TEF6902AH

Product Summary

The TEF6902AH is a single-chip car radio integrated circuit with FM/AM tuner, stereo decoder, weak signal processing and audio processing. The TEF6902AH can be controlled via the fast-mode I2C-bus (400 kHz) and includes autonomous tuning functions for easy control without microcontroller timing. No manual alignments are required.

Parametrics

TEF6902AH absolute maximum ratings: (1)VCC analog supply voltage on pins VCC, VCCPLL, VCCVCO, VCCRF,; (2)AMMIX2OUT1, AMMIX2OUT2, MIX1OUT1 and MIX1OUT2: -0.3V to +10V; (3)voltage difference between any VCC pins: -0.3V to +0.3V; (4)supply voltage for FM filter and demodulator: -0.3V to VCC+0.3V; (5)digital input voltage on pins SCL, SDA and ADDR: -0.3V +5.5V; (6)Vn voltage on all other pins: -0.3V to VCC + 0.3V; (7)Tstg storage temperature: -40℃ to +150℃; (8)Tj junction temperature: - 150℃; (9)Tamb ambient temperature: -40℃ to +85℃.

Features

TEF6902AH features: (1)FM Radio Frequency (RF) front-end with large dynamic range; (2)Integrated FM channel filter with controlled bandwidth; (3)Fully integrated FM demodulator; (4)Fully integrated stereo decoder with high immunity for birdy noise; (5)FM noise blanker with adaptive detection at MPX and level; (6)Signal quality detection: level, AM wideband, frequency deviation, ultrasonic; (7)noise/adjacent channel; (8)FM weak signal processing: stereo blend, high cut control and soft mute; (9)AM RF Automatic Gain Control (AGC) circuit for external cascode AGC and Positive Intrinsic Negative (PIN) diode AGC; (10)Dual AM noise blanking system; (11)AM weak signal processing: high cut control and soft mute; (12)Low phase noise local oscillator; (13)In-lock detection for optimized adaptive Phase-Locked Loop (PLL) tuning speed; (14)Crystal oscillator reference with low harmonics; (15)Inaudible soft slope tuning mute for AM and FM; (16)Sequential state machine supporting each tuning action; (17)Flexible audio input source selection; (18)Integrated audio processing and tone filtering; (19)Treble, bass and loudness tone control; (20)Volume, balance, fader and input gain control; (21)Audio controls with Audio Step Interpolation (ASI) for pop-free function; (22)Compact Disc (CD) dynamics compression; (23)Volume Unit (VU)-meter audio level read-out.

Diagrams