SP Amp Limiting Amp Single 10-Pin uMAX

The MAX3747A/MAX3747B 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, current-mode logic (CML) output voltages with controlled edge speeds. The MAX3747A/MAX3747B output voltages are 800mVP-P. The MAX3747B has enhanced LOS operation under overload conditions. The MAX3747A/MAX3747B limiting amplifiers feature a programmable loss-of-signal detect (LOS) and an optional disable function (DISABLE) that can be combined to implement squelch. The MAX3747A/MAX3747B are available in a 3mm, 10-pin µMAX package ideal for small form-factor receivers.

• Pin Compatible with Micrel SY88993V
• 155Mbps to 3.2Gbps Operation
• > 57dB of Gain
• <>^-12 BER with 2mV_P-P Input Amplitude
• 18mA Supply Current
• Chatter-Free LOS with Programmable Threshold
• Output DISABLE Function
• PECL-Compatible Inputs