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參數(shù)資料
| 型號： | ICM200E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Megapixel (UXGA) Digital Color CMOS Image Sensor |
| 中文描述： | 百萬像素（UXGA）下數(shù)字彩色CMOS圖像傳感器 |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 679K |
| 代理商： | ICM200E |
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IC M200E
2 Megapixel (UXGA) Digital Color CMOS Image Sensor
Preliminary Data Sheet V1.1
be adjusted through the registers. The line and
frame timing can be adjusted through registers
0xA1 and 0xA2 for width and registers 0xA3
and 0xA4 for height.
Clock and PLL
The ICM200E image sensor has a built-in phase-
locked loop (PLL). It enables the sensor’s
flexibility to work under different external clock
frequencies. The pixel clock, PCLK, is a
multiple of the external clock. Although the
output data is 10 bits, the internal ADC is 11 bits
to minimize quantization noise. Therefore, the
ADC clock is running at twice the frequency of
the PCLK.
Power Down Mode
When the POWERDN pin is de-asserted, the
chip goes into power down mode. In this state,
the internal clock is stopped. The POWERDN
pin is not synchronized with the clock. The
power down takes effect immediately. On the
assertion of the POWERDN pin, the sensor must
wait at least 10
μ
s to leave the power down mode
to prevent the sensor from operating in an
unstable state.
Serial Control Interface (SIF)
The serial control interface of the ICM200E
image sensor is fully compatible with the I2C
interface. Register programming is through the
SIF interface (SCL and SDA pins). The default
C opyright 2004, IC Media C orporation
http://www.ic-media.com/
9/22/2004
Page
14
7-bit SIF device address is 0x20. The SIF ID pin
can configure the last bit of the device address.
The ICM200E image sensor can operate in either
SIF master mode or in slave mode right after
power up, depending on the pull-up or pull-down
of the MSSEL pin.
When the MSSEL pin is pulled-down during
power up, the ICM200E image sensor’s SIF
interface is operated as a SIF slave device
waiting to be controlled by an external SIF
master such as a microprocessor. When MSSEL
is pulled-up during power up, the SIF interface is
first acting as a SIF master device trying to read
from an external SIF EEPROM. After that, it
will return to slave mode. If the sensor’s slave
address is 0x21, then the EEPROM address will
be 0x51. If the sensor’s slave address is 0x20,
then the EEPROM address will be 0x50.
In the auto-loading mode, the ICM200E image
sensor will not respond to ACK for the serial bus
command until the EEPROM has completed
loading.
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