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ADV7191KST 数据表(PDF) 10 Page - Analog Devices |
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ADV7191KST 数据表(HTML) 10 Page - Analog Devices |
10 / 69 page ADV7190/ADV7191 –10– REV. 0 PIN FUNCTION DESCRIPTIONS Pin Input/ No. Mnemonic Output Function 1–16 P0–P15 I 8-Bit or 16-Bit 4:2:2 Multiplexed YCrCb Pixel Port. The LSB of the input data is set up on Pin P0. 17, 25, 29, VAA P Analog Power Supply (3.3 V to 5 V). 38, 43, 54, 63 18, 24, 26, AGND G Analog Ground. 33, 39, 42, 55, 64 19 HSYNC I/O HSYNC (Modes 1, 2, and 3) Control Signal. This pin may be configured to be an output (Master Mode) or an input (Slave Mode) and accept Sync Signals. 20 VSYNC I/O VSYNC Control Signal. This pin may be configured as an output (Master Mode) or as an input (Slave Mode) and accept VSYNC as a Control Signal. 21 BLANK I/O Video Blanking Control Signal. This signal is optional. For further information see Vertical Blanking and Data Insertion BLANK Input section. 22 ALSB I TTL Address Input. This signal sets up the LSB of the MPU address. 23 TTXREQ O Teletext Data Request Output Signal, used to control teletext data transfer. 27 CLKIN I TTL Clock Input. Requires a stable 27 MHz reference clock for standard operation. Alterna- tively, a 24.5454 MHz (NTSC) or 29.5 MHz (PAL) can be used for square pixel operation. 28 CLKOUT O Clock Output Pin. 30 SCL I MPU Port Serial Interface Clock Input. 31 SDA I/O MPU Port Serial Data Input/Output. 32 SCRESET/ I Multifunctional Input: Real-Time Control (RTC) Input, Timing Reset Input, Subcarrier Reset RTC/TR Input. 34 RSET2 I A 1200 Ω resistor connected from this pin to GND is used to control full-scale amplitudes of the Video Signals from DACs D, E, and F. 35 COMP 2 O Compensation Pin for DACs D, E, and F. Connect a 0.1 µF Capacitor from COMP2 to VAA. 36 DAC F O S-Video C/V/RED Analog Output. This DAC is capable of providing 4.33 mA output. 37 DAC E O S-Video Y/U/BLUE Analog Output. This DAC is capable of providing 4.33 mA output. 40 DAC D O Composite/Y/GREEN Analog Output. This DAC is capable of providing 4.33 mA output. 41 DAC C O S-Video C/V/RED Analog Output. This DAC is capable of providing 4.33 mA output. 44 DAC B O S-Video Y/U/BLUE Analog Output. This DAC is capable of providing 4.33 mA output. 45 DAC A O Composite/Y/GREEN Analog Output. This DAC is capable of providing 4.33 mA output. 46 COMP 1 O Compensation Pin for DACs A, B, and C. Connect a 0.1 µF Capacitor from COMP1 to VAA. 47 VREF I/O Voltage Reference Input for DACs or Voltage Reference Output (1.235 V). An external VREF cannot be used in 4 × oversampling mode. 48 RSET1 I A 1200 Ω resistor connected from this pin to GND is used to control full-scale amplitudes of the Video Signals from DACs A, B, and C. 49 RESET I The input resets the on-chip timing generator and sets the ADV7190/ADV7191 into default mode. See Appendix 8 for Default Register settings. 50 CSO_HSO O Dual function CSO or HSO Output Sync Signal at TTL Level. 51 VSO/CLAMP I/O Multifunction Pin. VSO Output Sync Signal at TTL level. CLAMP TTL Output Signals can be used to drive external circuitry to enable clamping of all Video Signals. 52 PAL_NTSC I Input signal to select PAL or NTSC mode of operation, pin set to Logic 1 selects PAL. 53, 57–62 NC No Connect. 56 TTX I Teletext Data Input Pin. |
类似零件编号 - ADV7191KST |
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类似说明 - ADV7191KST |
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