AD9925BBCZ

Overview

The AD9925BBCZ is a CCD signal processor featuring an integrated analog front end and precision timing generator. It includes a 10-channel vertical driver supporting up to +15 V and −8 V levels, with two additional outputs for advanced CCDs. The analog chain comprises a correlated double sampler, a variable gain amplifier offering 6 dB to 42 dB range, and a 12-bit ADC operating at 36 MHz. A Precision Timing core provides high-speed clock generation with approximately 600 ps resolution. The device supports 3-field (6-phase) vertical clocks, electronic and mechanical shutter control, and on-chip horizontal drivers. Configuration is managed via a 3-wire serial interface.

Feature Summary

• Integrated 10-channel vertical driver with extended voltage support for direct CCD connection
• Complete analog front end including black level clamp, CDS, VGA, and 12-bit ADC
• Precision Timing core enabling fine-resolution adjustment of high-speed CCD clocks
• On-chip timing generator providing all necessary horizontal, vertical, and substrate signals

Applications

• Digital still cameras
• Digital video camcorders
• CCD camera modules

Procurement Notes

Verify the specific suffix BBCZ against the manufacturer's current ordering guide to confirm package type and temperature rating. Ensure the component matches the Rev. A datasheet specifications. Confirm RoHS compliance status through official documentation before procurement.

Selection Notes

Select this component for applications requiring a complete CCD interface solution with integrated timing generation. Verify that the required vertical driver voltage levels and channel count align with the target CCD sensor specifications. Ensure the system design accommodates the 8 mm × 8 mm CSPBGA package dimensions and thermal requirements.

Part Context

The AD9925 is based on the AD9995 product architecture and serves as a comprehensive front-end solution for digital imaging systems. It combines the analog front end with a fully programmable analog front-end timing generator. This integration reduces external component count and simplifies the design of CCD-based camera systems.

Replacement Considerations

The AD9991 and AD9995 are register-compatible alternatives within the same family. Verify functional equivalence regarding vertical driver channels and timing capabilities before substitution.