
STMicroelectronics
DESCRIPTION
The device includes a high performance audio processor 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 provided. 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.
FEATURES
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:
■I2C-BUS INTERFACE