GN7152-INE3

Overview

The GN7152-INE3 is a highly integrated, low-power optical transceiver component designed for Passive Optical Network (PON) Optical Line Terminals (OLT), 10GBase-ER/ZR Ethernet, and 8.5 Gb/s Fibre Channel applications. It features an integrated Clock and Data Recovery (CDR) circuit alongside an Electro-Absorption Modulator (EAM) or Electro-Modulated Laser (EML) driver. The device supports reference-free operation at data rates of 8.5 Gb/s, 9.95 to 11.3 Gb/s, and 10.3 to 11.7 Gb/s. It operates on a single 3.3 V supply with typical power consumption of 730 mW.

Feature Summary

• Integrates a multi-rate CDR with EML/EAM laser driver for compact module design
• Provides programmable eye shaping with independent rise/fall pre-emphasis control
• Includes on-chip Automatic Power Control (APC) loop for bias regulation
• Supports digital diagnostics via I2C or SPI interface

Applications

• Passive Optical Network (PON) OLT modules
• 10GBase-ER and 10GBase-ZR Ethernet links
• 8.5 Gb/s Fibre Channel interconnects

Procurement Notes

Verify the specific suffix INE3 against current manufacturer documentation to confirm lead-free and RoHS compliance status. Confirm package type matches the required 5x5 mm 32-pin QFN footprint. Ensure the operating temperature range meets the -40°C to +95°C case requirement for the target environment.

Selection Notes

Select this component when a small form factor and low power consumption are critical for PON OLT or high-speed Ethernet designs. It is suitable for applications requiring integrated laser safety features and programmable jitter transfer bandwidth. Consider the available polarity inversion and output mute options for system flexibility.

Part Context

This part belongs to Semtech’s GN7152 series of laser drivers and transceivers. It is part of a broader portfolio including variants like GN7153B and GN7161 for different PON standards. The series targets cost-effective and space-efficient optical module implementations in access networks.

Replacement Considerations

Check for direct pin-compatible alternatives within the GN715x family, such as GN7153B or GN7154, depending on the specific PON standard (XGS-PON vs 10GEPON). Verify functional equivalence regarding supported data rates and modulation types before substitution.

FAQ

What modulation types does the GN7152 support?

The GN7152 integrates a laser driver compatible with both electro-absorption modulators (EAMs) and modulated lasers (EMLs).

How is the laser bias current controlled?

It includes an on-chip Automatic Power Control (APC) loop that adjusts the bias current to compensate for laser aging and environmental changes.