CY25819 Spread Spectrum Clock Generator Spread Spectrum Clock Generator Features Applications n 8- to 32-MHz input frequency range n Printers and MFPs n CY25819: 16 MHz to 32 MHz n LCD panels and notebook PCs n Separate modulated and unmodulated clocks n Digital copiers n Accepts clock, crystal, and resonator inputs n PDAs n Down spread modulation n Automotive n Power-down function n CD-ROM, VCD, and DVD n Low-power dissipation n Networking and LAN/WAN p CY25819 = 36 mW typ at 16 MHz n Scanners p CY25819 = 63 mW typ at 32 MHz n Modems n Low cycle-to-cycle jitter n Embedded digital systems p SSCLK = 250 ps typ p REFOUT = 275 ps typ Benefits n Available in 8-pin (150 mil) SOIC package n Peak electromagnetic interference (EMI) reduction by 8 dB to 16 dB n Fast time to market n Cost reduction Block Diagram 300K REFERENCE PD and LF XIN/CLKIN 1 CP DIVIDER 8 XOUT VCO MODULATION VCO COUNTER CONTROL 7 VDD DIVIDER 4 SSCLK INPUT and DECODER MUX 5 REFCLK 2 VSS 3 6 PD S0 Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document : 38-07362 Rev. *E Revised May 26, 2014CY25819 Contents Pin Configuration .............................................................3 Ordering Information ........................................................ 9 Pin Description .................................................................3 Ordering Code Definitions ........................................... 9 Overview ............................................................................4 Package Drawing and Dimensions ............................... 10 Input Frequency Range and Selection ...........................4 Acronyms ........................................................................11 Spread% Selection ...........................................................4 Document Conventions ................................................. 11 3-Level Digital Inputs .......................................................5 Units of Measure ....................................................... 11 Modulation Rate ................................................................5 Document History Page ................................................. 12 Maximum Ratings .............................................................6 Sales, Solutions, and Legal Information ...................... 13 DC Electrical Characteristics ..........................................6 Worldwide Sales and Design Support ....................... 13 Timing Electrical Characteristics ....................................6 Products ....................................................................13 Characteristics Curves ....................................................7 PSoC Solutions ......................................................... 13 SSCG Profiles ...................................................................8 Application Schematic .....................................................9 Document : 38-07362 Rev. *E Page 2 of 13