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The SY88813V 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 SY88813V quantizes these signals and outputs PECL level waveforms.
The SY88813V operates from a single +3.3V or +5V power supply, over temperatures ranging from 40°C to +85°C. With its wide bandwidth and high gain, signals with data rates up to 155Mbps and as small as 5mVPP can be amplified to drive devices with PECL inputs.
The SY88813V generates a PECL signal-detect output. 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 deasserts low otherwise. /EN deasserts the true output signal without removing the input signal. Typically 4.6dB SD hysteresis is provided to prevent chattering.
SY88813V Maximum Ratings
Supply Voltage (VCC) ...................................... 0V to +7.0V Input Voltage (DIN, /DIN) .......................................0 to VCC Output Current (IOUT) Continuous .............................................................50mA Surge ................................................................... 100mA /EN Voltage ........................................................... 0 to VCC VREF Current ........................................ 800A to +500A SDLVL Voltage ........................................................0 to VCC Lead Temperature (soldering, 20 sec.) .................. +260°C Storage Temperature (TS) .................... 55°C to +125°C
SY88813V Features
Single 3.3V or 5V power supply Up to 155Mbps operation Low noise PECL data outputs Chatter-free PECL Signal Detect (SD) output TTL /EN input Programmable SD level set (SDLVL) Available in a tiny 10-pin MSOP (3mm) package
SY88813V Typical Application
155Mbps SONET/SDH Small form factor transceivers High-gain line driver and line receiver