CY29972 3.3 V, 125-MHz Multi-Output Zero Delay Buffer 3.3 V, 125-MHz Multi-Output Zero Delay Buffer Features 1 Table 1. Frequency Table Output frequency up to 125 MHz VC0 SEL FB SEL2 FB SEL1 FB SEL0 F VC0 12 Clock outputs: frequency configurable 0 000 8x 0 001 12x 350 ps max. output-to-output skew 0 010 16x Configurable output disable 0 011 20x Two reference clock inputs for dynamic toggling 0 100 16x 0 101 24x Oscillator or crystal reference input 0 110 32x Spread-spectrum-compatible 0 111 40x Glitch-free output clocks transitioning 1 000 4x 1 001 6x 3.3 V power supply 1 010 8x Pin-compatible with MPC972 1 011 10x Industrial temperature range: 40 C to +85 C 1 100 8x 1 101 12x 52-pin thin quad flat package (TQFP) package 1 110 16x 1 111 20x For a complete list of related documentation, click here. XIN Block Diagram XOUT VCO SEL PLL EN REF SEL Sync D Q QA0 Frz Phase 0 VCO TCLK0 0 QA1 Detector 1 TCLK1 1 LPF QA2 TCLK SEL QA3 FB IN Sync D Q QB0 Frz QB1 QB2 FB SEL2 QB3 MR /OE Sync D Q QC0 Frz Power-On Reset /4, /6, /8, /12 QC1 /4, /6, /8, /10 Sync 2 QC2 SELA(0,1) D Q /2, /4, /6, /8 Frz QC3 2 SELB(0,1) 0 Sync D Q FB OUT /4, /6, /8, /10 2 1 /2 Frz SELC(0,1) Sync Pulse Sync 2 D SYNC FB SEL(0,1) Q Data Generator Frz SCLK Output Disable 12 SDATA Circuitry INV CLK Note 1. x = the reference input frequency, 200 MHz < F < 480 MHz. VCO Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 38-07290 Rev. *H Revised December 3, 2014CY29972 Contents Pin Configuration .............................................................3 Acronyms ........................................................................12 Pin Description .................................................................4 Document Conventions ................................................. 12 Description ........................................................................5 Units of Measure ....................................................... 12 Glitch-Free Output Frequency Transitions ..................5 Document History Page ................................................. 13 Sync Output .................................................................6 Sales, Solutions, and Legal Information ...................... 14 Power Management ....................................................7 Worldwide Sales and Design Support ....................... 14 Absolute Maximum Ratings ............................................8 Products ....................................................................14 DC Parameters ..................................................................8 PSoC Solutions ...................................................... 14 AC Parameters ..................................................................9 Cypress Developer Community ................................. 14 Ordering Information ......................................................10 Technical Support ..................................................... 14 Ordering Code Definitions .........................................10 Package Diagram ............................................................11 Document Number: 38-07290 Rev. *H Page 2 of 14