Datasheet
AD9974
Rev. A | Page 9 of 52
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1
A1 CORNER
INDEX AREA
2345678910
A
B
C
D
E
F
G
H
J
K
AD9974
TOP VIEW
(Not to Scale)
05955-003
Figure 3. Pin Configuration
Table 8. Pin Function Descriptions
Ball Location Mnemonic Type
1
Description
B2 SL_A DI 3-Wire Serial Load for Channel A.
C2 SDATA_A DI 3-Wire Serial Data for Channel A.
D2 SCK_A DI 3-Wire Serial Clock for Channel A.
C1 REFT_A AO Reference with Top Decoupling for Channel A. Decouple with 0.1 μF to AVSS_A.
D1 REFB_A AO Reference with Bottom Decoupling for Channel A. Decouple with 0.1 μF to AVSS_A.
A1 CCDINM_A AI Analog Input for Channel A Image Sensor Signal.
F4 H1_A DO CCD Horizontal Clock 1 for Channel A.
F3 H2_A DO CCD Horizontal Clock 2 for Channel A.
D4 H3_A DO CCD Horizontal Clock 3 for Channel A.
D3 H4_A DO CCD Horizontal Clock 4 for Channel A.
B4 RG_A DO CCD Reset Gate Clock for Channel A.
J2 DRVSS_A P Digital Driver Ground for Channel A.
K3 DRVDD_A P Digital Driver Supply for Channel A: 1.8 V or 3.0 V.
E3 HVSS_A P H1_A to H4_A Driver Ground for Channel A.
E4 HVDD_A P H1_A to H4_A Driver Supply for Channel A: 3.0 V.
C3 RGVSS_A P RG_A Driver Ground for Channel A.
C4 RGVDD_A P RG_A Driver Supply for Channel A: 3.0 V.
B3 IOVDD_A P
Digital I/O Supply: 1.8 V or 3.0 V (HD, VD, SL, SCK, SDATA) and LDO Input (3.0 V Only)
When LDO Is Used.
A4 CLI_A DI Master Clock Input for Channel A.
B1 AVSS_A P Analog Ground for Channel A.
A2 CCDINP_A AI Analog Input for Channel A Image Sensor Signal.
F2 DVSS_A P Digital Ground for Channel A.
F1 DVDD_A P Digital Supply for Channel A: 1.8 V.
E2 VD_A DI Vertical Sync Pulse for Channel A.
E1 HD_A DI Horizontal Sync Pulse for Channel A.
B8 SL_B DI 3-Wire Serial Load for Channel B.
C8 SDATA_B DI 3-Wire Serial Data for Channel B.
A5 LDO_OUT_A P 1.8 V LDO Output from Channel A.
A6 CCDINM_B AI Analog Input for Channel B Image Sensor Signal.
D8 SCK_B DI 3-Wire Serial Clock for Channel B.
C7 REFT_B AO Reference with Top Decoupling for Channel B. Decouple with 0.1 μF to AVSS_B.
D7 REFB_B AO Reference with Bottom Decoupling for Channel B. Decouple with 0.1 μF to AVSS_B.
A7 CCDINP_B AI Analog Input for Channel B Image Sensor Signal.
F10 H1_B DO CCD Horizontal Clock 1 for Channel B.
F9 H2_B DO CCD Horizontal Clock 2 for Channel B.