PCKV857ADGG,512

Overview

The PCKV857ADGG,512 is a differential clock driver manufactured by NXP Semiconductors. It operates within a frequency range of 100 MHz to 250 MHz and features a 1-to-10 distribution ratio. The device utilizes an integrated Phase-Locked Loop (PLL) to synchronize outputs with the input signal via an external feedback pin. It accepts SSTL_2 differential inputs and provides ten SSTL_2 differential outputs. Power is supplied through separate AVDD (2.3 V to 2.7 V) and VDDQ (2.3 V to 2.7 V) pins. The component is housed in a 48-pin TSSOP package.

Feature Summary

• Integrated PLL for zero-delay buffering and synchronization
• 1-to-10 differential clock distribution capability
• SSTL_2 compatible inputs and outputs
• Low skew (< 150 ps) and jitter (< 75 ps)

Applications

• DDR SDRAM clock distribution
• High-speed memory systems
• SDRAM controller interfaces

Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to confirm package type and temperature range. Confirm availability status as older Philips/NXP product data sheets may indicate superseded or discontinued status. Ensure compatibility with required SSTL_2 voltage levels before procurement.

Selection Notes

Select this component when a low-skew, high-frequency differential clock buffer is required for DDR applications. Ensure the design supports the 48-pin TSSOP footprint. Verify that the system power supply can provide separate analog (AVDD) and digital (VDDQ) rails within the 2.3 V to 2.7 V range.

Part Context

This part belongs to the PCKV857A series of clock drivers. It was originally published under Philips Semiconductors branding before the division became NXP Semiconductors. The datasheet indicates it supersedes earlier versions from December 2002.

Replacement Considerations

Check for updated NXP families such as the PCKV857BS if newer packaging or performance specifications are required. Verify electrical compatibility with existing SSTL_2 designs before substituting.