3.2 Megapixel QXGA Digital Color CMOS Image Sensor
General Description
The ICM320T is a high resolution, low power, small
form factor device 3.2Megapixel digital color CMOS
image sensor. The ICM320T is based on IC Media’s
high performance, wide acceptance angle 2.575µm
TopazPixel™ technology. The ICM320T supports a
1/2.7” optical format with short track lengths of less
than 7.0mm. High responsivity, low noise and image
quality enhancing filters results in excellent image
quality even in low light conditions.
The 2,048x1536 pixel array operates at up to 16fps at
full QXGA resolution, and at progressively higher
frame rates at 1/4 sub-sampled (1024x768) and 1/16
sub-sampled (512x384) resolutions. Low power
consumption and few required external discrete
devices makes the ICM320T ideal for small form
factor, battery-operated mobile consumer devices. It
consumes only 70mW at 15fps at QXGA and standby
current is 8µA.
The ICM320T image sensor’s registers are
programmed through an efficient, two-wire serial
control interface (SIF) enabling flexible control of the
sensor’s operating modes. It outputs 10-bit raw Bayer
(RGB) pixel samples synchronized to the associated
pixel clock (PCLK) as well as vertical and horizontal
synchronization signals (VSYNC/HSYNC).
Applications
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Cellular phone cameras
Personal digital assistants
Digital still cameras and camcorders
Notebook and desktop PC cameras
Video telephony and conferencing
equipment
Security systems
Industrial and environmental systems
Key Performance Parameters
Parameter
Optical format
Active pixels
Physical pixels
Pixel size
Sensor area
Responsivity
Dynamic range
Signal-to-noise ratio
(SNR)
Dark signal
Programmable Gain
Typical Value
1/2.7 inches
2,048 x 1,536
2,122 x 1,556
2.575
µm
x 2.575
µm
5.27mm x 3.96mm
1.4 V/Lux-sec
58 dB
43 dB
5mV/sec
Analog: Up to 4x
Digital: 1/256 to 64x for
individual Bayer pattern
pixels
Minimum: 34
µs
Maximum: ~ 126 s
Up to 16 fps QXGA
1/4-rate: 1,024x768
1/16-rate: 512x384
6 to 64 MHz
2.8 V (analog)
1.8 V (digital core)
1.8-3.3 V (digital I/O)
70 mW (16fps@64 MHz)
8
µA
-20
o
C to +70
o
C
Bare die in wafer form
48-pin CLCC14.22
Exposure time
Frame rate
Subsampling
Input clock frequency
Power supply
Feature Overview
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Wide acceptance angle pixel architecture enabling
compact camera module form factors
Very low active and stand-by power consumption
Very good low light sensitivity
Automatic dark level offset compensation
Image enhancing noise cancellation filters
Fast global reset mechanical shutter support
High frame rate at full image resolution
Excellent color reproduction for vibrant pictures
Low complexity, two-wire serial control interface
On-chip 11-bit column analog-to-digital
converters with correlated double sampling
Programmable exposure time, frame rate, sub-
sampling, window size, analog and digital gain,
horizontal and vertical image inversion, and dead
pixel removal
Power consumption
Power down mode
power
Operating temperature
Packaging
Copyright 2005, IC Media Corporation
http://www.ic-media.com/
3/14/2005
Page
1
3.2 Megapixel QXGA Digital Color CMOS VGA Image Sensor
Preliminary Data Sheet V1.0
ICM320T
Table of Contents
General Description........................................................................................................................................... 1
Digital Gain Control ........................................................................................................................................ 10
Analog Gain Control ....................................................................................................................................... 10
Analog Gain Calibration.................................................................................................................................. 10
Pixel Timing and Function Control ................................................................................................................. 10
Dark Level Compensation ............................................................................................................................... 10
Dead Pixel Filtering......................................................................................................................................... 10
Power Supply Noise Filtering.......................................................................................................................... 11
Fast Global Reset............................................................................................................................................. 11
Output Data Format ......................................................................................................................................... 11
Power Down Mode.......................................................................................................................................... 11
Output Pin State Control.................................................................................................................................. 11
Serial Control Interface (SIF) .......................................................................................................................... 11
Absolute Maximum Ratings ............................................................................................................................ 20
DC Characteristics....................................................................................................................................... 21
AC Characteristics....................................................................................................................................... 23
Mechanical Information .................................................................................................................................. 28
Figure 3. ICM320T Bare Die Pad Diagram............................................................................................................... 6
Figure 6. Fast Global Reset ..................................................................................................................................... 11
Table 3. Absolute Maximum Ratings...................................................................................................................... 20
Table 4. DC Characteristics..................................................................................................................................... 21
Table 5. AC Characteristics..................................................................................................................................... 23
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