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MAX3761 - 622Mbps Limiting Amplifiers

General Description

The MAX3761/MAX3762 limiting amplifiers, with 4mV sensitivity and PECL data outputs, are optimized for operation in low-cost, 622Mbps, LAN/ATM LAN fiber optics applications.

An integrated power detector senses the input signal’s amplitude.

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MAX3761/MAX3762 19-1097; Rev 4; 8/08 EVAALVUAAILTAIOBNLEKIT Low-Power, 622Mbps Limiting Amplifiers with Chatter-Free Power Detect for LANs _______________General Description The MAX3761/MAX3762 limiting amplifiers, with 4mV sensitivity and PECL data outputs, are optimized for operation in low-cost, 622Mbps, LAN/ATM LAN fiber optics applications. An integrated power detector senses the input signal’s amplitude. A received-signal-strength indicator (RSSI) gives an analog indication of the power level, while the complementary loss-of-signal (LOS) outputs indicate if the input power level exceeds the programmed threshold level. The LOS threshold can be adjusted to detect signal amplitudes between 3mVp-p and 100mVp-p, providing a 15dB LOS adjustment in fiber optic receivers.