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CDC5806PWR データシート(PDF) 3 Page - Texas Instruments |
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CDC5806PWR データシート(HTML) 3 Page - Texas Instruments |
3 / 13 page www.ti.com FUNCTIONAL DESCRIPTION OF THE LOGIC CDC5806 SCAS760A – MARCH 2004 – REVISED JULY 2004 Terminal Functions TERMINAL TYPE DESCRIPTION NAME NO REF_IN 2 I LVCMOS Reference frequency input VIDSEL 1 I LVCMOS VIDSEL select input for VIDCLK. It selects between 74.175824 MHz from PLL1 and buffered input frequency of 54 MHz, 100k||100k pull to mid-level. AUDSEL 9 I LVCMOS AUDSEL select input for AUDCLK. It selects between 16.9344 MHz and 12.288 MHz from PLL2, 100k||100k pull to mid level. MCSEL 10 I LVCMOS MCSEL select input for MCCLK. It selects from 38.4 MHz, 19.2 MHz, and 12 MHz from PLL3, 100k||100k pull to mid level. VIDCLK 4 O LVCMOS VIDCLK output 74.175824 MHz or 54 MHz AUDCLK 7 O LVCMOS AUDCLK output 16.9344 MHz or 12.288 MHz CPUCLK 17 O LVCMOS CPUCLK output 64 MHz ASICCLK 20 O LVCMOS ASICCLK output 32 MHz USBCLK 14 O LVCMOS USBCLK output 48 MHz MCCLK 4 O LVCMOS MCCLK output 38.4 MHz / 19.2 MHz / 12 MHz VDD_PLL1 3 Power 3.3-V supply for PLL1 and VIDCLK VDD_PLL2 6 Power 3.3-V supply for PLL2 and AUDCLK VDD_PLL3 13, 16, 19 Power 3.3-V supply for PLL3 and CPUCLK, ASICCLK, USBCLK, and MCCLK VSS_PLL1 5 Ground Ground for PLL1 and VIDCLK VSS_PLL2 8 Ground Ground for PLL2 and AUDCLK VSS_PLL3 12, 15, 18 Ground Ground for PLL3 and CPUCLK, ASICCLK, USBCLK, and MCCLK Table 1. Select Function for Video, Audio, CPU, ASIC, and USB Clocks VIDSEL AUDSEL VIDCLK AUDCLK CPUCLK ASICCLK USBCLK Unit L L 54 (buffered) 12.288 64 32 48 MHz L M Reserved Reserved 64 32 48 MHz L H 54 (buffered) 16.9344 64 32 48 MHz M L Reserved Reserved 64 32 48 MHz M M Reserved Reserved REFCLK/3 REFCLK/6 REFCLK/4 MHz M H Reserved Reserved 64 32 48 MHz H L 74.175824 12.288 64 32 48 MHz H M Reserved Reserved 64 32 48 MHz H H 74.175824 16.9344 64 32 48 MHz Table 2. Select Function for MC Clock MCSEL MCCLK MCCLK if VIDSEL = M and AUDSEL = M UNIT H 12 MHz REFCLK/16 MHz M 38.4 MHz REFCLK/5 MHz L 19.2 MHz REFCLK/10 MHz 3 |
同様の部品番号 - CDC5806PWR |
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同様の説明 - CDC5806PWR |
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