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Número de pieza ASX340CS
Descripción 1/4-Inch Color CMOS NTSC/PAL Digital Image SOC
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ASX340CS: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor
Features
1/4-Inch Color CMOS NTSC/PAL Digital Image
SOC with Overlay Processor
ASX340CS Datasheet, Rev. F
For the latest datasheet, please visit www.onsemi.com
Features
• Low-power CMOS image sensor with integrated
image flow processor (IFP) and video encoder
• 1/4-inch optical format, VGA resolution (640H x
480V )
• 2x upscaling zoom and pan control
±40 additional columns and ±36 additional rows to
compensate for lens alignment tolerances
• Option to use single 2.8V power supply with off-chip
bypass transistor
• Overlay generator for dynamic bitmap overlay
• Integrated video encoder for NTSC/PAL with overlay
capability and 10-bit I-DAC
• On-chip image flow processor performs
sophisticated processing, such as color recovery and
correction, sharpening, gamma, lens shading
correction, on-the-fly defect correction, auto white
balancing, and auto exposure
• Auto black-level calibration
• 10-bit, on-chip analog-to-digital converter (ADC)
• Internal master clock generated by on-chip phase-
locked loop (PLL)
• Two-wire serial programming interface
• Interface to low-cost EEPROM and Flash through SPI
bus
• High-level host command interface
• Stand-alone operation support
• Comprehensive tool support for overlay generation
and lens correction setup
• Development system with DevWare
Applications
• Surveillance and video camera
• Door bell camera
• Internet Protocol (IP) camera
Table 1:
Key Parameters
Parameter
Typical Value
Pixel size
and type
5.6 m x 5.6 m active pinned-
photodiode with high-sensitivity mode
for low-light conditions
Sensor clear pixels
728H x 560V (includes VGA active
pixels,
demosaic and lens alignment pixels)
NTSC output
720H x 487V
PAL output
720H x 576V
Optical area (clear
pixels)
4.077mm x 3.136mm
Optical format
¼-inch
Frame rate
50/60 fields/sec
Sensor scan mode Progressive scan
Color filter array
RGB standard Bayer
Chief Ray Angle
(CRA)
Shutter type
Electronic rolling shutter (ERS)
Exposure, white balance, black level
offset correction, flicker detection and
Automatic Functions avoidance, color saturation control,
on the-fly defect correction, aperture
correction
Programmable
Controls
Exposure, white balance, horizontal
and vertical blanking, color, sharpness,
gamma correction, lens shading
correction, horizontal and vertical
image flip, zoom, windowing, sampling
rates, GPIO control
Key parameters are continued on next page.
See “New Features” on page 3.
See “Ordering Information” on page 3
ASX340CS_DS Rev. F Pub. 6/15 EN
1 ©Semiconductor Components Industries, LLC 2015,

1 page




ASX340CS pdf
ASX340CS: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor
List of Figures
List of Figures
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Figure 51:
Internal Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
System Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Using a Crystal Instead of an External Oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Sensor Core Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Pixel Array Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Image Capture Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Pixel Color Pattern Detail (top right corner) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Spatial Illustration of Image Readout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Color Pipeline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Color Bars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Gamma Correction Curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Multicamera System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
External Signal Processing Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Power-Up Sequence – Configuration Options Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Interface Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Host Command Process Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Single READ from Random Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Single Read from Current Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Sequential READ, Start from Random Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Sequential READ, Start from Current Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Single WRITE to Random Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Sequential WRITE, Start at Random Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Overlay Data Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Memory Partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Overlay Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Internal Block Diagram Overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Example of Character Descriptor 0 Stored in ROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Full Character Set for Overlay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
CCIR656 8-Bit Parallel Interface Format for 525/60 (625/50) Video Systems . . . . . . . . . . . . . . . . . . . .47
Typical CCIR656 Vertical Blanking Intervals for 525/60 Video System. . . . . . . . . . . . . . . . . . . . . . . . . .48
Typical CCIR656 Vertical Blanking Intervals for 625/50 Video System. . . . . . . . . . . . . . . . . . . . . . . . . .49
Primary Clock Relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Typical I/O Equivalent Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
NTSC Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Serial Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Digital Output I/O Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Slew Rate Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Configuration Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Power Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Power Down Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
FRAME_SYNC to FRAME_VALID/LINE_VALID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Reset to SPI Access Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Reset to Serial Access Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Reset to AE/AWB Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
SPI Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Video Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Equivalent Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
V Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Two-Wire Serial Bus Timing Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Quantum Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
63-Ball iBGA Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
ASX340CS_DS Rev. F Pub. 6/15 EN
5 ©Semiconductor Components Industries, LLC, 2015.

5 Page





ASX340CS arduino
ASX340CS: 1/4-Inch Color CMOS NTSC/PAL Digital Image Sensor
Pin Descriptions and Assignments
Table 1:
Pin Descriptions (continued)
Pin Number
F5
G5
A4
D3
G2
F3
C3
C4
G6
F6
C1
A3
G4
A5, A7, D8,
E7, G1, G3
B2, B8, C8,
E3, E8, G8,
H8
H5
A8
B4, H6
H7
H4
B5, C5, D1,
D5, H1
E5, F4
Pin Name
DAC_POS
DAC_NEG
DAC_REF
TDI
TDO
TMS
TCK
TRST_N
ATEST1
ATEST2
GPIO12
GPIO13
VREG_BASE
VDD
VDD_IO
VDD_DAC
VDD_PLL
VAA
VAA_PIX
Reserved
DGND
AGND
Type
Description
Output
Output
Output
Composite Video Output
Positive video DAC output in differential mode.
Video DAC output in single-ended mode. This interface is enabled by default using
NTSC/PAL signalling. For applications where composite video output is not
required, the video DAC can be placed in a power-down state under software
control.
Negative video DAC output in differential mode.
External reference resistor for the video DAC.
Input
Output
Input
Input
Input
Input
Input
Manufacturing Test Interface
JTAG Test pin (Reserved for Test Mode)
JTAG Test pin (Reserved for Test Mode)
JTAG Test pin (Reserved for Test Mode)
JTAG Test pin (Reserved for Test Mode)
Connect to GND.
Analog test input. Connect to GND in normal operation.
Analog test input. Connect to GND in normal operation.
GPIO
Input/Output Dedicated general-purpose input/output pin.
Input/Output Dedicated general-purpose input/output pin.
Supply
Supply
Supply
Power
Voltage regulator control. Leave floating if not used.
Supply for VDD core: 1.8V nominal. Can be connected to the output of the
transistor of the off-chip bypass transistor or an external 1.8V power supply.
Supply for digital IOs: 2.8V nominal.
Supply
Supply
Supply
Supply
Supply
Supply
Supply for video DAC: 2.8V nominal.
Supply for PLL: 2.8V nominal.
Analog power: 2.8V nominal.
Analog pixel array power: 2.8V nominal. Must be at same voltage potential as VAA.
Leave floating for normal operation.
Digital ground.
Analog ground.
ASX340CS_DS Rev. F Pub. 6/15 EN
11
©Semiconductor Components Industries, LLC, 2015.

11 Page







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