TDA7405_04 Datasheet, PDF (1/57 Pages) STMicroelectronics – EQUALIZER CARRADIO SIGNAL PROCESSOR

TDA7405
EQUALIZER CARRADIO SIGNAL PROCESSOR
1 FEATURES
■ 3 STEREO INPUTS
■ 3 MONO INPUTS
■ DYNAMIC-COMPRESSION-STAGE FOR CD
■ BASS, TREBLE AND LOUDNESS CONTROL
■ EQ-FILTERS FOR SEPARATE FRONT/REAR-
EQUALIZATION
■ VOICE-BAND-FILTER FOR MIXING-CHANNEL
■ DIRECT MUTE AND SOFTMUTE
■ INTERNAL BEEP
■ FOUR INDEPENDENT SPEAKER-OUTPUTS
■ INDEPENDENT SECOND SOURCE-SELECTOR
■ FULL MIXING CAPABILITY
■ PAUSE DETECTOR
1.1 Stereodecoder
■ RDS MUTE
■ NO EXTERNAL ADJUSTMENTS
■ AM/FM NOISEBLANKER WITH SEVERAL
TRIGGER CONTROLS
■ PROGRAMMABLE MULTIPATH DETECTOR
■ QUALITY DETECTOR OUTPUT
Figure 2. BLOCK DIAGRAM
Figure 1. Package
TQFP44
Table 1. Order Codes
Part Number
TDA7405
Package
TQFP44
1.2 Digital control:
■ I²C-BUS INTERFACE
2 DESCRIPTION
The device includes a high performance audioprocessor
and a stereodecoder-noiseblanker combination with the
whole low frequency signal processing necessary for
state-of-the-art as well as future carradios. The digital
control allows a programming in a wide range of all the
filter characteristics. Also the stereodecoder part offers
several possibilities of programming especially for the
adaptation to different IF-devices.
May 2004
REV. 2
1/57