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ICS8430DY-111 Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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ICS8430DY-111 Datasheet(HTML) 1 Page - Integrated Circuit Systems |
1 / 16 page 8430DY-111 www.icst.com/products/hiperclocks.html REV. F JUNE 1, 2005 1 PRELIMINARY Integrated Circuit Systems, Inc. ICS8430-111 700MHZ, LOW JITTER DIFFERENTIAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER GENERAL DESCRIPTION The ICS8430-111 is a general purpose, dual out- put high frequency synthesizer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The CLK, nCLK pair can accept most standard differential input lev- els. The single ended TEST_CLK input accepts LVCMOS or LVTTL input levels and translates them to 3.3V LVPECL levels. The VCO operates at a frequency range of 200MHz to 700MHz. With the output configured to divide the VCO frequency by 2, output frequency steps as small as 2MHz can be achieved using a 16MHz differential or single ended reference clock. Out- put frequencies up to 700MHz can be programmed using the serial or parallel interfaces to the configuration logic. The low jitter and frequency range of the ICS8430-111 makes it an ideal clock generator for most clock tree applications. BLOCK DIAGRAM PIN ASSIGNMENT FEATURES • Dual differential 3.3V LVPECL output • Selectable 14MHz to 27MHz differential CLK, nCLK or TEST_CLK input • CLK, nCLK accepts any differential input signal: LVPECL, LVHSTL, LVDS, SSTL, HCSL • TEST_CLK accepts the following input types: LVCMOS, LVTTL • Output frequency range up to 700MHz • VCO range: 200MHz to 700MHz • Parallel or serial interface for programming counter and output dividers • Cycle-to-cycle jitter: 25ps (maximum) • 3.3V supply voltage • 0°C to 70°C ambient operating temperature • Industrial termperature information available upon request VCO_SEL CLK_SEL TEST_CLK CLK S_LOAD S_DATA S_CLOCK nP_LOAD M0:M8 N0:N2 VCO PLL FOUT0 nFOUT0 FOUT1 nFOUT1 TEST ÷ N CONFIGURATION INTERFACE LOGIC ÷ M 0 1 0 1 ÷ 16 PHASE DETECTOR ÷ 2 HiPerClockS™ ICS nCLK MR 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, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice. 32 31 30 29 28 27 26 25 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 CLK TEST_CLK CLK_SEL VCCA S_LOAD S_DATA S_CLOCK MR M5 M6 M7 M8 N0 N1 N2 VEE 32-Lead LQFP 7mm x 7mm x 1.4mm package body Y Package Top View ICS8430-111 |
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