AD9948KCPZ

Overview

The AD9948KCPZ is a 10-bit CCD signal processor featuring an integrated analog front end and Precision Timing core. It supports pixel rates up to 25 MHz with a 10-bit A/D converter. The device includes a Correlated Double Sampler (CDS), a 0 dB to 18 dB Pixel Gain Amplifier (PxGA), and a 6 dB to 42 dB Variable Gain Amplifier (VGA). Black level clamping with variable control is provided. The timing driver generates high-speed clocks for RG and H1–H4 outputs with 800 ps resolution. It operates on supply voltages between 2.7 V and 3.6 V, housed in a 40-lead LFCSP package.

Feature Summary

• Integrated analog front end with CDS, PxGA, VGA, and black level clamp
• Precision Timing core allows high-speed clock adjustment with 800 ps resolution
• On-chip 3 V horizontal and reset gate drivers for direct CCD connection
• Programmable via 3-wire serial interface for flexible system configuration

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 packaging type. Confirm availability through authorized distributors as stock levels fluctuate. Ensure the component meets RoHS compliance requirements for the target market. Cross-reference the part number with the latest datasheet revision to validate pinout and electrical specifications before finalizing procurement.

Selection Notes

Select this component for applications requiring a highly integrated CCD signal processor with programmable timing. Ensure the system master clock frequency does not exceed 25 MHz. Verify that the required horizontal clock drive strength can be accommodated by the internal drivers. Check compatibility with the image processor's serial interface protocol. Consider the operating temperature range of –20°C to +85°C for environmental suitability.

Part Context

The AD9948KCPZ belongs to the Analog Devices AD9948 family of CCD signal processors. It is designed to replace discrete analog front-end solutions by integrating amplification, sampling, and conversion into a single chip. The KCPZ suffix indicates a commercial temperature range and lead-free LFCSP packaging. It serves as a complete solution for digitizing CCD sensor outputs in compact imaging systems.

Replacement Considerations

The AD9948KCPZRL is a tape-and-reel version of the same device. The AD9948KCP is the non-lead-free variant. No other cross-model replacements are confirmed in the provided documentation.