TDA7406 ,CAR RADIO SIGNAL PROCESSORFeatures:■ Input multiplexer– Pseudo differential CDC stereo input, programmable as single-ended in ..
TDA7406T ,CAR RADIO SIGNAL PROCESSORFeatures:■ Input multiplexer– Pseudo differential CDC stereo input, programmable as single-ended in ..
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TDA7406
CAR RADIO SIGNAL PROCESSOR
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TDA7406TApril 2001
Audio processor: 4 STEREO INPUTS 4 MONO INPUTS VOLUME CONTROL 7 BAND EQUALIZER FILTER CONTROL HIGH PASS FILTER FOR SUBWOOFER
APPLICATION DIRECT MUTE AND SOFT MUTE INTERNAL BEEP GENERATION 4 INDEPENDENT SPEAKER OUTPUTS SOFT STEP SPEAKER CONTROL SUBWOOFER OUTPUT 7 BAND SPECTRUM ANALYZER FULL MIXING CAPABILITY PAUSE DETECTOR
Stereo decoder: RDS MUTE NO EXTERNAL ADJUSTMENTS AM/FM NOISEBLANKER WITH SEVERAL
TRIGGER CONTROLS PROGRAMMABLE MULTIPATH DETECTOR QUALITY DETECTOR OUTPUT
Digital control:I2 C-BUS INTERFACE
DESCRIPTIONThe device includes a high performance audio pro-
cessor with 7 bands equalizer and spectrum analyzer
plus a stereo decoder-noiseblanker. The whole low
frequency signal processing necessary for state-of-
the-art as well as future car radios is therefore provid-
ed. The digital control allows a full programming not
only of the audioprocessor and filter characteristics
but also in the stereodecoder part especially for the
adaptation to different IF-devices.
CAR RADIO SIGNAL PROCESSOR
PIN CONNECTION (Top view)
TDA7406T 2/49
SUPPLY
THERMAL DATA
ABSOLUTE MAXIMUM RATINGS
ESD:All pins are protected against ESD according to the MIL883 standard.
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TDA7406T
BLOCK DIAGRAM
TDA7406T 4/49
AUDIOPROCESSOR PART
Features: Input multiplexer Pseudo differential CDC stereo input, programmable as single-ended input. 3 single-ended stereo inputs. 4single-ended mono inputs. Input gain adjust 0...15dB in 1dB steps. Internal offset-cancellation (autozero). Beep Internal beep generator with 4 different frequencies. Mixing stage Beep, Phone- and Navi-Input mixable to all speaker outputs. TIM or tuner (FM/AM) programmable as fourth mixing source. Level control range of 95dB (+15...-79db). Loudness Loudness programmable center frequency and filter slope. 0...19dB attenuation in 1dB steps. selectable flat-mode (constant attenuation). Volume Gain/Attenuation with 0.5dB step resolution. soft-step control with programmable blend times. 110dB range (+32...-79db). Equalizer Seven bands equalizer with 2nd order frequency response switch-capacitors filters. Center frequency programmable for lowest and highest filter. Programmable quality factor in four steps for each filter. ±15dB range with 1dB steps. Spectrum analyzer seven bandpass 2nd order frequency response switch-capacitors filters Programmable quality factor for different visual appearance Analog output Controlled by external serial clock High pass Filter 2nd order Butterworth high pass with programmable cut-off frequency Selectable flat-mode Speakers 4 independent speaker controls with separate mute. Control range 95dB (+15...-79dB) in 1dB steps with soft step. 4 independent programmable mix inputs with 50% mixing ratio Subwoofer Single-ended monaural output control range 95dB (+15...-79dB) in 1dB steps with soft step. separate mute Mute functions direct mute digitally controlled Soft mute with 4 programmable mute-time
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TDA7406T
Table 1. ELECTRICAL CHARACTERISTICS(VS=9V; Tamb=25°C; RL=10kΩ; all gains=0dB; f=1kHz; unless otherwise specified)
INPUT SELECTOR
DIFFERENTIAL STEREO INPUTS
BEEP CONTROL
MIXING CONTROL
LOUDNESS CONTROL
VOLUME CONTROL
