GN7055B-CHIP

Overview

The GN7055B-CHIP is a multi-rate burst-mode transimpedance amplifier (TIA) designed for XGS-PON and XG-PON optical line terminal (OLT) applications. It delivers high sensitivity and fast response times, exceeding standard convergence time requirements. The device features an optimized front-end for low-noise operation when paired with avalanche photodiodes (APDs). It supports data rates of 10Gbps and 2.5Gbps, providing a wide dynamic range suitable for demanding PON environments.

Feature Summary

• Multi-rate burst-mode operation supporting 10Gbps and 2.5Gbps data rates
• Optimized front-end design for low-noise performance with APD photodiodes
• Exceeds XG-PON and XGS-PON convergence time specifications
• Wide dynamic range capability for robust signal detection

Applications

• XGS-PON OLT modules
• XG-PON OLT modules
• PON ONU/OLT chipsets requiring high sensitivity

Procurement Notes

Verify the specific suffix or tape-and-reel designation against the official Semtech datasheet to ensure correct packaging and temperature grade. Confirm that the 'CHIP' designation aligns with the intended surface-mount package variant. Cross-reference the part number with authorized distributors to validate current availability and authenticity before procurement.

Selection Notes

Select this component for XGS-PON and XG-PON OLT designs requiring high-sensitivity burst-mode reception. It is specifically optimized for use with APD detectors to minimize noise. Ensure the system architecture supports the required 10Gbps and 2.5Gbps multi-rate switching speeds and meets the convergence time standards defined by ITU-T recommendations.

Part Context

This TIA belongs to Semtech's PON-X series, which provides integrated solutions for Passive Optical Networks. It complements laser drivers and CDRs to form complete chipset solutions for OLT and ONU modules. The product line focuses on cost-effective, high-performance optical interconnects for FTTH deployments.

Replacement Considerations

Check for direct pin-to-pin replacements within the GN7055 family or updated revisions. Verify compatibility with existing APD sensors and control logic. No alternative part numbers are explicitly confirmed in the provided documentation.