SY89532L

Micrel, Inc. 3.3V, PRECISION, 33MHz to 500MHz PROGRAMMABLE LVPECL AND LVDS BUS CLOCK SYNTHESIZER PrecisPiroecnSiYsEi8o9dn5g3Ee2d/®g33eL® SY89532L SY89533L FEATURES Integrated synthesizer plus fanout buffers, clock drivers , and translator in a single 64-pin package 3.3V ±10% power supply Low jitter: <50ps cycle-to-cycle Low pin-to-pin skew: <50ps 33MHz to 500MHz output frequency range Direct interface to crystal: 14MHz to 18MHz LVPECL output (SY89532L), LVPECL/LVDS outputs (SY89533L) TTL/CMOS compatible control logic 3 independently programmable output frequency banks: 9 differential output pairs @BankB (LVPECL/LVDS) 2 differential output pairs @BankA (LVPECL) 2 differential output pairs @BankC (LVPECL) ExtVCO input allows synthesizer and crystal interface to be bypassed Available in 64-pin EPAD-TQFP Precision Edge® DESCRIPTION The SY89532 and SY89533L programmable clock synthesizer/drivers are a 3.3V, high-frequency, precision PLLbased clock driver family optimized for multi-frequency, multiprocessor server and synchronous computing applications that require the highest precision. These devices integrate the following blocks into a single monolithic IC: PLL (Phase-Lock-Loop)-based synthesizer Fanout buffers Clock generator (dividers) Logic translation (LVPECL, LVDS) This level of integration minimizes the additive jitter and part-to-part skew associated with the discrete alternative, resulting in superior system-level timing as well as reduced board space ...