XRD98L63 CCD Image Digitizers with CDS, PGA and 12-Bit A/D
The XRD98L63 is a complete, low power CCD Image Digitizer for digital motion and still cameras. The Correlated Double Sampler (CDS) subtracts the CCD output signal black level from the video level. Common mode and power supply noise are rejected by the differential CDS input stage. The PGA is digitally controlled with 10-bit resolution on a dB scale, resulting in a gain range of 6dB to 36dB with 0.047dB per LSB of the gain code. The PGA can be programmed to switch gain every pixel, in a user defined pattern of up to 4 different gains. Our proprietary control logic allows a camera system to set the desired gain ratios for color balance. The system gain can then be changed by writing to a single register, and the color balance will be maintained. The black level auto-calibration circuit averages the results of the Optical Black pixels to compensate for any internal offset of the XRD98L63 as well as black level offset from the CCD. The calibration logic uses proprietary digital filters to eliminate line-to-line offset noise and noise due to hot pixels in the Optical Black areas
| 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 |
| XRD98L63 数据资料DataSheet下载:pdf | Rev.V2 | 2 页 |
