TEF6892H/V3,518

Overview

The TEF6892H is a monolithic BiMOS integrated circuit designed as a car radio signal processor. It integrates stereo decoding, weak signal processing, and ignition noise blanking for AM and FM bands. The device includes an RDS/RBDS demodulator and decoder, input selector, and tone/volume control. Operating from an 8 V to 9 V supply, it features a Fast mode 400 kHz I²C-bus interface compatible with 2.5 V to 5 V logic levels. Packaged in a 44-QFP (10x10 mm) surface-mount case, it supports automotive applications within a -40°C to +85°C temperature range.

Feature Summary

• Integrated FM/AM noise blanker and multipath/weak signal processing with soft mute and high cut control
• RDS/RBDS demodulator and decoder utilizing tuner reference frequency without external crystal
• Audio tone and volume control including loudness, bass, treble, fader, and balance with Audio Step Interpolation
• Input selector supporting four sources: CD, TAPE, PHONE, and internal AM/FM

Applications

• Car radio integrated signal processor
• Automotive audio systems requiring AM/FM reception and post-processing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel configuration. Ensure compatibility with the system's I²C bus voltage levels, as the device interfaces with logic ranging from 2.5 V to 5 V while operating at 8 V to 9 V supply voltage.

Selection Notes

Select this component for applications requiring a single-chip solution for AM/FM audio processing, stereo decoding, and RDS handling. The device eliminates the need for external components except coupling capacitors. Confirm that the design accommodates the 44-lead QFP package footprint and the required 8 V to 9 V power supply rail.

Part Context

The TEF6892H belongs to the NICE family of car radio ICs, often paired with TEA684x tuner ICs. It serves as a post-processing unit that handles audio quality enhancement, noise reduction, and data decoding for broadcast signals in vehicle infotainment architectures.

Replacement Considerations

The TEF6894H is a functionally similar part within the same product family, offering comparable signal processing capabilities in the same package.