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| 型号： | XRD9825EVAL |
| 厂商： | Exar Corporation |
| 文件页数： | 1/33页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XRD9825 |
| 标准包装： | 1 |
| 系列： | * |
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EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
(510) 668-7000 FAX (510) 668-7017 www.exar.com
XRD9825
16-Bit Linear CIS/CCD Sensor
Signal Processor with Serial Control
May 2000-3
FEATURES
16-Bit Resolution
One-channel 12MSPS Pixel Rate
Triple-channel 4MSPS Pixel Rate
6-BitProgrammableGainAmplifier
8-Bit Programmable Offset Adjustment
CIS or CCD Compatibility
Internal Clamp for CIS or CCD AC Coupled
Configurations
No Missing Codes at 10MHz ADC Clock
3.3V or 5V Operation & I/O Compatibility
SerialLoadControlRegisters
Low Power CMOS: 200mW-typ
Low Cost 20-Lead Packages
USBCompliant
APPLICATIONS
Color and Grayscale Flatbed Scanners
Color and Grayscale Sheetfed Scanners
MultifunctionPeripherals
DigitalColorCopiers
General Purpose CIS or CCD Imaging
Low Cost Data Acquisition
Simple and Direct Interface to Canon 600 DPI
Sensors
GENERAL DESCRIPTION
The XRD9825 is a complete linear CIS or CCD sensor
signal processor on a single monolithic chip. The
XRD9825 includes a high speed 16-bit resolution ADC,
a 6-bit Programmable Gain Amplifier with gain adjust-
ment of 1 to 10, and 8-bit programmable input referred
offset calibration range of 800mV.
In the CCD configuration the input signal is AC coupled
with an external capacitor. An internal clamp sets the
black level. In the CIS configuration, the clamp switch
can be disabled and the CIS output signal is DC
coupled from the CIS sensor to the XRD9825. The CIS
signal is level shifted to VRB in order to use the full
range of the ADC. In the CIS configuration the input can
also be AC coupled similar to the CCD configuration.
This enables CIS signals with large black levels to be
internally clamped to a DC reference equal to the black
level. The DC reference is internally subtracted from
the input signal.
The CIS configuration can also be used in other
applications that do not require CDS function, such as
low cost data acquisition.
Rev. 1.00
ORDERING INFORMATION
PackageType
TemperatureRange
PartNumber
20-LeadSOIC
0°C to +70°C
XRD9825ACD
20-LeadSSOP
0°C to +70°C
XRD9825ACU
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRD9826 | 制造商:EXAR 制造商全称:EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9826ACD | 制造商:EXAR 制造商全称:EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control |
| XRD9826ACD-F | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| XRD9826ACU | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| XRD9826ACU-F | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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