SY88933ALKG

Overview

The SY88933ALKG is a high-sensitivity limiting post amplifier designed for fiber-optic receivers. It operates on a single 3.3V supply and connects to typical transimpedance amplifiers (TIAs). The device quantizes noisy linear signal outputs from TIAs, which may vary in amplitude over time, and outputs PECL level waveforms. Key electrical parameters include a voltage gain of 42 dB, a maximum supply voltage of 5.5 V, a minimum supply voltage of 3 V, and an operating supply current of 26 mA. It supports data rates up to 1.25 Gbps and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates TTL signal detection capability alongside standard amplification functions.
• Quantizes noisy linear signals from transimpedance amplifiers into clean PECL level waveforms.
• Operates on a single 3.3V power supply for low-power applications.

Applications

• Fiber-optic receiver circuits
• Signal conditioning after transimpedance amplifiers
• PECL output generation in optical communication systems

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct packaging. The 'KG' suffix indicates tube packaging, while 'TR' variants denote tape and reel. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure the selected variant matches the required data rate and supply voltage specifications for the target application design.

Selection Notes

Select this component when interfacing with transimpedance amplifiers that require noise quantization and PECL output formatting. It is suitable for applications demanding low power consumption via a single 3.3V supply. Consider the MSOP-10 package constraints and thermal performance within the specified operating temperature range. Verify compatibility with the upstream TIA output characteristics and downstream PECL logic requirements.

Part Context

This part belongs to the SY88933 series of limiting post amplifiers manufactured by Microchip Technology. It is specifically engineered for optical networking applications where signal integrity from photodiodes and TIAs must be restored. The series includes variants with different packaging options, such as tubes and reels, to accommodate various manufacturing needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Microchip Technology for current alternative recommendations or updated product line information.