AD9940
Data Sheet
Pin No.
33
34
35
36
37
38
39
40
41 to 46
47, 48
Mnemonic
SHP
AVSS
CCDIN
AVSS
AVDD
AVSS
REFB
REFT
NC
AVSS
EPAD
Type1
DI
P
AI
P
P
P
AO
AO
NC
P
Description
Test Clock Input for CCD Reset Phase Sampling.
Analog Ground.
CCD Signal Input.
Analog Ground (CCD Signal Input Reference).
Analog Supply.
Analog Ground.
Voltage Reference Bottom By-Pass. Decoupled to analog ground with a 0.1 μF capacitor.
Voltage Reference Top By-Pass. Decoupled to analog ground with a 0.1 μF capacitor.
No Connect. Connect to GND.
Analog Ground.
Exposed Pad. The LFCSP has an exposed pad. Connect the EPAD to GND.
1 Type: AI = analog input; AO = analog output; DI = digital input; DO = digital output; P = power.
Rev. A | Page 8 of 20