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19-4774; Rev 1; 4/99
+3.3V, 622Mbps, SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs
General Description
The MAX3690 serializer is ideal for converting 8-bitwide, 77Mbps parallel data to 622Mbps serial data in ATM and SDH/SONET applications. Operating from a single +3.3V supply, this device accepts TTL clock and data inputs, and delivers a 3.3V differential PECL serialdata output. A fully integrated PLL synthesizes an internal 622MHz serial clock from a low-speed crystal reference clock (77.76MHz, 51.84MHz, or 38.88MHz). The MAX3690 is available in the extended-industrial temperature range (-40°C to +85°C) in a 32-pin TQFP package.
____________________________Features
o Selectable Reference Clock Frequency: 77.76MHz, 51.84MHz, or 38.88MHz o Single +3.