PAC7640 Product Datasheet
Enhanced QE Global Shutter Image Sensor
PixArt Imaging Inc.
1.0 Introduction
1.1 System Overview
The PAC7640 is based on CMOS image sensor technology. It is designed to meet the increasingly demanding needs for
computer vision in 3D Stereo type mapping or mobile devices. Figure 1 illustrates a typical system application diagram. All
the image sensing, signal processing, timing synchronization are handled by the PAC7640.
PAC7640 can be configured to produce different frame rate and should the system require multiple camera (through the
use of FSYNC), the image output from each camera can be configured to output at a delay to the Host.
Single Sensor Application
Multiple Sensors Application
FSYNC
PAC7640LT
PAC7640LT
AEC/AGC
AEC/AGC
Sensor,
DSP, ISP
Frontend
DSP
(timing logic)
Sensor,
DSP, ISP
Frontend
DSP
(timing logic)
Virtual
Channel 0
Virtual
Channel 0
MIPI TX, CSI2
MIPI TX, CSI2
FSYNC
Host
Controller
Host
Controller
PAC7640LT
AEC/AGC
Sensor,
Frontend
DSP
(timing logic)
DSP, ISP
Virtual
Channel 1
MIPI TX, CSI2
Figure 1. System Overview
1.2 Block Diagram
VDD28
AEC/AGC
IMAGE SENSOR
2.8V POWER
1.5V POWER
1.8V POWER
VDD28_MIPI
ADC
VDD15
POWER
SUPPLY
VDD15_MIPI
VDDIO
IMAGE
SIGNAL
PROCESSOR
VSS/VDGND/VNEG/VGND_MIPI
RESETB
DATA_TX_P
RESET
MIPI
DATA_TX_N
CLK_TX_P
CLK_TX_N
INTERFACE
DIGITAL
SIGNAL
PROCESSOR
CLOCK GEN
SYS_CLK
FOR_TRI
FOD
TRIGGER
FSYNC
FRAME SYNC
I2C_SCL
I2C_SDA
SERIAL
INTERFACE
CONTROL REGISTER LED CONTROL
LED_STRB
Figure 2. Functional Block Diagram
Version 1.1 | 11 Sep 2015 | 41002EN
PixArt Imaging Inc. http://www.pixart.com
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PIXART [ PIXART IMAGING INC. ]
