AD9849AKSTRL

Overview

The AD9849AKSTRL is a highly integrated CCD signal processor featuring a 12-bit, 30 MHz A/D converter and an on-chip timing driver. It includes a Correlated Double Sampler (CDS), a Pixel Gain Amplifier (PxGA) with -2 dB to +10 dB range, and a Variable Gain Amplifier (VGA) providing 2 dB to 36 dB gain. The device operates from 2.7 V to 5.5 V analog supplies and 3.0 V to 5.5 V digital supplies for H-drivers. It supports internal or external horizontal pulse generation via a 3-wire serial interface and functions within a temperature range of –20°C to +85°C.

Feature Summary

• Integrates a complete analog front end with a 12-bit A/D converter and programmable timing driver for direct CCD interfacing.
• Features Precision Timing core allowing high-speed clock adjustment with approximately 1 ns resolution.
• Includes on-chip 5 V horizontal and reset gate drivers capable of driving capacitive loads up to 100 pF.

Applications

• Digital still cameras
• CCD image sensor systems

Procurement Notes

Verify the specific suffix 'RL' against official documentation to confirm reel packaging status, as datasheets may list standard tape-and-reel designations differently. Ensure the operating voltage requirements match the system's 5 V digital supply constraints for the AD9849 variant.

Selection Notes

Select the AD9849 over the AD9848 when higher pixel rates up to 30 MHz and 12-bit resolution are required. Confirm that the application requires on-chip 5 V drive capability for horizontal clocks, which distinguishes it from the 3 V limited AD9848 model.

Part Context

This component belongs to the AD9848/AD9849 family of CCD signal processors designed for consumer imaging applications. It shares architectural similarities with the AD9848 but offers enhanced speed and resolution capabilities suitable for higher-performance digital camera modules requiring precise timing control.

Replacement Considerations

The AD9848AKSTRL serves as a lower-speed alternative with 10-bit resolution and 20 MHz operation. Verify compatibility regarding drive voltage levels and data bus width differences before substitution.