SY88353BLMG-TR

Special Purpose Amplifiers Overview

The SY88353BLMG-TR is a single-channel limiting post amplifier designed for fiber-optic receivers, specifically optimized for WDM applications utilizing optical amplifiers. It operates from a single +3.3V supply (range: 3.0V to 3.6V) and supports data rates from 155Mbps to 3.2Gbps. The device features low-noise CML outputs with a typical differential voltage gain of 38dB and a 3dB bandwidth of 2.0GHz. It includes a programmable decision threshold adjustable from 20% to 80% crossing via external DC voltage, and a chatter-free open-collector TTL loss-of-signal output.

Special Purpose Amplifiers Feature Summary

• Features a programmable decision threshold pin allowing adjustment of the signal crossing point from 20% to 80% for BER optimization in noisy environments.
• Includes a programmable Loss-of-Signal level set pin that configures input amplitude detection sensitivity using an external resistor.
• Provides a chatter-free open-collector TTL loss-of-signal output with approximately 3.3dB electrical hysteresis to maintain output stability.
• Designed to interface directly with transimpedance amplifiers, accepting small input signals as low as 10mVpp.

Special Purpose Amplifiers Applications

• WDM systems employing EDFAs or Raman amplifiers
• Low-gain TIA interfaces in optical transceivers
• SONET/SDH networks including OC-3/12/24/48 and STM1/4/8/16
• Gigabit Ethernet and Fibre Channel (1X and 2X)

Special Purpose Amplifiers Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors. Confirm the MLF-16 package marking matches '353B' with the Pb-Free bar line indicator. Ensure the ordering suffix '-TR' corresponds to the tape and reel packaging format required for automated assembly processes.

Special Purpose Amplifiers Selection Notes

Select this component when designing fiber-optic receivers requiring specific optimization for amplified WDM links. The device is suitable for applications needing adjustable signal crossing points to mitigate noise unevenness between rails. It serves as a direct interface between TIAs and downstream logic devices with CML or PECL inputs.

Special Purpose Amplifiers Part Context

This part belongs to the SY88353BL series of limiting post amplifiers manufactured by Micrel, now part of Microchip Technology. It is functionally related to the SY88303BL but distinguished by its programmable decision threshold capability rather than just wide LOS detection range. Both are intended for high-speed optical networking applications.

Special Purpose Amplifiers Replacement Considerations

SY88353BLMG