Dual-Channel, 14-Bit, CCD Signal Processor with Precision TimingTM Core AD9972 FEATURES OF EACH CHANNEL GENERAL DESCRIPTION 1.8 V analog and digital core supply voltage Correlated double sampler (CDS) with -3 dB, 0 dB, +3 dB, and +6 dB gain 6 dB to 42 dB, 10-bit variable gain amplifier (VGA) 14-bit, 40 MHz analog-to-digital converter (ADC) Black level clamp with variable level control Complete on-chip timing generator Precision Timing core with 400 ps resolution @ 40 MHz On-chip 3 V horizontal and RG drivers 100-lead, 9 mm x 9 mm, 0.8 mm pitch, CSP_BGA package Internal LDO regulator circuitry The AD9972 is a highly integrated, dual-channel CCD signal processor for high speed digital video camera applications. Each channel is specified at pixel rates of up to 40 MHz. The AD9972 consists of a complete analog front end with analog-to-digital conversion combined with a programmable timing driver. The Precision Timing core allows adjustment of high speed clocks with approximately 400 ps resolution at 40 MHz operation. Each analog front end includes black level clamping, CDS, VGA, and a 40 MSPS, 14-bit ADC. The timing driver provides the high speed CCD clock drivers for the RG_A, RG_B, H1_A to H4_A, and H1_B to H4_B outputs. A 3-wire serial interface is used to program each channel of the AD9972. APPLICATIONS Professional HDTV camcorders Professional/high end digital cameras Broadcast cameras Industrial high speed cameras Available in a space-saving, 9 mm x 9 mm, CSP_BGA package, the AD9972 is specified over an operating temperature range of -25C to +85C. FUNCTIONAL BLOCK DIAGRAM REFT_A REFB_A REFT_B REFB_B VREF_A VREF_B AD9972 14 CDS CCDIN_A DOUT_A ADC VGA 6dB ~ 42dB -3, 0, +3, +6dB CLAMP CLAMP 6dB ~ 42dB -3, 0, +3, +6dB CDS 1.8V OUTPUT LDO A 1.8V OUTPUT LDO B RG_A RG_B H1_A TO H4_A H1_B TO H4_B 14 DOUT_B ADC VGA INTERNAL CLOCKS PRECISION TIMING CORE 4 4 CLI_A CLI_B HORIZONTAL DRIVERS SYNC GENERATOR SCK_A INTERNAL REGISTERS HD_A VD_A HD_B VD_B SL_A SDATA_A SL_B SCK_B SDATA_B 05866-001 CCDIN_B Figure 1. For more information on the AD9772, contact Analog Devices, Inc. at: afe.ccd@analog.com. Rev. SpA Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2006 Analog Devices, Inc. All rights reserved. AD9972 NOTES (c)2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05866F-0-6/06(SpA) Rev. SpA | Page 2 of 2