PixArt Imaging Inc.
PAC7301/PAC7302
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
VDDMA5
VDDA33
VDDAY
VDDAYM
VDDA
VSSA
KEY#
DP
DN
OSC_IN
OSC_OUT
VDDQ
VDDMD5
VDDD
VSSQ
EPR_EN
LED
NC
NC
VSSQ
GPI1
RESET#
PWR
BYPASS
BYPASS
BYPASS
BYPASS
GND
IN
I/O
I/O
IN
OUT
BYPASS
PWR
BYPASS
GND
IN
OUT
-
-
GND
IN
IN
5V power for video analog circuit
Analog power output 3.3V(for 2.5 regulator use)
Analog power for sensor array 2.5V
Analog power for sensor CDS 2.5V
Analog power for Video PGA/ADC 2.5V
Analog ground
Snapshot control signal (Active Low, internal pull-up 100Kohm)
DP for USB1.1 PHY
DN for USB1.1 PHY
Crystal input
Crystal output
Power for I/O and PHY, 3.3V
5V power for digital circuit
Logic power for digital circuit, 1.8V
Digital Ground for I/O and PHY, digital core.
EEPROM enable pin active high
LED driver
No Connection
No Connection
Digital Ground for I/O and PHY, digital core.
General purpose input pin
Chip power up reset
4. Block Diagram
PAC7301/PAC7302 is a USB
PC Camera SOC
with enhanced image quality and sensitivity, internal regulators,
JPEG image compression, image processing schemed, control registers, on-chip SRAM for image data buffer and
USB controller. All register parameters are set by USB interface. And the JPEG compressed image data is
transmitted by USB 1.1 isochronous pipe.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission
.
5
PixArt Imaging Inc.
E-mail:
fae_service@PixArt.com.tw
V1.4 Nov 2007
PIXART [ PIXART IMAGING INC. ]
