The MAX3747BEUB+T is a 155Mbps to 3.2Gbps, low power SFP limiting amplifier in 10 pin μMAX package. It is multirate limiting amplifier function as data quantizer for OC-3 through OC-48 synchronous optical network (SONET), fibre channel and gigabit Ethernet optical receiver. It is pin-for-pin compatible with the SY88993V from Micrel Semiconductor, Inc. The amplifier accepts a wide range of input voltages and provides constant level, current mode logic (CML) output voltages with controlled edge speeds, output voltage is 800mVP-P and has enhanced LOS operation under overload conditions. This limiting amplifier features a programmable loss of signal detect (LOS) and an optional disable function (DISABLE) that can be combined to implement squelch. It is used in gigabit Ethernet SFP/SFF optical transceiver modules, 1G/2G fibre-channel SFP/SFF optical transceiver modules, multirate OC-3 to OC-48 FEC SFP/SFF optical transceiver modules, 10G LX4 transceiver modules.
- Supply voltage range is 2.97V to 3.63V
- Operating temperature range from -40°C to 85°C
- Gain is greater than 57dB
- Supply current is 20mA excluding CML output current & 38mA including CML output current
- Chatter free LOS with programmable threshold
- Output DISABLE function
- PECL-compatible inputs
- Input amplitude is < 10^12 BER with 2mVP-P
- Power supply noise rejection is 30dB at f < 2MHz
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