Compact, 155Mbps to 3.2Gbps Multirate SFF/SFP Limiting Amplifier Functions as a Data Quantizer for SONET, Fibre Channel, and Gigabit Ethernet Optical Receivers
The MAX3748/MAX3748A/MAX3748B multirate limiting
amplifiers function as a data quantizer for SONET, Fibre
Channel, and Gigabit Ethernet optical receivers. The
amplifier accepts a wide range of input voltages and provides
constant-level current-mode logic (CML) output
voltages with controlled edge speeds.
A received-signal-strength indicator (RSSI) is available
when the MAX3748/MAX3748A are combined with the
MAX3744 SFP transimpedance amplifier (TIA). A receiver
consisting of the MAX3744 and the MAX3748/MAX3748A
can provide up to 19dB RSSI dynamic range. Additional
features include a programmable loss-of-signal (LOS)
detect, an optional disable function (DISABLE), and an
output signal polarity reversal (OUTPOL). Output disable
can be used to implement squelch.
The combination of the MAX3748/MAX3748A and the
MAX3744 allows for the implementation of all the small-form-factor SFF-8472 digital diagnostic specifications
using a standard 4-pin TO-46 header. The MAX3748B has
an improved common-mode output for reduced electromagnetic
interference. The MAX3748B does not have
RSSI functionality. The MAX3748/MAX3748A/MAX3748B
are packaged in a 3mm x 3mm, 16-pin thin QFN package
with an exposed pad.
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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