TDA8784HL/C4,518

ADCs/DACs - Special Purpose Overview

The TDA8784HL/C4,518 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. Analog supply voltage (VCCA) ranges from 4.75 V to 5.25 V, while digital output supply (VCCO) operates between 2.5 V and 5.25 V. Typical power consumption is 483 mW. The component is housed in a 48-lead LQFP package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated Correlated Double Sampling (CDS), AGC, and 10-bit ADC with adjustable bandwidths.
• Fully programmable via a 3-wire serial interface for CDS/AGC settings and standby modes.
• Includes an 8-bit DAC for analog iris control and a 10-bit DAC for ADC input clamp level adjustment.
• 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 against the manufacturer's documentation to confirm specific package variants or tape-and-reel configurations. Ensure that the analog and digital supply voltages match the design requirements, as VCCA requires 5 V operation while VCCO supports 2.5 V to 5.25 V. Confirm pin compatibility for the 48-LQFP footprint during procurement planning.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-speed digitization of CCD sensor signals up to 18 Msps. The integrated CDS and AGC reduce external component count. Ensure the system can provide separate analog and digital ground planes to minimize noise, as recommended in the application information. Verify that the serial interface timing meets the 5 MHz maximum SCLK requirement.

ADCs/DACs - Special Purpose Part Context

This part belongs to the TDA8784 family of analog-to-digital interfaces. The 'HL' designation indicates the LQFP48 plastic low profile quad flat package variant. The suffix '/C4,518' typically denotes specific packaging or environmental compliance details defined by NXP Semiconductors (formerly Philips).

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. Designers should consult NXP Semiconductors for direct replacements or evaluate other CCD interface ICs with similar 10-bit resolution and 18 Msps specifications.