CDCLVD1208RHDR

Overview

The CDCLVD1208RHDR is a Texas Instruments clock buffer and multiplexer featuring a 2:8 configuration. It accepts differential or single-ended inputs in LVCMOS, LVDS, or LVPECL formats and provides eight differential LVDS outputs. The device supports a maximum frequency of 800 MHz with a supply voltage range of 2.375 V to 2.625 V. It operates within an industrial temperature range of -40°C to +85°C and is housed in a 28-VQFN (5x5 mm) package.

Feature Summary

• 2:8 Multiplexing: Selects between two input sources (IN0/IN1) for distribution to eight LVDS outputs.
• Low Jitter Performance: Adds less than 300 fs RMS jitter across a 10 kHz to 20 MHz bandwidth.
• Universal Input Compatibility: Accepts LVCMOS, LVDS, and LVPECL input signals.
• Fail-Safe Design: Includes input hysteresis to prevent output oscillation when no input signal is present.

Applications

• Telecommunications and networking equipment
• Medical imaging systems
• Test and measurement devices
• Wireless communication infrastructure

Procurement Notes

Verify the specific suffix RHDR indicates the Tape & Reel packaging format as confirmed by local product data. Ensure the operating environment stays within the specified 2.375 V to 2.625 V supply range and -40°C to +85°C temperature limits. Confirm that the 28-VQFN exposed pad mounting requirements are met for proper thermal and electrical performance.

Selection Notes

Select this component when driving multiple LVDS loads from a single clock source with low skew requirements. The 2:8 ratio allows for flexible input selection via the IN_SEL pin. Ensure the input signal amplitude matches the supported LVCMOS, LVDS, or LVPECL standards. The device is suitable for applications requiring high-frequency distribution up to 800 MHz with minimal phase noise addition.

Part Context

This part belongs to the CDCLVD1208 series of low-addition-jitter LVDS buffers. The RHDR suffix specifically denotes the tape and reel packaging variant, distinct from cut tape or other packaging options. It is designed for high-performance clock distribution in compact surface-mount layouts.

Replacement Considerations

Direct substitutes include other TI 2:8 LVDS clock buffers such as the CDCLVD1208RHT or variants within the same family. Verify pin compatibility and electrical specifications before substitution.