AD9949KCP

Overview

The AD9949KCP is a highly integrated CCD signal processor designed for digital still camera applications. It operates at pixel rates up to 36 MHz and integrates a complete analog front end with A/D conversion alongside a programmable timing driver. The device features a 12-bit, 36 MSPS ADC, a correlated double sampler (CDS), a pixel gain amplifier (PxGA) with 0 dB to 18 dB range, and a variable gain amplifier (VGA) offering 6 dB to 42 dB gain. It includes black level clamping, on-chip 3 V horizontal and RG drivers, and a Precision Timing core providing clock adjustment with less than 600 ps resolution. Configuration is managed via a 3-wire serial interface.

Feature Summary

• Integrates a 12-bit analog-to-digital converter with a complete analog front end including CDS, PxGA, and VGA.
• Features a Precision Timing core that allows high-speed clock adjustment with sub-nanosecond resolution.
• Includes on-chip output drivers capable of directly driving CCD inputs for RG and H1 to H4 signals.
• Supports flexible horizontal sequence control with programmable CLPOB, PBLK, and HBLK patterns.

Applications

• Digital still cameras
• High speed digital imaging applications

Procurement Notes

Verify the specific suffix KCP against the manufacturer's ordering guide to confirm package type and temperature grade. Ensure compatibility with the required 40-lead LFCSP footprint during PCB layout. Check current availability status as component supply may vary by region or distributor.

Selection Notes

Select this component when a single-chip solution for CCD signal processing is required. It is suitable for systems needing precise timing generation and high-speed data acquisition up to 36 MHz. Consider the 40-lead LFCSP package constraints and thermal dissipation requirements for the final design.

Part Context

The AD9949 belongs to Analog Devices' family of CCD signal processors. It serves as an analog front-end solution that simplifies system design by combining signal conditioning, digitization, and timing generation in one package. This integration reduces board space and component count compared to discrete solutions.

Replacement Considerations

The AD9949A is a variant within the same family that supports CCD line lengths greater than 4096 pixels due to different H-counter behavior. Verify register compatibility and timing specifications before substituting.