PIXART PAC7332

PAC7332
PAC7332 VGA PC Camera Single-Chip with Audio
General Description
The PAC7332 is a single chip with an embedded VGA CMOS image sensor and USB 1.1 interface. It has JPEG
image compression and image processing. The generic application is a PC camera. And the optical size is 1/6”
which can easily be embedded in LCD monitors, notebooks or PDA. It also provides high quality audio sampling
function for sound recording. It is fully compliant with USB Video Class 1.0 and USB Audio Class 1.0 standard.
PAC7332 supports the interface to a serial-EEPROM. When the EEPROM function is enabled, the internal
control registers can be power-up loaded from external EEPROM. This allows customization of VID, PID,
product string…etc.
Features
z
USB Features
„ USB video class 1.0 compliance.
„ USB audio class 1.0 compliance.
z Micro Controller Features
„ Built-in 8 bit micro controller with mask ROM and
SRAM. Firmware supports AE, AWB, and USB
protocol.
„ Programmable codes uploaded from serial
EEPROM/Flash(SPI).
z Audio Controller Features
„ USB audio class 1.0 compliance.
„ Built in 10 bit mono audio ADC for audio recording
through microphone.
„ Sampling rate @48kHZ, resolution 16 bits format
z Miscellaneous Features
„ USB Vendor ID, Product ID, device release number,
maximum power consumption and the string
descriptor index and data selectable via a serial
EEPROM or by metal mask.
„ Support MJPG and YUV.
„ USB 5V power in, on-chip 3.3V regulator for IO
PAD and PHY.
„ 36-pin CSP
Key Specification
Supply Voltage
5.0V
Resolution
640 (H) x 480 (V)
Optical format
1/6“
Pixel Size
3.6um x 3.6um
Frame Rate
Up to 30fps
System Clock
12MHz
Color Filter
RGB Bayer Pattern
Scan mode
Progressive
Package
36-pin CSP
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
1
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
1. Pin Assignment
1.1 36P CSP 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
Name
LED
Reg_SDA
Reg_SCL
GPIO[2]
GPIO[4]
VSSD
VDDMD5V
VDD18K
VDDMD
OSC_OUT
OSC_IN
PXOP
DP
DN
KEY
GPIO[1]
GPIO[3]
VDDAY
VSSAY
VDDAD
VDDMA
VDDMA5V
VDD36A_A
VDD28A
MIC_P
MIC_N
VCOM
VSSA_ADUIO
EPR_SI
EPR_CSB
EPR_SCK
EPR_SO
VSSD
VDD18K
TESTMD
GPIO[0]
Type
OUT
I/O
IN
I/O
I/O
GND
PWR
BYPASS
BYPASS
GND
IN
OUT
I/O
I/O
IN
I/O
I/O
BYPASS
GND
BYPASS
BYPASS
PWR
BYPASS
BYPASS
IN
IN
BYPASS
GND
OUT
OUT
OUT
IN
GND
BYPASS
IN
I/O
Description
LED driver
I2C data for test
I2C clock for test
General purpose I/O
General purpose I/O
Ground for digital
5V power for digit circuit
Logic power for digit circuit, 1.8V
Logic power for digit circuit, 3.3V
Crystal output
Crystal input
Not connect
DP for USB1.1 PHY
DN for USB1.1 PHY
Snapshot control signal (Active Low, internal pull-up 100Kohm)
General purpose I/O
General purpose I/O
Logic power for sensor
Analog ground
Logic power for analog circuit, 2.5V
Logic power for analog circuit, 2.5V
5V power for analog circuit
Analog MIC reference audio power 3.6V
Analog MIC reference audio power 2.8V
Microphone positive input
Microphone negative input
Microphone common mode voltage reference(audio power)
Audio analog circuit GND
Data input of EEPROM
Chip Select of EEPROM
Serial clock of EEPROM
Data out of EEPROM
Ground for digital
Logic power for digit circuit, 1.8V
Test pin.
General purpose I/O
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
2
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
2. Block Diagram
PAC7332 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. And the JPEG compressed image data is transmitted by USB 1.1 isochronous pipe. PAC7332 supports
the interface to a serial-EEPROM. When the EEPROM function is enabled, the internal control registers can be
power-up loaded from external EEPROM. This allows customization of VID, PID, product string…etc.
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
3
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
3. Specifications
Absolute Maximum Ratings
Exceeding the Absolute Maximum Ratings shown below invalidates all AC and DC electrical specifications and may result
in permanent device damage.
Symbol
Parameter
Min
Max
Unit
TSTG
Ambient storage temperature
-25
125
°C
VDD
DC supply voltage
-0.5
5.5
V
VIN
DC input voltage
0.5
3.8
V
VOUT
DC output voltage
-0.5
3.8
V
ESD
ESD Rating, Human Body model
2
kV
Notes
Recommend Operating Condition
Symbol
Min
Typ.
Max
Unit
Temperature Operation
Range
Stable Image
-10
-
70
°C
0
-
50
°C
VDD
Power supply voltage
4.5
5.0
5.5
V
FCLK
System clock frequency
-
12.0
-
MHz
TA
Parameter
Notes
DC Electrical Characteristics (Typical values at 25°C, VDD =5.0V, FCLK=12.0MHz)
Symbol
Parameter
Min.
Typ.
Max.
Unit
-
40
-
mA
Notes
Type: PWR
IDD
IPWDN
Operating Current
Power Down current
@30 frame/sec
500u
Type: IN & I/O, Reset
VIH
Input voltage HIGH
VIL
Input voltage LOW
0.7VDDMD
-
V
-
0.3VDDMD
V
Type: OUT & I/O
VOH
Output voltage HIGH
0.9VDDMD
-
-
V
VOL
Output voltage LOW
-
-
0.1VDDMD
V
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
4
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
4. Package Information
4.1 CSP Pin Assignment and Optical Center Information
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
5
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
4.1 CSP Package Ball Matrix Table
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
6
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
5. Reference Application Circuit
CON1
R1
C1
MINI USB 5P 10M
USB_5V
4.7nF/250V
4.7u
+
C2
8
9
HC3
HC4
0.1u
HC2
HC1
7
6
GND2
NC
+
+5V
C3
USB_SHADING
5
4
3
2
1
USB_SHADING
USB_5V
L1
3.3uH
L2
3.3uH
VDDMD5V
C6
C5
10pF
USB_5V
VDDMD
D+
D-
C4
VDDMA5V
10pF
R2
1M
Y 1 12MHz
4.7u
+
1u
1u
1u
D1
C7 C8 C9
LED-0603
R3
R4
WP
C5
A5
B5
REG_SDA
LED
A4
GPIO_2
REG_SCL
VSSD
D4
B4
VDDMD5V
B3
VSSD
VDDMD5V
GPIO_4
VDDMD
VDD18K
OSC_OUT
A3
VDD18K
VDDMD
GPIO_2
GPIO_0
R7
100k
B6
C4
VDD18K
C10
1u
D5
VSSAY
R8
100k
100k
C17 C13 C18 C14 C19 C15
+
+
+
EPR_SO
100k
0.1u 10u 0.1u 10u 0.1u 10u
EPR_SO
F6
EPR_SO
EPR_CSB
EPR_SCK
G6
E5
EPR_SCK
EPR_CSB
EPR_SI
G5
G3
VDDAD
VSA_AUDIO
VDDAD
EPR_HOLD R9
R10
A6
VSSA
VSA_AUDIO F5
G1
VDD28A
VDDAY
F1
VDDAD
EPR_SI
E3
VSSAY
VSSD
VCOM
VSSA
VDD18K
VDDAY
G4
0.1u
PAC7332
GPIO_3
VDDMA
C12
TESTMD
VCOM
E2
GPIO_1
MIC_N
VDDAY
+
4.7u
GPIO_0
KEY
MIC_P
D2
C11
DN
F4
D3
1k
DP
E4
C2
VDD28A
B1
KEY
VDD36A_A
U2
B2
F3
DN
VDD36A_A
DP
0
VDDMA5V
0
R6
G2
R5
F2
0H
VDDMA
0H
L4
D-
VDDMA5V
L3
D+
C3
OSC_IN
A2
OSC_IN
OSC_OUT
U1
A1
100k
VDDMD
C16 C20
+
10u 0.1u
C21
C22
C23
0.1u
0.1u
0.1u
R11
10k
R12
10k
VCOM
C24
U3
CS VCC
SO HOLD
WP SCK
GND SI
8
7
6
5
VDDMD
EPR_HOLD
EPR_SCK
EPR_SI
VDD28A
R13
1k
25F512A
C25
R14
1k
0.1u
R15
1
1
2
3
4
1
EPR_CSB
EPR_SO
WP
MIC+1
MIC-1
1k
+
22u
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
7
V1.0 Jul. 2009
PixArt Imaging Inc.
PAC7332
VGA PC Camera Single-Chip with Audio
Update History
Version
V1.0
Update
Creation, Preliminary 1st version
Date
07/16/2009
All rights strictly reserved any portion in this paper shall not be reproduced, copied or transformed to any other forms without permission.
PixArt Imaging Inc.
E-mail: [email protected]
8
V1.0 Jul. 2009