Description The SY88883V low-power, limiting post amplifier is designed for use in fiber optic receivers. The device connects 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 SY88883...
SY88883V: Description The SY88883V low-power, limiting post amplifier is designed for use in fiber optic receivers. The device connects to typical transimpedance amplifiers (TIAs). The linear signal output...
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The SY88883V low-power, limiting post amplifier is designed for use in fiber optic receivers. The device connects 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 SY88883V quantizes these signals and outputs typically 800mVpp voltage-limited waveforms.
The SY88883V operates from a single +3.3V±10% or +5V±10% power supply, over the industrial temperature range of 40°C to +85°C. With its wide bandwidth and high-gain, signals with data rates up to 3.2Gbps and as small as 10mVpp can be amplified to drive devices with CML inputs or AC-coupled PECL inputs.
The SY88883V generates a signal detect (SD) open-collector TTL output with internal 5k pull-up resistor. A programmable signal detect level set pin (SDLVL) sets the sensitivity of the input amplitude detection. SD asserts high if the input amplitude rises above the threshold set by SDLVL and de-asserts low otherwise. Typically 4.6dB SD hysteresis is provided to prevent chattering. All support documentation can be found on Micrel's web site at www.micrel.com.