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LM9637BCEA
LM9637 Monochrome CMOS Image Sensor VGA 68 FPS
ADVANCE INFORMATION
LM9637 Monochrome CMOS Image Sensor VGA 68 FPS
General DescriptionThe LM9637 is a high performance, low power, 1/4" VGA CMOS
Active Pixel Sensor capable of capturing monochrome still or
motion images and converting them to a digital data stream.
Excellent image quality is achieved by integrating a high perfor-
mance analog signal processor comprising of a high speed 10
bit A/D convertor, fixed pattern noise elimination circuits and a
programmable gain amplifier. The offset and black level can be
automatically adjusted on chip using a full loop black level com-
pensation circuit.
Furthermore, a programmable smart timing and control circuit
allowing the user maximum flexibility in adjusting integration
time, active window size, gain, frame rate. Various control, tim-
ing and power modes are also provided.
Features Master and slave mode operation Progressive scan read out with horizontal and vertical flip Programmable Exposure: Master clock divider Inter row delay Inter frame delay Partial frame integration Programmable gain amplifier Full automatic servo loop for black level & offset adjustment
on each gain channel Horizontal & vertical sub-sampling (2:1 & 4:2) with averaging Windowing Programmable pixel clock, inter-frame and inter-line delays I2 C compatible serial control interface Power on reset & power down mode
Applications Security Camera Machine Vision Barcode Scanners Biometrics
Key SpecificationsArray Format Total: 488 x 672
Active: 488 x 648
Effective Image Area Total: 2.93mm x 4.03mm
Active: 2.93mm x 3.89mm
Optical Format 1/4"
Pixel Size 6.0μm x 6.0μm
Video Outputs 8 & 10 Bit Digital
Frame Rate 68 frames per second
Dynamic Range 57 dB
Electronic Shutter Rolling Reset
FPN 0.5%
PRMU 1.7%
Sensitivity 2.40 volts/lux.s
Fill Factor 49%
Micro Lens none
Package 32 LCC
Single Supply 3.0V +/-10%
Power Consumption 130mW
Operating Temp -10o C to 50oC
Overall Chip Block DiagramColumn CDS
al
egi
ita
ideo
Le
pen
ion
Amp
d[9:0]
pclk
hsync
vsync
ode
10 bit A/D
snapshot
extsync
APS Array I2 C Compatible
Serial I/F
Register
Bank
sclk sda sadr
POR Power clk genControl
mclkpwdresetb
Master Sensor Controller
+/-
onoMAY 2002
