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AD9840A Datasheet(PDF) 6 Page - Analog Devices |
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AD9840A Datasheet(HTML) 6 Page - Analog Devices |
6 / 16 page AD9840A –6– REV. 0 PIN CONFIGURATION 36 35 34 33 32 31 30 29 28 27 26 25 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 48 47 46 45 44 39 38 37 43 42 41 40 PIN 1 IDENTIFIER TOP VIEW (Not to Scale) AUX1IN AVSS AUX2IN AVDD2 BYP4 NC CCDIN DRVSS DRVSS (LSB) D0 D1 D2 NC = NO CONNECT D3 D4 D5 D6 BYP2 BYP1 AVDD1 AVSS AD9840A D7 AVSS D8 (MSB) D9 PIN FUNCTION DESCRIPTIONS Pin Number Name Type Description 1, 2 DRVSS P Digital Driver Ground 3–12 D0–D9 DO Digital Data Outputs 13 DRVDD P Digital Output Driver Supply 14 DRVSS P Digital Output Driver Ground 15, 18, 24, 41 DVSS P Digital Ground 16 DATACLK DI Digital Data Output Latch Clock 17 DVDD1 P Digital Supply 19 PBLK DI Preblanking Clock Input 20 CLPOB DI Black Level Clamp Clock Input 21 SHP DI CDS Sampling Clock for CCD’s Reference Level 22 SHD DI CDS Sampling Clock for CCD’s Data Level 23 CLPDM DI Input Clamp Clock Input 25, 26, 35 AVSS P Analog Ground 27 AVDD1 P Analog Supply 28 BYP1 AO Internal Bias Level. Decoupling 29 BYP2 AO Internal Bias Level Decoupling 30 CCDIN AI Analog Input for CCD Signal 31 NC NC Leave Floating or Decouple to Ground with 0.1 F 32 BYP4 AO Internal Bias Level Decoupling 33 AVDD2 P Analog Supply 34 AUX2IN AI Analog Input 36 AUX1IN AI Analog Input 37 CML AO Internal Bias Level Decoupling 38 VRT AO A/D Converter Top Reference Voltage Decoupling 39 VRB AO A/D Converter Bottom Reference Voltage Decoupling 40 DVDD2 P Digital Supply 42 THREE-STATE DI Digital Output Disable. Active High 43 NC NC May be tied High or Low. Should not be left floating. 44 STBY DI Standby Mode, Active High. Same as Serial Interface Standby Mode 45 NC NC Internally Not Connected. May be tied high or low 46 SL DI Serial Digital Interface Load Pulse 47 SDATA DI Serial Digital Interface Data 48 SCK DI Serial Digital Interface Clock TYPE: AI = Analog Input, AO = Analog Output, DI = Digital Input, DO = Digital Output, P = Power. |
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