TDA8784HL/C4,118

ADCs/DACs - Special Purpose Overview

The TDA8784HL/C4,118 is a 10-bit analog-to-digital interface designed for CCD cameras. It integrates a correlated double sampling (CDS) circuit, an automatic gain control (AGC) amplifier, and a low-power 10-bit ADC with a reference regulator. The device supports a maximum sampling frequency of 18 MHz. Key electrical parameters include analog and digital supply voltages of 4.75 V to 5.25 V, and a digital output supply range of 2.5 V to 5.25 V. Typical power consumption is 483 mW. The AGC provides programmable gain from 4.5 dB to 34.5 dB in 0.1 dB steps, while the CDS bandwidth is adjustable from 4 MHz to 120 MHz.

ADCs/DACs - Special Purpose Feature Summary

• Integrated Correlated Double Sampling (CDS), AGC, and 10-bit ADC with reference regulator
• Fully programmable via a 3-wire serial interface for gain, bandwidth, and standby modes
• Includes 8-bit and 10-bit DACs for analog settings and clamp level control
• Supports TTL compatible inputs and TTL/CMOS compatible outputs

ADCs/DACs - Special Purpose Applications

• CCD camera systems
• PC cameras
• Surveillance cameras
• Camcorders
• Digital still cameras

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix 'C4,118' against official NXP documentation to confirm specific tape-and-reel packaging or variant details. Ensure compatibility with the standard LQFP48 package dimensions (7x7x1.4 mm). Confirm that the component meets the required operating temperature range of -20°C to +75°C for the intended application environment.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-speed digitization of CCD sensor signals up to 18 Msps. Ensure the design accommodates separate analog (VCCA) and digital (VCCD/VCCO) power supplies for optimal noise performance. Verify that the system timing generator can provide the necessary SHP, SHD, CLK, and clamp pulses within the specified voltage levels and timing constraints.

ADCs/DACs - Special Purpose Part Context

The TDA8784 is part of the Philips/NXP integrated circuits portfolio for video signal processing. It supersedes earlier data specifications from September 1999. The device is manufactured in a plastic low profile quad flat package (LQFP48) with 48 leads. It is designed to replace discrete CDS and AGC solutions by integrating these functions into a single low-power chip.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided datasheet.