PCKV857ADGV,112

Overview

The PCKV857ADGV,112 is a differential clock driver and distribution device manufactured by NXP USA Inc. It operates within a frequency range of 100 MHz to 250 MHz and features a 1-to-10 output ratio. The component utilizes an integrated Phase-Locked Loop (PLL) to synchronize outputs via an external feedback pin. It accepts SSTL-2 differential inputs and provides ten pairs of SSTL_2 differential outputs. Power requirements include a VDDQ supply of 2.3 V to 2.7 V and an AVDD supply of 2.2 V to 2.7 V. The device is housed in a 48-TSSOP package with an operating temperature range of 0°C to +70°C.

Feature Summary

• 1-to-10 differential clock distribution optimized for DDR SDRAM applications
• Integrated PLL with very low skew (< 150 ps) and jitter (< 75 ps)
• SSTL_2 compatible differential input and output interfaces
• Low current power-down mode controlled by a CMOS-style PWRDWN pin

Applications

• DDR (Double Data Rate) SDRAM clock distribution
• High-speed memory system synchronization
• Zero delay buffer configurations for timing-critical circuits

Procurement Notes

Verify the specific ordering suffix '112' against official NXP documentation to confirm tape-and-reel packaging details. Confirm that the 48-TSSOP (SOT480-1) package variant matches the design requirements. Check for any superseded data sheets or engineering change notifications related to this part number before finalizing procurement plans.

Selection Notes

Select this component when a 1:10 differential clock fan-out is required for SSTL_2 compliant memory systems. Ensure the design supports the 2.3 V to 2.7 V VDDQ supply voltage. Verify that the PCB layout accommodates the 48-pin TSSOP footprint and allows for proper thermal dissipation within the 0°C to +70°C operating range.

Part Context

This device belongs to the Philips/NXP Semiconductors PCKV857 family of clock drivers. It supersedes earlier versions such as the PCKV857A without suffix or those with different packaging codes like DGG. The product data indicates it is designed to reduce signal loads on memory controllers and prevent waveform distortions in high-speed digital environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult NXP Semiconductors directly for cross-reference information or updated product line replacements.