Datasheet

AD9945
–5–
PIN CONFIGURATION
TOP VIEW
24 REFB
23 REFT
22 CCDIN
21 AVSS
D2 1
D3 2
D4 3
32 D1
20 AVDD
19 SHD
18 SHP
17 CLPOB
D10 9
D11 10
DRVDD 11
DRVSS 12
DVDD 13
DATACLK 14
DVSS 15
PBLK 16
D5 4
D6 5
D7 6
D8 7
D9 8
31 D0 30 NC 29 NC 28 NC 27 SCK 26 SDATA 25 SL
AD9945
PIN 1
INDICATOR
PIN FUNCTION DESCRIPTIONS
Pin Number Mnemonic Type Description
1 to 10, 31, 32 D2 to D11, D0, D1 DO Digital Data Outputs
11 DRVDD P Digital Output Driver Supply
12 DRVSS P Digital Output Driver Ground
13 DVDD P Digital Supply
14 DATACLK DI Digital Data Output Latch Clock
15 DVSS P Digital Supply Ground
16 PBLK DI Preblanking Clock Input
17 CLPOB DI Black Level Clamp Clock Input
18 SHP DI CDS Sampling Clock for CCD’s Reference Level
19 SHD DI CDS Sampling Clock for CCD’s Data Level
20 AVDD P Analog Supply
21 AVSS P Analog Ground
22 CCDIN AI Analog Input for CCD Signal
23 REFT AO A/D Converter Top Reference Voltage Decoupling
24 REFB AO A/D Converter Bottom Reference Voltage Decoupling
25 SL DI Serial Digital Interface Load Pulse
26 SDATA DI Serial Digital Interface Data Input
27 SCK DI Serial Digital Interface Clock Input
28 to 30 NC NC Internally Pulled Down. Float or connect to GND.
TYPE: AI = Analog Input, AO = Analog Output, DI = Digital Input, DO = Digital Output, P = Power.
REV.
C
NOTES
1. IT IS RECOMMENDED THAT THE EXPOSED PAD BE
SOLDERED TO THE GROUND PLANE OF THE PCB.