CY25568 Spread Spectrum Clock Generator Spread Spectrum Clock Generator LCD panels and monitors Features Digital copiers 4 to 32 MHz Input frequency range PDAs 4 to 128 MHz Output frequency range Automotive accepts clock, crystal and resonator Inputs CD-ROM, VCD and DVD 1x, 2x and 4x frequency multiplication Networking, LAN/WAN Non-modulated reference frequency output Scanners Center and down spread modulation Modems Low power dissipation Embedded digital systems 3.3 V = 52 mW-typ at 6 MHz 3.3 V = 60 mW-typ at 12 MHz Benefits 3.3 V = 72 mW-typ at 24 MHz Power-down mode Peak EMI reduction by 8 to 16dB Low cycle-to cycle jitter Fast time to market 8 MHz = 195 ps-typ Cost reduction 16 MHz = 175 ps-typ 32 MHz = 100 ps-typ Functional Description Available in 16-pin (150-mil.) SOIC package For a complete list of related documentation, click here. Applications Printers and MFPs Logic Block Diagram 300K 7 REFOUT REFERENCE 1 XIN PD and CP LF DIVIDER 8pF 16 XOUT 8pF VCO MODULATION VCO COUNTER CONTROL VDD 13 6 SSCLK1 12 VDD DIVIDER INPUT and 9 SSCLK2 DECODER LOGIC MUX 3 VSS 8 SSCLK3 1 1 1 2 VSS 11 4 5 5 4 0 FRSEL S1 SO D1 DO PD Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 38-07111 Rev. *H Revised December 1, 2017CY25568 Contents Pin Configuration .............................................................3 SSCG Profiles ........................................................... 10 Pin Definitions ..................................................................3 Application Schematic ................................................... 11 Functional Overview ........................................................3 Ordering Information ...................................................... 11 Absolute Maximum Ratings ............................................4 Ordering Code Definitions ......................................... 11 DC Electrical Characteristics ..........................................4 Package Diagram ............................................................ 12 Thermal Resistance ..........................................................4 Acronyms ........................................................................13 Timing Electrical Characteristics ....................................5 Document Conventions ................................................. 13 Input Frequency Range and Selection ...........................5 Units of Measure ....................................................... 13 Output Clocks ..............................................................6 Document History Page ................................................. 14 REFOUT ......................................................................6 Sales, Solutions, and Legal Information ...................... 15 SSCLK1, 2 and 3 .........................................................6 Worldwide Sales and Design Support ....................... 15 Spread% Selection ...........................................................7 Products ....................................................................15 3-Level Digital Inputs ...................................................7 PSoC Solutions ....................................................... 15 Power-down (PD ) ......................................................8 Cypress Developer Community ................................. 15 Modulation Rate ..........................................................8 Technical Support ..................................................... 15 Characteristic Curves ......................................................9 Document Number: 38-07111 Rev. *H Page 2 of 15