SY88303BLMG

Special Purpose Amplifiers Overview

The SY88303BLMG is a low-power limiting post amplifier designed for fiber-optic receivers, manufactured by Microchip Technology. It operates from a single +3.3V power supply and supports data rates up to 3.2Gbps with input signals as small as 10mVpp. The device features wide bandwidth and high gain, converting linear TIA signals into CML-level waveforms. It includes a programmable loss-of-signal detection circuit optimized for a wide input range, providing a chatter-free open-collector TTL output. The component is housed in a 16-pin QFN package.

Special Purpose Amplifiers Feature Summary

• Generates low-noise CML data outputs suitable for driving devices with CML or PECL inputs
• Features a programmable loss-of-signal level set pin to adjust input amplitude detection sensitivity
• Provides a chatter-free open-collector TTL loss-of-signal output for system stability

Special Purpose Amplifiers Applications

• Passive Optical Networks (PON)
• Gigabit Ethernet interfaces
• Fibre Channel applications (1X and 2X)
• SONET/SDH systems (OC 3/12/24/48 – STM 1/4/8/16)

Special Purpose Amplifiers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and lead finish specifications. Ensure compatibility with industrial temperature ranges and required termination resistors for proper operation of the CML outputs and reference voltage pins.

Special Purpose Amplifiers Selection Notes

Select this component when interfacing transimpedance amplifiers with CML/PECL inputs in optical receiver designs. Consider the 16-pin QFN package for space-constrained layouts requiring effective thermal management via the exposed pad. Evaluate the programmable LOS threshold requirements against the external resistor options available for the LOSLVL pin.

Special Purpose Amplifiers Part Context

This part belongs to the SY88303 series of limiting post amplifiers originally developed by Micrel, now under Microchip Technology. The series is engineered for high-speed optical communication applications, offering robust signal quantization and noise rejection capabilities essential for maintaining signal integrity in long-reach fiber optic modules.

Special Purpose Amplifiers Replacement Considerations

SY88303BLMG-TR is the tape and reel version of this component.