XRD9825 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control

The XRD9825 is a complete linear CIS or CCD sensor signal processor on a single monolithic chip. The XRD9825 includes a high speed 14-bit resolution ADC, a 6-bit Programmable Gain Amplifier with gain adjustment 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.

技术特性
  • 16-Bit Resolution
  • One-channel 12MSPS Pixel Rate
  • Triple-channel 4MSPS Pixel Rate
  • 6-Bit Programmable Gain Amplifier
  • 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
  • Serial Load Control Registers
  • Low Power CMOS: 200mW-typ
  • Low Cost 20-Lead SOIC Package
  • USB Compliant
  • Pb-Free, RoHS Compliant Versions Offered
应用领域 APPLICATION
  • Color and Grayscale Flatbed Scanners
  • Color and Grayscale Sheetfed Scanners
  • Multifunction Peripherals
  • Digital Color Copiers
  • General Purpose CIS or CCD Imaging
  • Low Cost Data Acquisition
  • Simple and Direct Interface to Canon 600 DPI Sensors
技术指标
频道数量 3
CDS(CCD Input) Yes
S&H/T&H(CIS Input) Yes
PGA解析度 6-Bit
抵消范围 8-Bit
A/D解析度 16-Bit
A/D速度 12-MSPS
电压供应 3V or 5V
电力(Typ) 200mW
封装 SOIC-20
订购信息 Ordering Information
器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
XRD9825ACD-F 0 70 Active
XRD9825ACU-F 0 70 Active
功能框图 Functional Block Diagram

XRD9825 功能框图

 

应用技术支持与电子电路设计开发资源下载 版本信息 大小
XRD9825 数据资料DataSheet下载:pdf Rev.V2 2 页