
Exar Corporation
GENERAL DESCRIPTION
The XRD98L61 is a complete, low power CCD Image Digitizer for digital motion and still cameras. The product includes a high bandwidth differential Correlated Double Sampler (CDS), 10-bit digitally Programmable Gain Amplifier (PGA), 12-bit Analog-to-Digital Converter (ADC) and improved digitally controlled black level auto-calibration circuitry with programmable pixel averager, hot pixel clipper, and a DNS filter.
FEATURES
• 12-Bit Resolution ADC
• 20MHz Sampling Rate
• 10-Bit Programmable Gain: 0dB to 36dB PGA
• Digitally Controlled Offset-Calibration with Pixel Averager and Hot Pixel Clipper
• Widest Black Level Calibration Range at Maximum Gain
• DNS Filter Removes Black Level Digital Noise
• Manual Control of Offset DAC via Serial Port for use with High-speed Scanners
• 1ns/step Programmable Aperture Delay on SPIX, SBLK and ADCLK Sampling Clocks
• Single 2.7V to 3.6V Power Supply
• Optimized Power Consumption down to 125mW with External Resistor
• Low Power for Battery Operation
• Two Serially Controlled 8-Bit D/A Converters
• 0.1mA Stand-by Mode Current
• Three-state Digital Outputs
• 2,000V ESD Protection
• 48-Pin TQFP Package
APPLICATIONS
• Mega-pixel Digital Still Cameras
• Digital Camcorders
• 3-CCD Professional/Broadcast Camera
• Line Scan Cameras
• PC Video Cameras
• CCTV/Security Cameras
• Industrial/Medical Cameras
• 2D Bar Code Readers
• High Speed Scanners
• Digital Copiers