8
Proprietary to OmniVision Technologies
Version 1.3, September 15, 2003
OV9625/OV9121
CMOS SXGA (1.3 MPixel) CAMERACHIP™
Omni
ision
Pin Description
Table 3
Pin Description
Pin Number
Name
Pin Type
Function/Description
01
SVDD
Power
3.3 V power supply for the pixel array
02
VrHIGH
Analog
Sensor high reference - bypass to ground using a 0.1 µF capacitor
03
NBIT
Analog
Sensor bit line reference - bypass to ground using a 0.1 µF capacitor
04
DEVDD
Power
3.3 V power supply for the sensor array decoder
05
DEGND
Power
Ground for the sensor array decoder
06
VrLOW
Analog
Sensor low reference - bypass to ground using a 0.1 µF capacitor
07
PWDN
Input (0)a
Power down mode enable, active high
08
FREX
Input (0)
Snapshot trigger, used to activate a snapshot sequence
09
NC
—
No connection
10
RESET
Input (0)
Chip reset, active high
11
SCCB_E
Input (0)
SCCB interface enable, active low
12
EXPSTB
Input (0)
Snapshot exposure start trigger
0:
Sensor starts exposure - only effective in snapshot mode
1:
Sensor stays in reset mode
13
VGA
Input (0)
Sensor Resolution Selection
0:
SXGA resolution (1280 x 1024)
1:
VGA resolution (640 x 480)
14
FSIN
Input (0)
Frame synchronization input
15
VcCHG
Analog
Sensor reference - bypass to ground using a 1 µF capacitor
16
AVDD
Power
3.3 V power supply for analog circuits
17
AGND
Power
Ground for analog circuits
18
ASUB
Power
Ground for analog circuit substrate
19
VrAD2
Analog
A/D converter reference - bypass to ground using a 0.1 µF capacitor
20
ADVDD
Power
3.3 V power supply for A/D converter
21
ADGND
Power
Ground for A/D converter
22
DVDD
Power
2.5 V power supply for digital circuits
23
DGND
Power
Ground for digital circuits
24
D0
Output
Digital video output bit[0]
25
D1
Output
Digital video output bit[1]
26
D2
Output
Digital video output bit[2]
27
D3
Output
Digital video output bit[3]
28
D4
Output
Digital video output bit[4]
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