CDCVF857DGG

Clock Generators, PLLs, Frequency Synthesizers Overview

The CDCVF857DGG is a zero-delay PLL clock driver manufactured by Texas Instruments, designed for high-speed memory applications. It operates within a supply voltage range of 2.18 V to 2.7 V and supports a maximum output frequency of 200 MHz. The device features SSTL-2 input and output types with a 1:10 multiplication/division factor. It is housed in a 48-TSSOP package and functions within an operating temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Zero-delay phase alignment between input and output clocks
• Supports DDR/SDRAM DIMM memory interface requirements
• Integrates a phase-locked loop for clock generation

Clock Generators, PLLs, Frequency Synthesizers Applications

• DDR SDRAM DIMM clock distribution
• SDRAM DIMM clock buffering
• High-speed memory system synchronization

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'DGG' corresponds to the tube packaging format when sourcing. Confirm the manufacturer date code and RoHS compliance status, as older batches may differ from current production standards. Ensure the component is sourced from authorized distributors to avoid counterfeit parts, especially given the age of this specific package type.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a zero-delay buffer with SSTL-2 compatibility is required for DDR or SDRAM applications. Ensure the design voltage aligns with the 2.18 V to 2.7 V range. Consider the 48-TSSOP package constraints for PCB layout. Verify if the 200 MHz maximum frequency meets the system timing requirements compared to higher-speed alternatives in the family.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the CDCVF857 family of zero-delay PLL clock drivers. It shares functional similarities with variants like the CDCVF857DGGR (reel) and CDCVF857RTBT (QFN package). The DGG suffix specifically denotes the TSSOP-48 tube packaging option, distinguishing it from other physical form factors within the same electrical specification set.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Publicly confirmed substitutes include the CDCVF857DGGR and PI6CV857BAE. Verify pinout compatibility and ensure the replacement supports the same SSTL-2 I/O standards and voltage ranges before integration.