outputs) – 6.5 9.0 mA Power Supply Current IDD2 CLKIN=66MHz CL=0 (No load at outputs) – 9 13 mA Power Supply Current IDD3 CLKIN=166MHz CL=0 (No load at outputs) – 12 18 mA Rev 1.1, April 16, 2007 Page 7 of 12 SL23EP04NZ Switching Electrical Characteristics (C-Grade and VDD=2.5V) Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range 0 to +70°C Description Output Frequency Range Symbol Condition Min Typ Max Unit FOUT1 CL=15pF 0 - 180 MHz FOUT2 CL=30pF 0 - 140 MHz Input Duty Cycle DC1 Measured at VDD/2 20 50 80 % Output Duty Cycle DC2 CL=15pF, Fout=66MHz Measured at VDD/2 45 50 55 % Output Duty Cycle DC3 CL=15pF, Fout=166MHz Measured at VDD/2 45 50 55 % Output Rise Time tr CL=15pF, measured at 0.6V to 1.8V – – 1.6 ns Output Fall Time tf CL=15pF, measured at 0.6V to 1.8V – – 1.6 ns CLKIN=66MHz, CL=15pF 5 – – ns CLKIN=140MHz, CL=15pF 2 – – ns CLKIN High or Low Time tHL 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 4.2 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 DC Electrical Characteristics (I-Grade and VDD=2.5V) Unless otherwise stated VDD= 2.5V+/- 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 – – 0.7 V Input High Voltage VINH CLKIN and OE 1.7 – 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 Output Low Voltage VOL IOL=8mA – – 0.3 V Output High Voltage VOH IOH=-8mA VDD-0.6 – – 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) – 10 14 mA Power Supply Current IDD3 CLKIN=166MHz CL=0 (No load at outputs) – 14 20 mA Rev 1.1, April 16, 2007 Page 8 of 12 SL23EP04NZ Switching Electrical Characteristics (I-Grade and VDD=2.5V) Unless otherwise stated VDD= 2.5V+/- 10%, CL=15pF and Ambient Temperature range -40 to +85°C Description Symbol Output Frequency Range FOUT1 FOUT2 Condition Min Typ Max Unit CL=15pF 0 - 180 MHz CL=30pF 0 - 140 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=166 MHz Measured at VDD/2 45 50 55 % Output Rise Time tr CL=25pF, measured at 0.6V to 1.8V – – 1.6 ns Output Fall Time tf CL=25pF, measured at 0.6V to 1.8V – – 1.6 ns CLKIN=66MHz, CL=15pF 5 – – ns CLKIN=140MHz, CL=15pF 2 – – ns CLKIN High or Low Time tHL 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 4.2 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 Rev 1.1, April 16, 2007 Page 9 of 12 SL23EP04NZ 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 1.1, April 16, 2007 Page 10 of 12 SL23EP04NZ Package Outline and Package Dimensions 8-Pin TSSOP (4.4 mm) Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case Rev 1.1, April 16, 2007 Symbol Condition Min Typ Max Unit ș JA Still air - 110 - °C/W ș JA 1m/s air flow - 100 - °C/W ș JA 3m/s air flow - 80 - °C/W ș JC Independent of air flow - 35 - °C/W Page 11 of 12 SL23EP04NZ Ordering Information [3] Ordering Number Marking Shipping Package Package Temperature SL23EP04NZZC-1 SL23EP04NZZC-1 Tube 8-pin TSSOP 0 to 70°C SL23EP04NZZC-1T SL23EP04NZZC-1 Tape and Reel 8-pin TSSOP 0 to 70°C SL23EP04NZZI-1 SL23EP04NZZI-1 Tube 8-pin TSSOP -40 to 85°C SL23EP04NZZI-1T SL23EP04NZZI-1 Tape and Reel 8-pin TSSOP -40 to 85°C SL23EP04NZZC-1Z SL23EP04NZZC-1Z Tube 8-pin TSSOP 0 to 70°C SL23EP04NZZC-1ZT SL23EP04NZZC-1Z Tape and Reel 8-pin TSSOP 0 to 70°C SL23EP04NZZI-1Z SL23EP04NZZI-1Z Tube 8-pin TSSOP -40 to 85°C SL23EP04NZZI-1ZT SL23EP04NZZI-1Z Tape and Reel 8-pin TSSOP -40 to 85°C Notes: 3. The SL23EP04NZ products are RoHS compliant. While SLI has reviewed all information herein for accuracy and reliability, Spectra Linear Inc. assumes no responsibility for the use of any circuitry or for the infringement of any patents or other rights of third parties which would result from each use. This 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. Rev 1.1, April 16, 2007 Page 12 of 12