SDH/SONET 4:1 serialiser

13 February 2002 Telecoms, Datacoms, Wireless, IoT

The MAX3892 from Maxim is a serialiser ideal for converting 4-bit-wide, 622 Mbps parallel data to 2,5 Gbps serial data in DWDM and SONET/SDH applications. A 4 5 4-bit FIFO allows for any static delay between the parallel output clock and parallel input clock. Delay variation up to a unit interval (UI) is allowed after reset. A fully integrated phase-locked loop (PLL) synthesises an internal 2,5 GHz serial clock from a 622 MHz, 155,5 MHz, 77,8 MHz, or 38,9 MHz reference clock. A selectable dual VCO allows superior jitter performance at both SONET and forward-error correction (FEC) data rates.

Operating from a single 3,3 V supply, this device accepts low-voltage differential-signal (LVDS) clock and data inputs for interfacing with high-speed digital circuitry, and delivers current-mode logic (CML) serial data and clock outputs. A loopback data output is provided to facilitate system diagnostic testing.

The MAX3892 is available in the extended temperature range (-40 to +85°C) in 44-pin QFN package.

CST Electronics

(011) 452 0706

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