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SY88149CL - PECL Limiting Post Amplifier

General Description

The SY88149CL is a high-sensitivity limiting post amplifier designed for use in fiber-optic receivers.

These devices connect to typical transimpedance amplifiers (TIAs).

The linear signal output from TIAs can contain significant amounts of noise and may vary in amplitude over time.

Key Features

  • ∑ Single 3.3V power supply ∑ Fast SD enable/disable time ∑ 622Mbps to 1.25Gbps operation ∑ Low-noise PECL data outputs ∑ High-gain SD ∑ Chatter-free Open-Collector TTL signal detect (SD) output with internal 4.75kΩ pull-up resistor ∑ TTL EN input ∑ Programmable SD level set (SDLVL) ∑ Available in a tiny 10-pin MSOP package.

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Datasheet Details

Part number SY88149CL
Manufacturer Micrel Semiconductor
File Size 301.97 KB
Description PECL Limiting Post Amplifier
Datasheet download datasheet SY88149CL Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SY88149CL 3.3V, 1.25Gbps PECL Limiting Post Amplifier w/High Gain TTL Signal Detect General Description The SY88149CL is a high-sensitivity limiting post amplifier designed for use in fiber-optic receivers. These devices connect to typical transimpedance amplifiers (TIAs). The linear signal output from TIAs can contain significant amounts of noise and may vary in amplitude over time. The SY88149CL quantizes these signals and outputs PECL level waveforms. The SY88149CL operates from a single +3.3V power supply, over temperatures ranging from –40oC to +85oC. With its wide bandwidth and high gain, signals with data rates up to 1.25Gbps, and as small as 5mVpp, can be amplified to drive devices with PECL inputs. The SY88149CL generates a high-gain signal-detect (SD) open-collector TTL output.