AD9990BBCZ

Overview

The AD9990BBCZ is a dual-channel, 14-bit CCD signal processor and precision timing core manufactured by Analog Devices Inc. It integrates an analog front end with analog-to-digital conversion and a programmable timing generator for two-channel output CCDs. Each channel supports operation up to 32 MHz. The device features a Precision Timing core with approximately 488 ps resolution at 32 MHz. It includes internal LDO regulators, 24 programmable vertical clock signals, a correlated double sampler (CDS), a variable gain amplifier (VGA) with gains from 6 dB to 42 dB, and black level clamping. The component operates within a temperature range of -25°C to +85°C and is housed in a 112-ball CSP_BGA package measuring 8 mm × 8 mm with a 0.65 mm pitch.

Feature Summary

• Integrates a complete analog front end with 14-bit ADCs and a full-function programmable timing generator for dual-channel CCD control.
• Features a Precision Timing core enabling high-speed clock adjustment with approximately 488 ps resolution.
• Includes on-chip driver capabilities for external crystals, horizontal drivers, RG drivers, and general-purpose outputs for system support.

Applications

• Digital still cameras

Procurement Notes

Verify the specific revision status and availability through official Analog Devices channels or authorized distributors. Confirm that the 112-ball CSP_BGA package dimensions and pinout match the target PCB layout requirements. Ensure environmental compliance documentation aligns with regional regulations. Check for any recent product change notifications regarding manufacturing updates.

Selection Notes

Select this component when designing digital still camera systems requiring integrated CCD signal processing and precise timing generation. Consider the 32 MHz per channel speed limit and the 14-bit resolution for image quality requirements. Evaluate the need for the integrated Precision Timing core versus external timing solutions based on jitter specifications and system complexity.

Part Context

The AD9990 belongs to the family of CCD signal processors designed by Analog Devices. It serves as a specialized solution for managing the complex interface between charge-coupled devices and digital processing units. This integration reduces the bill of materials and board space required for traditional discrete CCD driver designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.