MAX3747A

19-3297; Rev 0; 5/04 155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers General Description The MAX3747/MAX3747A multirate limiting amplifiers function as data quantizers for OC-3 through OC-48 synchronous optical network (SONET), Fibre-Channel, and Gigabit Ethernet optical receivers. They are pin-for-pin compatible with the SY88993V from Micrel Semiconductor, Inc. The amplifiers accept a wide range of input voltages and provide constant-level, currentmode logic (CML) output voltages with controlled edge speeds. The MAX3747 output voltage level is 500mVp-p and the MAX3747A output voltage is 800mVp-p. The MAX3747/MAX3747A limiting amplifiers feature a programmable loss-of-signal detect (LOS) and an optional disable function (DISABLE). Output disable can be used to implement squelch. The MAX3747/MAX3747A are available in a 3mm, 10-pin µMAX® package ideal for small form-factor receivers. ♦ 155Mbps to 3.2Gbps Operation ♦ >57dB of Gain for the MAX3747 and MAX3747A ♦ <10-12 BER with 2mVP-P Input Amplitude ♦ 18mA Supply Current ♦ Chatter-Free LOS with Programmable Threshold ♦ Output DISABLE Function ♦ PECL-Compatible Inputs Features ♦ Pin Compatible with Micrel SY88993V MAX3747/MAX3747A Ordering Information PART TEMP RANGE -40°C to +85°C -40°C to +85°C PINPACKAGE 10 µMAX 10 µMAX PKG CODE U10C-4 U10C-4 Applications 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 Transceive...