CY24204 MediaClock DTV, STB Clock Generator Features Benefits Integrated phase-locked loop (PLL) Internal PLL with up to 400-MHz internal operation Low jitter, high-accuracy outputs Meets critical timing requirements in complex system designs VCXO with Analog Adjust Large 150-ppm range, better linearity 3.3V operation Enables application compatibility Part Number Outputs Input Frequency Output Frequency Range CY24204-3 4 27-MHz Crystal Input Two copies of 27-MHz reference clock output, two copies of 27/27.027/74.250/74.17582418 MHz (frequency selectable) CY24204-4 4 27-MHz Crystal Input Two copies of 27-MHz reference clock output, two copies of 27/27.027/74.250/74.17582418 MHz (frequency selectable, Increased VCXO pull range) CY24204-5 4 27-MHz Crystal Input Two copies of 27-MHz reference clock output, two copies of 27/27.027/74.250/74.17582418 MHz (frequency selectable, Increased output drive strength) Logic Block Diagram XIN Q OSC. VCO OUTPUT XOUT MULTIPLEXER CLK1 AND P VCXO DIVIDERS CLK2 PLL REFCLK1 REFCLK2 FS0 (-3,-4,-5) FS1 OE VSSL VDD AVDD AVSS VSS VDDL Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document : 38-07450 Rev. *D Revised May 22, 2008 + Feedback CY24204 Pin Configuration Figure 1. CY24204-3,4,5 16-Pin TSSOP 1 XOUT 16 XIN 2 15 VDD OE 14 AVDD 3 FS1 13 4 VSS VCXO 12 AVSS 5 CLK1 11 VSSL 6 VDDL 10 REFCLK2 7 FS0 9 REFCLK1 8 CLK2 Table 1. Pin Definition Name Pin Number Description XIN 1 Reference Crystal Input. V 2 Voltage Supply. DD AV 3 Analog Voltage Supply. DD VCXO 4 Input Analog Control for VCXO. AV 5 Analog Ground. SS V 6 CLK Ground. SSL REFCLK2 7 Reference Clock Output. REFCLK1 8 Reference Clock Output. CLK1 927/27.027/74.250/74.17582418-MHz Clock Output (Frequency Selectable). FS0 10 Frequency Select 0, Weak Internal Pull up. V 11 CLK Voltage Supply. DDL CLK2 1227/27.027/74.250/74.17582418-MHz Clock Output (Frequency Selectable). V 13 Ground. SS FS1 14 Frequency Select 1, Weak Internal Pull up. OE 15 Output Enable, Weak Internal Pull up. XOUT 16 Reference Crystal Output. Frequency Select Options 1 OE FS1 FS0 CLK1/CLK2 REFCLK 1/2 Unit 000 off 27 MHz 001 off 27 MHz 010 off 27 MHz 011 off 27 MHz 100 27 27 MHz 1 0 1 27.027 27 MHz 1 1 0 74.250 27 MHz 1 1 1 74.17582418 27 MHz Note 1. off = output is driven HIGH. Document : 38-07450 Rev. *D Page 2 of 7 + Feedback 24204-,3,4,5