SY88923VKG

Overview

The SY88923VKG is a high-speed limiting post amplifier manufactured by Microchip Technology, housed in a 10-pin MSOP package. It supports power supply voltages ranging from 3 V to 5.5 V and operates at data rates up to 2.5 Gbps. The device features differential PECL inputs for data reception and provides differential PECL outputs. It incorporates a programmable level detect function that generates a chatter-free Loss of Signal (LOS) open collector TTL output. The component is designed for industrial operating temperatures between -40°C and +85°C.

Feature Summary

• Provides high gain and wide bandwidth amplification for fiber-optic receiver applications
• Features a programmable level detect function with adjustable sensitivity via an external resistor divider
• Generates a stable, chatter-free Loss of Signal indicator using an open collector TTL output
• Includes an active-low TTL enable input (/EN) to disable the output signal without removing the input

Applications

• Fiber-optic receivers with data rates up to 2.5Gbps
• 1.25Gbps and 2.5Gbps Gigabit Ethernet systems
• 531Mbps, 1062Mbps, and 2.12Gbps Fibre Channel links
• 622Mbps SONET networks
• 2.5Gbps SDH/SONET transmission equipment

Procurement Notes

Verify the specific ordering suffix when sourcing this component. The 'K' suffix indicates an industrial temperature range (-40°C to +85°C), while the 'G' suffix denotes a lead-free package with a NiPdAu finish. Confirm whether the required inventory consists of tube packaging or tape and reel formats, as these are distinct product variants within the same family.

Selection Notes

Select this component for designs requiring a limiting amplifier capable of quantizing noisy signals from trans-impedance amplifiers into voltage-limited waveforms. Ensure the design accommodates the necessary 50Ω load termination to VCC – 2V for the differential outputs. Verify that the PCB layout minimizes inductive runs and utilizes multiple vias for ground connections to maintain performance at high frequencies.

Part Context

This part belongs to the SY88923V series of high-speed limiting post amplifiers originally developed by Micrel, Inc., which was subsequently acquired by Microchip Technology. The series is engineered for integration into fiber-optic communication links where signal integrity must be maintained across varying amplitude conditions and noise levels.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.