SY88813VKC

Overview

The SY88813VKC is a low-power limiting post amplifier designed for fiber-optic receivers, operating from a single +3.3V or +5V power supply. It supports data rates up to 155Mbps and amplifies input signals as small as 5mVpp to drive PECL inputs. The device features a TTL /EN input, a programmable Signal Detect (SD) level set pin (SDLVL), and provides typically 4.6dB SD hysteresis to prevent chattering. It is housed in a 10-pin MSOP package.

Feature Summary

• Amplifies low-amplitude signals from transimpedance amplifiers into PECL level waveforms
• Generates a chatter-free PECL signal-detect output with programmable sensitivity
• Includes a TTL enable input that deasserts the true data output without removing the input signal

Applications

• 155Mbps SONET/SDH systems
• Small form factor transceivers
• High-gain line driver and line receiver circuits

Procurement Notes

Verify the specific ordering suffix 'VKC' against current manufacturer documentation to confirm lead availability and exact marking codes. Confirm RoHS compliance status and packaging type requirements prior to procurement. Ensure the commercial temperature range meets system specifications.

Selection Notes

Select this component when interfacing with typical transimpedance amplifiers requiring PECL outputs. Ensure the upstream TIA is placed close to the input pins to maintain performance. Verify that the required signal detect threshold can be achieved using the SDLVL pin configuration within the VCC and VREF voltage limits.

Part Context

This part belongs to the SY88813V series of low-power limiting post amplifiers manufactured by Micrel, now Microchip Technology. The series includes variants such as SY88813VKG for industrial temperature ranges and tape-and-reel options like SY88813VKCTR.

Replacement Considerations

SY88813VKG: Industrial temperature range variant with Pb-Free/NiPdAu finish.

FAQ

How is the signal detect threshold configured?

The threshold is set by applying a voltage between VCC and VREF to the SDLVL pin.

What is the minimum input signal amplitude supported?

The device can amplify signals as small as 5mVpp.