4-Channel Interconnect Mux/Demux ICs
Description
19-1534; Rev 1; 10/99
MAX3831/MAX3832
+3.
3V, 2.
5Gbps, SDH/SONET, 4-Channel Interconnect Mux/Demux ICs with Clock Generator
General Description
The MAX3831/MAX3832 are 4:1 multiplexers (muxes) and 1:4 demultiplexers (demuxes) with automatic channel assignment.
Operating from a single +3.
3V supply, the mux receives four parallel, 622Mbps SDH/SONET channels.
These channels are bit interleaved to generate a serial data stream of 2.
488Gbps for interfacing to an optical or an electrical driver.
A 10-bit-wide elastic buffer tolerates up to ±7.
5ns skew between any parallel data input and the reference clock.
An external 155MHz reference clock is required for the on-chip PLL to synthesize a high-frequency 2.
488GHz clock for timing the outgoing data streams.
The MAX3831/MAX3832’s demux receives 2.
488Gbps serial data and the 2.
488GHz clock from an external clock/data recovery device (MAX3876), converting it to four 622Mbps LVDS outputs.
The MAX3831 provides a 622MHz LVDS clock output, and t...
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