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IMIZ9972

Part Number	IMIZ9972
Manufacturer	Cypress Semiconductor
Description	3.3V/ 125-MHz/ Multi-Output Zero Delay Buffer
Published	Apr 5, 2005
Detailed Description	Z9972 3.3V, 125-MHz, Multi-Output Zero Delay Buffer Features • • • • • • • • • • • • Output frequency up to 125 MHz 12 ...
Datasheet	IMIZ9972 PDF File

Overview

Z9972 3.
3V, 125-MHz, Multi-Output Zero Delay Buffer Features • • • • • • • • • • • • Output frequency up to 125 MHz 12 clock outputs: frequency configurable 350 ps max output-to-output skew Configurable output disable Two reference clock inputs for dynamic toggling Oscillator or crystal reference input Spread Spectrum-compatible Glitch-free output clocks transitioning 3.
3V power supply Pin-compatible with MPC972 Industrial temperature range: –40°C to +85°C 52-pin TQFP package Table 1.
Frequency Table[1] VCO_SEL FB_SEL2 FB_SEL1 FB_SEL0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 FVCO 8x 12x 16x 20x 16x 24x 32x 40x 4x 6x 8x 10x 8x 12x 16x 20x Note: 1.
x = the reference input frequency, 200 MHz < FVCO < 480 MHz.
Block Diagram XIN XOUT VCO_SEL PLL_EN REF_SEL D Q TCLK0 TCLK1 TCLK_SEL FB_IN D Q Sync Frz 0 1 Phase Detector LPF VCO 0 1 Sync Frz QA0 QA1 QA2 QA3 QB0 QB1 FB_SEL2 QB2 QB3 Pin Configuration SELB1 SELB0 SELA1 SELA0 QA3 VDDC QA2 VSS QA1 VDDC QA0 VSS VCO_SEL 52 51 50 49 48 47 46 45 44 43 42 41 40 VSS MR#/OE SCLK SDATA FB_SEL2 PLL_EN REF_SEL TCLK_SEL TCLK0 TCLK1 XIN XOUT VDD 1 2 3 4 5 6 7 8 9 10 11 12 13 39 38 37 36 35 34 33 32 31 30 29 28 27 VSS QB0 VDDC QB1 VSS QB2 VDDC QB3 FB_IN VSS FB_OUT VDDC FB_SEL0 MR#/OE Power-On Reset SELA(0,1) SELB(0,1) SELC(0,1) FB_SEL(0,1) SCLK SDATA INV_CLK 2 2 2 2 /4, /6, /8, /10 Sync Pulse Data Generator D Q /2 0 1 D Q D Q /4, /6, /8, /12 /4, /6, /8, /10 /2, /4, /6, /8 D Q Sync Frz Z9972 QC0 QC1 Sync Frz Sync Frz Sync Frz QC2 QC3 FB_OUT 14 15 16 17 18 19 20 21 22 23 24 25 26 SYNC FB_SEL1 SYNC VSS QC0 VDDC QC1 SELC0 SELC1 QC2 VDDC QC3 VSS INV_CLK Output Disable Circuitry 12 Cypress Semiconductor Corporation Document #: 38-07088 Rev.
*D • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 Revised December 21, 2002 Z9972 Pin Descriptions Pin 11 12 9 10 44, 46, 48, 50 32, 34, 36, 38 16, 18, 21, 23 29 Name XIN XOUT TCLK0 TCLK1...

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