SY88903VKC-TR

Special Purpose Amplifiers Overview

The SY88903VKC-TR is a limiting post amplifier manufactured by Microchip Technology, housed in a 10-pin MSOP package. It supports operation with 3.3V or 5V power supplies and handles data rates up to 1.25Gbps. The device features differential PECL inputs and outputs, an open-collector TTL LOS output, and a TTL /EN input for signal control. Designed for fiber optic applications, it amplifies signals as small as 5mVpp and includes programmable level detection.

Special Purpose Amplifiers Feature Summary

• Amplifies low-amplitude signals to drive PECL input devices
• Generates chatter-free Loss-of-Signal (LOS) indication
• Allows output disable via the /EN pin without removing input
• Incorporates programmable level detection for signal loss identification

Special Purpose Amplifiers Applications

• Fiber optic receivers
• Laser diode driver and controller interfaces
• Transimpedance amplifier stages in fiber optics links

Special Purpose Amplifiers Procurement Notes

Verify the ordering suffix 'K' indicates commercial temperature range and lead finish specifications. Confirm the '-TR' suffix denotes tape and reel packaging. Ensure compatibility with the required 3.3V or 5V supply voltage and check that the 10-MSOP footprint matches the PCB layout design.

Special Purpose Amplifiers Selection Notes

Select this component for high-frequency fiber optic applications requiring signal quantization. Consider the 10-MSOP package size for space-constrained designs. Evaluate the need for programmable LOS sensitivity and the specific requirement for PECL differential signaling at data rates up to 1.25Gbps.

Special Purpose Amplifiers Part Context

This part belongs to the SY88903V family of limiting post amplifiers. It is designed to interface with transimpedance amplifiers in fiber optic networks. The device provides high gain and wide bandwidth to process noisy linear signals into voltage-limited waveforms suitable for downstream digital processing.

Special Purpose Amplifiers Replacement Considerations

SY88903VKG-TR

Special Purpose Amplifiers FAQ

How is the LOS sensitivity adjusted?

The LOS sensitivity is adjusted using the LOSLVL pin by connecting a resistor divider between VCC and VREF.

What type of output does the LOS pin provide?

The LOS pin provides an open-collector TTL output that requires a pull-up resistor for proper operation.