GENERAL DESCRIPTION

The AD9928 is a highly integrated CCD signal processor for digital still-image camera applications. It includes a dual analog front end with analog-to-digital conversion, combined with a fullfunction, programmable timing generator and an 18-channel vertical driver (V-driver) for a 2-channel output CCD. The timing generator is capable of supporting up to 24 vertical clock signals internally, and the on-chip V-driver supports up to 18 high voltage outputs. A Precision Timing® core allows adjustment of high speed clocks with approximately 390 ps resolution at 40 MHz operation. The AD9928 also contains seven general-purpose outputs, which can be used for shutter and system functions.

FEATURES

60 MHz grade available (AD9928BBCZ-60)

Registers similar to AD9920A and AD9990

Timing generator with 18-channel V-driver

Serial data output with reduced range LVDS interface

1.8 V dual AFE core

Internal LDO regulators for compatibility with 3 V systems

Correlated double sampler (CDS) with −3 dB, 0 dB, +3 dB,

and +6 dB gain

6 dB to 42 dB, 10-bit variable gain amplifier (VGA)

14-bit, 40 MHz analog-to-digital converter (ADC)

Black level clamp with variable level control

Precision Timing core with ~390 ps resolution at 40 MHz

On-chip 3 V horizontal and RG drivers

General-purpose outputs (GPOs) for shutter support

On-chip driver for external crystal

128-ball CSP_BGA package, 9 mm × 9 mm, 0.65 mm pitch

APPLICATIONS

High speed digital imaging

Surveillance cameras

Industrial cameras