ICS8543

PRELIMINARY Integrated Circuit Systems, Inc. ICS8543 LOW SKEW, 1-TO-4 LVDS FANOUT BUFFER FEATURES 4 LVDS outputs Designed to meet or exceed the requirements of ANSI TIA/EIA-644 Selectable differential HSTL or LVPECL clock inputs LVCMOS / LVTTL control inputs 3.3V operating supply 20 lead TSSOP 0°C to 70°C ambient operating temperature GENERAL DESCRIPTION The ICS8543 is a low skew, high performance 1-to-4 clock fanout buffer and a member of HiPerClockS™ the HiPerClockS™ family of High Performance Clock Solutions from ICS. Utilizing Low Voltage Differential Signaling (LVDS) the ICS8543 provides a low power, low noise, solution for distributing clock signals over controlled impedances of 100Ω. The ICS8543 accepts any differential input level and translates it to 3.3V LVDS output levels. ,&6 Guaranteed output and part-to-part skew characteristics www.DataSheet4U.com make the ICS8543 ideal for those applications demanding well defined performance and repeatability. BLOCK DIAGRAM CLK_EN nD Q LE HCLK nHCLK PCLK nPCLK 0 1 Q0 nQ0 Q1 nQ1 Q2 nQ2 Q3 nQ3 PIN ASSIGNMENT VEE CLK_EN CLK_SEL HCLK nHCLK PCLK nPCLK OE VEE VDD 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Q0 nQ0 VDD Q1 nQ1 Q2 nQ2 VEE Q3 nQ3 CLK_SEL ICS8543 20-Lead TSSOP G Package Top View OE The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial product characterization. Integrated Circuit Systems, Incorporate...