AD9928BBCZ

Overview

The AD9928BBCZ is a dual-channel, 14-bit CCD signal processor featuring an integrated timing generator and 18-channel vertical driver. It operates with a 1.8 V analog front-end core and includes internal LDO regulators for 3 V system compatibility. The device supports up to 24 vertical clock signals internally and provides seven general-purpose outputs for shutter control. It incorporates a Precision Timing core offering approximately 390 ps resolution at 40 MHz operation. The component is housed in a 128-ball CSP_BGA package measuring 9 mm × 9 mm with a 0.65 mm pitch.

Feature Summary

• Dual analog front ends with black level clamping, correlated double sampling, variable gain amplification, and 14-bit ADCs
• Programmable timing generator supporting up to 24 vertical clock signals and on-chip high voltage drivers
• Precision Timing core enabling fine adjustment of high-speed clocks
• Internal low-dropout regulators ensuring compatibility with 3 V systems

Applications

• High speed digital imaging
• Surveillance cameras
• Industrial cameras

Procurement Notes

Verify the specific grade required, as a 60 MHz variant (AD9928BBCZ-60) exists within the product family. Confirm that the standard version meets the necessary operational frequency specifications for the target design. Ensure the 128-ball CSP_BGA footprint aligns with the PCB layout constraints. Validate power supply requirements against the internal regulator capabilities.

Selection Notes

Select this component for applications requiring a highly integrated solution for two-channel CCD sensors. The internal timing generator reduces external component count by providing necessary CCD clocks and vertical drivers. Consider the 1.8 V core voltage and internal LDOs when designing the power distribution network. The serial interface simplifies configuration compared to parallel register sets found in older models.

Part Context

This part belongs to the AD9928 series of CCD signal processors designed for digital still-image camera applications. It shares register similarities with the AD9920A and AD9990, facilitating potential migration or design reuse. The device integrates both the analog front end and the timing generation logic into a single package to simplify system architecture.

Replacement Considerations

The AD9928BBCZ-60 is a verified alternative within the same family, distinguished by its 60 MHz grade specification. Other parts in the broader Analog Devices portfolio may offer different channel counts or integration levels but require separate verification of pinout and functional compatibility.