Datasheet

AD9979
Rev. C | Page 9 of 56
Pin No. Mnemonic Type
1
Description
28 CLI DI Master Clock Input
29 AVSS P Analog Ground for AFE
30 AVDD P Analog Supply for AFE (1.8 V)
31 CCDINP AI CCD Signal Positive Input
32 CCDINM AI CCD Signal Negative Input; Normally Tied to AVSS
33 AVSS P Analog Ground for AFE
34 AVDD P Analog Supply for AFE (1.8 V)
35 REFT AO Reference Top Decoupling (Decouple with 1.0 μF to AVSS)
36 REFB AO Reference Bottom Decoupling (Decouple with 1.0 μF to AVSS)
37 LDOEN DI LDO Output Enable; 3 V = LDO Enabled, GND = LDO Disabled
38 SL DI 3-Wire Serial Load
39 SDI DI 3-Wire Serial Data Input
40 SCK DI 3-Wire Serial Clock
41 GPO1 DIO General-Purpose Input/Output 1
42 GPO2 DIO General-Purpose Input/Output 2
43 VD DI Vertical Sync Pulse
44 HD DI Horizontal Sync Pulse
45 DVSS P Digital Ground
46 DVDD P Digital Supply (1.8 V)
47 D0 (LSB) DO Data Output
48 D1 DO Data Output
EPAD The exposed pad must be connected to GND.
1
AI = analog input, AO = analog output, DI = digital input, DO = digital output, DIO = digital input/output, P = power.