SY89826L

Micrel, Inc. 3.3V 1GHz PRECISION 1:22 LVDS FANOUT BUFFER/TRANSLATOR WITH 2:1 INPUT MUX Precision Edge® SY89826L ® Precision Edge SY89826L FEATURES s High-performance, 1GHz LVDS fanout buffer/ translator s 22 differential LVDS output pairs s Guaranteed AC parameters over temperature and voltage: > 1GHz fMAX < 50ps within device skew < 400ps tr / tf time s Low jitter performance < 1ps (rms) cycle-to-cycle jitter < 1ps (pk-pk) total jitter s 2:1 mux input accepts LVDS and LVPECL 3.3V supply voltage s LVDS input includes internal 100Ω termination s Output enable function s Available in a 64-Pin EPAD-TQFP Precision Edge® DESCRIPTION APPLICATIONS s Enterprise networking s High-end servers s Communications The SY89826L is a precision fanout buffer with 22 differential LVDS (Low Voltage Differential Swing) output pairs. The part is designed for use in low voltage 3.3V applications that require a large number of outputs to drive precisely aligned, ultra low-skew signals to their destination. The input is multiplexed from either LVDS or LVPECL (Low Voltage Positive Emitter Coupled Logic) by the CLK_SEL pin. The OE (Output Enable) is synchronous so that the outputs will only be enabled/disabled when they are already in the LOW state. This avoids any chance of generating a runt clock pulse when the device is enabled/disabled as can happen with an asynchronous control. The SY89826L features a low pin-to-pin skew of less than 50ps—performance previously unachievable in a s...