AD9948KCP

Overview

The AD9948KCP is a 10-bit CCD signal processor featuring a Precision Timing core with 800 ps resolution. It integrates a Correlated Double Sampler (CDS), a Pixel Gain Amplifier (PxGA) with 0 dB to 18 dB gain, and a Variable Gain Amplifier (VGA) providing 6 dB to 42 dB gain. The device includes a 10-bit 25 MSPS ADC, black level clamp, and on-chip horizontal drivers for RG and H1–H4 clocks. Powered by 2.7 V to 3.6 V supplies, it operates from –20°C to +85°C in a 40-lead LFCSP package.

Feature Summary

• Integrates analog front-end processing including CDS, PxGA, VGA, and 10-bit ADC
• Features Precision Timing core allowing high-speed clock adjustment with 800 ps resolution
• Includes on-chip 3 V horizontal and reset gate drivers capable of directly driving CCD inputs
• Supports programmable horizontal clamping and blanking sequences via serial interface

Applications

• Digital still cameras
• High speed digital imaging applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm lead-free status and reel configuration. The KCP designation indicates the 40-lead LFCSP package and industrial temperature range. Ensure compatibility with system voltage requirements and thermal management needs for the specified operating range.

Selection Notes

Select this component when a highly integrated CCD signal processor is required for space-constrained designs. The built-in timing generator reduces external component count compared to discrete solutions. Verify that the 25 MHz maximum pixel rate and 10-bit resolution meet the target imaging sensor specifications and system bandwidth requirements.

Part Context

This part belongs to the AD9948 family of CCD signal processors designed for digital camera applications. It serves as an analog front-end solution that digitizes CCD outputs while generating necessary timing signals. The KCP variant specifically denotes the lead-free version housed in the compact 40-lead Lead Frame Chip Scale Package suitable for portable devices.

Replacement Considerations

Public confirmed substitutes include AD9948KCPRL, AD9948KCPZ, and AD9948KCPZRL. These variants share identical electrical characteristics and pinouts but differ in packaging options such as tape-and-reel quantities or specific lead-free certifications.