Datasheet

AD9943/AD9944
Rev. B | Page 9 of 20
AD9944 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
PIN 1
INDICATOR
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 SDAT
A
25 SL
AD9944
NC = NO CONNECT 02905-B-004
Figure 3. AD9944 Pin Configuration
Table 8. AD9944 Pin Function Descriptions
Pin No. Mnemonic Type
1
Description
1 to 10 D2 to D11 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 Reference Level.
19 SHD DI CDS Sampling Clock for CCD 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.
31 D0 DO Digital Data Output.
32 D1 DO Digital Data Output.
1
Type: AI = analog input, AO = analog output, DI = digital input, DO = digital output, P = power, and NC = no connect.