PixArt Imaging Inc.
PAC7312
VGA PC Camera Single-Chip with Audio
1. Pin Assignment
1.1 PLCC Package
Pin#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Name
NC
MIC
NC
VRB
VCM
NC
NC
VRT
VDDA
VDDAY
EPR_DO
VSSQ
VDDQ
EPR_CS/TR2
EPR_CK/TR3
EPR_DI/TR1
VSSAY
NC
NC
GPO/TR0
LED
NC
TEST2
EPR_EN
IOTRAP#
KEY#
NC
VSSQ
VDDD
PWR_5V
NC
VDDQ
GPIO
TEST1
NC
RESET#
VSSQ
XOUT
XIN
DP
DN
NC
VDDQ
VDDP
VDDAD
VDDAV
VSSA
PWR_5V
Type
-
IN
-
BYPASS
BYPASS
-
-
BYPASS
BYPASS
BYPASS
IN
GND
BYPASS
OUT
OUT
OUT
GND
-
-
OUT
OUT
-
IN
IN
IN
IN
-
GND
BYPASS
PWR
-
BYPASS
IO
IN
-
IN
GND
OUT
IN
I/O
I/O
-
BYPASS
BYPASS
BYPASS
BYPASS
GND
PWR
Description
No Connection
Microphone input
No Connection
Analog voltage reference
Analog voltage reference
No Connection
No Connection
Analog voltage reference
Analog power for AD/DA/PGA, 2.5V
Sensor reset power reference
Data output of EEPROM
Ground for I/O and PHY
Power for I/O and PHY
Chip Select of EEPROM;
(IO trap pin for PID2, internal pull-down 100Kohm)
Serial clock of EEPROM;
(IO trap pin for PID3, internal pull-down 100Kohm)
Data input of EEPROM;
(IO trap pin for PID1, internal pull-down 100Kohm)
Sensor ground
No Connection
No Connection
General purpose output;
(IO trap pin for PID0, internal pull-down 100Kohm)
LED driver
No Connection
Test pin, internal pull-up 100Kohm
Enable signal of EEPROM (1: enable, 0: disable), internal pull-down 100Kohm
I/O trap enable signal (0: enable, 1: disable, internal pull-down 100Kohm)
Snapshot control signal (Active Low, internal pull-up 100Kohm)
No Connection
Ground for I/O and PHY
Logic power for mixed-mode circuit, 2.5V
Main power, USB bus power
No Connection
Power for I/O and PHY, 3.3V
General purpose input/output, internal pull-down 100Kohm
Test pin. Connect to GND in normal operation mode
No Connection
Chip power up reset
Ground for I/O and PHY
Crystal output
Crystal input
DP for USB1.1 PHY
DN for USB1.1 PHY
No Connection
Power for I/O and PHY
Analog power for PLL
Analog voltage reference power for core logic, 2.5V
Analog voltage reference
Analog ground
Main power, USB bus power
2
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.
PixArt Imaging Inc.
E-mail:
fae_service@PixArt.com.tw
V1.5 Oct. 2005
PIXART [ PIXART IMAGING INC. ]
