HMC842LC4BTR-R5

Overview

The HMC842LC4BTR-R5 is a 1:2 fanout buffer designed for high-speed data transmission rates up to 45 Gbps and clock frequencies up to 28 GHz. It features independent programmable output swing for each channel, supporting 400 to 1200 mVp-p differential signals. The device supports both single-ended and differential operation with less than 500 fs additive RMS jitter. Power consumption is 465 mW, and it utilizes a 24-lead 4x4mm SMT package.

Feature Summary

• Supports data transmission rates up to 45 Gbps
• Independent programmable output swing per channel
• Low additive RMS jitter performance
• Fast rise and fall times

Applications

• OC-768 and SDH STM-256 equipment
• RF ATE applications
• Short, intermediate, and long haul fiber optic applications
• Broadband test and measurement
• Serial data transmission up to 45 Gbps

Procurement Notes

Verify the specific suffix R5 indicates reel packaging when sourcing. Confirm current availability status as some distributors list this component as obsolete or limited supply. Ensure compatibility with existing board layouts requiring a 24-lead 4x4mm SMT package. Cross-reference datasheet revisions to ensure functional equivalence with legacy designs.

Selection Notes

Select this component for applications requiring high-speed clock distribution or signal buffering at data rates up to 45 Gbps. Consider its programmable output voltage range if signal integrity optimization across different loads is required. Evaluate power consumption constraints given the 465 mW specification. Verify that the 28 GHz clock frequency capability meets system timing requirements.

Part Context

The HMC842LC4BTR-R5 belongs to the HMC842 series of fanout buffers manufactured by Analog Devices Inc. It is part of the broader portfolio of high-speed logic ICs and clock drivers designed for demanding telecommunications and test instrumentation environments. The LC4B variant specifies the package type and operational characteristics within this family.

Replacement Considerations

Public confirmed substitute part number: HMC850LC3TR-R5.