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VSP1221 Datasheet(PDF) 2 Page - Texas Instruments |
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VSP1221 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 26 page www.ti.com VSP1221 SLES012A – SEPTEMBER 2001 – REVISED JULY 2004 Terminal Functions TERMINAL TYPE(1) DESCRIPTION NAME PIN D0 D0 = Bit 0 ADC output, least-significant bit (LSB) 1 DO /SDO SDO = Serial data output (used for register read back) D1 2 DO Bit 1 ADC output D2 3 DO Bit 2 ADC output D3 4 DO Bit 3 ADC output D4 5 DO Bit 4 ADC output D5 6 DO Bit 5 ADC output D6 7 DO Bit 6 ADC output D7 8 DO Bit 7 ADC output D8 9 DO Bit 8 ADC output D9 10 DO Bit 9 ADC output D10 11 DO Bit 10 ADC output D11 12 DO Bit 11 ADC output, most-significant bit (MSB) DIVDD 13 P Power supply for digital I/O DIVSS 14 P Digital ground for digital I/O DVSS 15 P Digital ground ADCCL 16 DI ADC clock K DVDD 17 P Digital power supply CFG1 18 DI Configuration pin 1. Must be connected to GND BLKG 19 DI Blanking pulse: High = Normal operation Low = Digital output as programmed in the blanking register (see the blanking register section) CLPOB 20 DI Optical-black clamping pulse (default = active low) SHP 21 DI CDS reference sampling pulse (default = active low) SHD 22 DI CDS data sampling pulse (default = active low) CLPDM 23 DI Dummy clamping pulse (default = active low) CFG2 24 DI Configuration pin 2. Must be connected to GND VSS 25 P Substrate ground AVSS 26, 35, 41 P Analog ground AVDD 27, 33, 40 P Analog power supply CLREF 28 AO External decoupling for clamp voltage TP1 29 AIO Test point. Do not connect DIN 30 AI CCD signal input PIN 31 AI Input ground TP2 32 AIO Test point. Do not connect DAC01 34 AO General-purpose 8-bit DAC output voltage DAC02 36 A0 General-purpose 8-bit DAC output voltage ISET 37 AO Internal bias-current setting REFP 38 AO External decoupling for internal positive reference REFM 39 AO External decoupling for internal negative reference OE 42 DI Output data enable: Low = Normal operation High = Digital output high impedance state RESET 43 DI Hardware reset (active low) STBY 44 DI Hardware power down (active low) (1) P: Power Supply, AI: Analog input, AO: Analog output, AIO: Analog input/output, DI: Digital input, DO: Digital output 2 |
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