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Philips PCK2509SL User Guide

Summary

This high-performance PCK2509SL is a phase-locked loop (PLL) clock driver designed specifically for distributing low-skew, low-jitter clock signals to synchronous DRAM (SDRAM) applications. It ensures precise frequency and phase alignment by providing up to nine derived clock outputs from a single input. The accompanying manual provides comprehensive technical specifications, including pin configurations, operational voltage compatibility (2.5V/3.3V), and detailed performance metrics for engineers integrating complex memory timing circuits into motherboards or digital system designs.

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INTEGRATED CIRCUITS

PCK2509SL 50–150 MHz 1:9 SDRAM clock driver

Product specification 2000 Dec 01

ICL03 — PC Motherboard ICs; Logic Products Group

Page Summary Contents For Philips PCK2509SL User Guide

Page 1 INTEGRATED CIRCUITS PCK2509SL 50–150 MHz 1:9 SDRAM clock driver Product specification 2000 Dec 01 ICL03 — PC Motherboard ICs; Logic Products Group
Page 2 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver FEATURES adjusted to 50 percent, independent of the duty cycle at CLK. Each bank of outputs can be enabled or di...
Page 3 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver PIN DESCRIPTIONS PIN NUMBER SYMBOL TYPE NAME, FUNCTION, and DIRECTION AGND GND Analog ground. AGND provides the ...
Page 4 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver FUNCTIONAL BLOCK DIAGRAM FBOUT SW00436 FRONT SIDE A[L]VC A[L]VC PCK2509SLA[L]VC The PLL clock distribution devic...
Page 5 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver ABSOLUTE MAXIMUM RATINGS1 In accordance with the Absolute Maximum Rating System (IEC 134) LIMITS SYMBOL PARAMETE...
Page 6 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver TIMING REQUIREMENTS Over recommended ranges of supply voltage and operating free-air temperature. SYMBOL PARAMET...
Page 7 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver ps -T -P IT ps LO LY CHARACTERISTIC CURVES AVCC = VCC = 3.3 V AVCC = VCC = 3.3 V Tamb = 25 °C Tamb = 25 °C CLOCK...
Page 8 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver PARAMETER MEASUREMENT INFORMATION INPUT 50% VCC tpe 0V FROM OUTPUT UNDER TEST 2 V 2 V OUTPUT 50% VCC VOL tftr LO...
Page 9 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1 2000 Dec 01
Page 10 Philips Semiconductors Product specification PCK2509SL50–150 MHz 1:9 SDRAM clock driver Data sheet status Data sheet Product Definition [1] status status Objective Development This data sheet contains...

Manual Details

Brand Philips
Pages 10
File Size 79.62 KB
Published July 10, 2026
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Frequently Asked Questions

How do I ensure proper operation after power-up or reference changes?

The PCK2509SL requires a stabilization time to achieve phase lock of the feedback signal.

What voltage levels are compatible with this clock driver?

It operates at 3.3 V and is input compatible with both 2.5 V and 3.3 V ranges.

Do I need to add external resistors when connecting the outputs?

No, each output has an integrated 25 Ωm series-damping resistor.

How must the PLL feedback loop be completed?

The external feedback input (FBIN) must be hard-wired to the feedback output (FBOUT).

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