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CDC5806 Datasheet(PDF) 1 Page - Texas Instruments |
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CDC5806 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 13 page www.ti.com FEATURES DESCRIPTION APPLICATIONS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VIDSEL REF_IN PLL1VDD VIDCLK PLL1VSS PLL2VDD AUDCLK PLL2VSS AUDSEL MCSEL ASICCLK PLL3VDD PLL3VSS CPUCLK PLL3VDD PLL3VSS USBCLK PLL3VDD PLL3VSS MCCLK PW PACKAGE (TOP VIEW) CDC5806 SCAS760A – MARCH 2004 – REVISED JULY 2004 THREE PLLs BASED CLOCK GENERATOR FOR DIGITAL TV APPLICATIONS • High Performance Clock Generator The CDC5806 is a clock generator which synthesizes video clocks, audio clocks, CPU clock, ASIC clock, • Clock Input Compatible With LVCMOS/LVTTL USB clock, and a memory card clock from a 54-MHz • Requires a 54-MHz Input Clock to Generate system clock. Multiple Output Frequencies Three phase-locked loops (PLLs) are used to • Low Jitter for Clock Distribution generate the different frequencies from the system • Generates the Following Clocks: clock. On-chip loop filters and internal feedback – VIDCLK 74.175824 MHz/54 MHz eliminate the need for external components. (Buffered) Since the CDC5806 is based on PLL circuitry, it – AUDCLK 16.9344 MHz/12.288 MHz requires a stabilization time to achieve phase-lock of the PLLs. The PLL stabilization time begins after the – CPUCLK 64 MHz reference clock input has a stable phase and – ASICCLK 32 MHz frequency. – USBCLK 48 MHz The device operates from a single 3.3-V supply – MCCLK 38.4 MHz/19.2 MHz/12 MHz voltage. The CDC5806 device is characterized for • Operates From Single 3.3-V Supply operation from -40 °C to 85°C. • Low Peak-to-Peak Period Jitter (150 ps Max) • PLLs Are Powered Down, if No Valid REF_IN Clock (< 5 MHz) is Detected or the VDD is Below 2 V • PLL Loop Filter Components Integrated • Packaged in TSSOP (PW) 20-Pin Package • Industrial Temperature Range -40 °C to 85 °C Applications • Digital Television With a Memory Card Interface Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2004, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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