TDA9852H/V2,557

Overview

The TDA9852H is an I2C-bus controlled BTSC stereo/SAP decoder and audio processor designed for consumer audio applications. It integrates a stereo decoder with automatic channel separation adjustment, SAP demodulation, and a dbx noise reduction circuit. The device operates on an 8V to 9V supply and features a 44-pin QFP package. Key electrical parameters include a volume control range of +16 dB to -71 dB, an input level adjustment of -3.5 dB to +4.0 dB, and a typical signal-to-noise ratio of 60 dB (CCIR) at the line output.

Feature Summary

• I2C-bus controlled automatic alignment for stereo channel separation
• Integrated BTSC stereo/SAP decoder with ceramic resonator PLL
• Built-in dbx noise reduction circuit compliant with BTSC specifications
• Audio processor with automatic volume level control (AVL) and loudness boost

Applications

• TV sets
• VCRs
• Multimedia devices

Procurement Notes

Verify component authenticity as this part may be discontinued or obsolete. Confirm package integrity and pin compatibility before integration. Check for RoHS compliance status in current distributor listings. Ensure supply voltage matches the 8V-9V requirement. Review datasheet revision history for any functional updates.

Selection Notes

Select this component for designs requiring integrated BTSC decoding and audio processing. Ensure the PCB layout supports the 44-QFP package dimensions. Verify that the microcontroller interface supports the required I2C protocol for configuration. Consider external capacitor values for AVL timing and dbx filter alignment during design.

Part Context

The TDA9852H belongs to the Philips/NXP TDA98xx series of audio processors. It is the QFP44 package variant of the TDA9852, which is also available in an SDIP42 package. This series was widely used in analog television and video recording equipment for high-fidelity audio decoding.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Designers should evaluate newer NXP audio processors or discrete solutions if the TDA9852H is unavailable. Check for pin-compatible alternatives only if explicitly documented by the manufacturer.