Part # AD9942 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD9942 Dual-Channel 14-Bit CCD Signal Processor with Precision Timing Core Data Sheet (Rev. A)

Part Details:

Dual-Channel, 14-Bit CCD Signal Processor with Precision TimingTM Core AD9942 FEATURES GENERAL DESCRIPTION 40 MHz correlated double sampler (CDS) The AD9942 is a highly integrated dual-channel CCD signal 0 dB to 18 dB, 9-bit variable gain amplifier (VGA) processor for digital still camera applications. Each channel is 40 MSPS analog-to-digital converter (ADC) specified at pixel rates of up to 40 MHz. The AD9942 consists of Optical black clamp (CLPOB) with variable level control a complete analog front end with analog-to-digital conversion, Complete on-chip timing driver combined with a programmable timing driver. The Precision Precision Timing core with <550 ps resolution Timing core allows high speed clocks to be adjusted with On-chip 3 V horizontal and RG drivers 550 ps resolution. 4-phase H-clock mode 100-lead, 9 mm × 9 mm, CSP_BGA package The analog front end uses black level clamping and includes a VGA, a 40 MSPS ADC, and a CDS. The timing driver provides APPLICATIONS the high speed CCD clock drivers for RG_A and RG_B, as well as the H1A to H4A and H1B to H4B outputs. The 6-wire serial Signal processor for dual-channel CCD outputs interface is used to program the AD9942. Digital still cameras Digital video cameras Available in a space-saving, 9 mm × 9 mm, CSP_BGA package, High speed digital imaging applications the AD9942 is specified over an operating temperature range of -25°C to +85°C. FUNCTIONAL BLOCK DIAGRAM REFT_A REFB_A REFT_B REFB_B AD9942 VREF_A VREF_B 14 CDS VGA ADC DOUT_A CCDIN_A 0dB ~ 18dB CLAMP CLAMP 0dB ~ 18dB 14 CDS VGA ADC DOUT_B

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AD9942.pdf Datasheet