AD9925

www.DataSheet4U.com CCD Signal Processor with Vertical Driver and Precision Timing ™ Generator AD9925 FEATURES Integrated 10-channel V-driver Register-compatible with the AD9991 and AD9995 3-field (6-phase) vertical clock support 2 additional vertical outputs for advanced CCDs Complete on-chip timing generator Precision Timing core with <600 ps resolution Correlated double sampler (CDS) 6 dB to 42 dB 10-bit variable gain amplifier (VGA) 12-bit 36 MHz ADC Black level clamp with variable level control On-chip 3 V horizontal and RG drivers 2-phase and 4-phase H-clock modes Electronic and mechanical shutter support On-chip driver for external crystal On-chip sync generator with external sync input 8 mm × 8 mm CSPBGA package with 0.65 mm pitch GENERAL DESCRIPTION The AD9925 is a complete 36 MHz front end solution for digital still camera and other CCD imaging applications. Based on the AD9995 product, the AD9925 includes the analog front end and a fully programmable timing generator (AFETG), combined with a 10-channel vertical driver (V-driver). A Precision Timing core allows adjustment of high speed clocks with approximately 600 ps resolution at 36 MHz operation. The on-chip V-driver supports up to 10 channels for use with 3-field (6-phase) CCDs. Two additional vertical outputs can be used with CCDs that contain advanced video readout modes. Voltage levels of up to +15 V and −8 V are supported. The analog front end includes black level clamping, CDS, VGA, and a 12-bit ADC. The ...