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CS4953 датащи(PDF) 42 Page - Cirrus Logic |
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CS4953 датащи(HTML) 42 Page - Cirrus Logic |
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42 / 44 page ![]() CS4952/53 42 DS223PP2 TQFP Pin Description Pin Name Pin Number Type Description V [7:0] 8, 7, 6, 5, 4, 3, 2, 1 IN Digital video data inputs CLKIN 27 IN 27 MHz input clock ADDR 13 IN Address enable line / subcarrier crystal input XTAL 12 OUT subcarrier crystal output HSYNC/CB 10 I/O Active low horizontal sync, or composite blank signal VSYNC 11 I/O Active low vertical sync. FIELD 9 OUT Video field ID. Selectable polarity RD 25 IN Host parallel port read strobe, active low WR 26 IN Host parallel port write strobe, active low PDAT [7:0] 17,18,19,20,21,22,23,24 I/O Host parallel port/ general purpose I/O SDA 29 I/O I2C data SCL 30 IN I2C clock input CVBS75 43 CURRENT Composite video output for driving 75 Ω loads CVBS37 42 CURRENT Composite video output for driving 37.5 Ω loads Y 37 CURRENT Luminance analog output for driving 37.5 Ω loads C 38 CURRENT Chrominance analog output for driving 37.5 Ω loads VREFOUT 36 OUT Internal voltage reference output VREFIN 35 IN External voltage reference input ISET 34 OUT DAC current set INT 28 OUT Interrupt output, active high RESET 31 IN Active low master reset TEST 44 IN TEST pin. Ground for normal operation VAA 14, 33, 39, 41 PS +5 V supply GND 15, 16, 32, 40 PS Ground |
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