March 2001
LM9627 Color CMOS Image Sensor VGA 30 FPS
General Description
Applications
The LM9627 is a high performance, low power, third inch VGA
CMOS Active Pixel Sensor capable of capturing color digital still
or motion images and converting them to a digital data stream.
• PC Camera
• Digital Still Camera
• Video Conferencing
• Security Cameras
• Toys
In addition to the active pixel array, an on-chip 12 bit A/D conver-
tor, fixed pattern noise elimination circuits and a video gain
amplifier is provided. Furthermore, an integrated programmable
smart timing and control circuit allows the user maximum flexibil-
ity in adjusting integration time, active window size, gain and
frame rate. Various control, timing and power modes are also
provided.
• Machine Vision
Key Specifications
• Array Format
Total: 664H x 504V
Active: 648H x 488V
Total: 4.98mm x 3.78 mm
Active: 4.86 mm x 3.66 mm
• Effective Image Area
Features
• Supplied with micro lenses
• Optical Format
• Pixel Size
1/3“
7.5mm x 7.5mm
8,10 & 12 Bit Digital
57dB
• Video Outputs
• Dynamic Range
• FPN
• Video or snapshot operations
• Programmable pixel clock, inter-frame and inter-line delays.
• Programmable partial or full frame integration
• Programmable gain adjustment
• Horizontal & vertical sub-sampling (2:1 & 4:2)
• Windowing
• External snapshot trigger & event synchronisation signals
• Auto black level compensation
• Flexible digital video read-out supporting programmable:
0.35%
• Sensitivity
red
14.5 kLSBs/lux.s
7.5 kLSBs/lux.s
5.1 kLSBs/lux.s
green
blue
• Quantum Efficiency
• Fill Factor
27%
47% (no micro lens)
Bayer pattern
48 LCC
-
-
polarity for synchronisation and pixel clock signals
leading edge adjustment for horizontal synchronization
• Color Mosaic
• Package
• Programmable via 2 wire I2C compatible serial interface
• Power on reset & power down mode
• Single Supply
• Power Consumption
• Operating Temp
3.3 V
90 mW
0 to 50oC
System Block Diagram
Storage
LM9627
lens
12bit digital image
I2C compatible
Digital Image
Processor
event trigger
snapshot
ã 2000 National Semiconductor Corporation
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