TDA7409 Datasheet, PDF (1/25 Pages) STMicroelectronics – CARRADIO-SIGNAL-PROCESSOR

TDA7409
CARRADIO-SIGNAL-PROCESSOR
s 4 STEREO INPUTSSOFTSTEP-VOLUME
s BASS, TREBLE AND LOUDNESS CONTROL
s DIRECT MUTEAND SOFTMUTE
s INTERNAL BEEP
s FOUR INDEPENDENT SPEAKER-OUTPUTS
s SUBWOOFER STEREO OUTPUT
s DIGITAL CONTROL:
q I²C-BUS INTERFACE
q AUDIO-FILTER CHARACTERISTICS
PROGRAMMABLE
DESCRIPTION
The TDA7409 is a high performance signal proces-
sor specificall designed for car radio applications.
The device includes a high performance audiopro-
cessor with fully integrated audio filters. The digital
control allows a programming in a wide range of all
the filter characteristics. By the use of a BICMOS-
BLOCK DIAGRAM
SO20
ORDERING NUMBER: TDA7409D
process and a linear signal processing low distortion
and low noise are obtained.
MUTE
SE1L
SE1R
SE2L
SE2R
SE3L
SE3R
SE4L
SE4L
GND
V_REF
V_S
GAIN/
AUTO
ZERO
INPUT
MULTIPLEXER
MONO/
BEEP
MIXING
STAGE
LOUDNESS VOLUME
BEEP
SOFT
MUTE
TREBLE
BASS
MONO
FADER
MONO
FADER
MONO
FADER
MONO
FADER
MONO
FADER
MONO
FADER
ZERO
CROSS
SUPPLY
DIGITAL CONTROL I²C-BUS
D00AU1178
OUTLF
OUTRF
OUTLR
OUTRR
SWL
SWR
SCL
SDA
September 2003
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