TDA7402_07 STMICROELECTRONICS [STMicroelectronics], TDA7402_07 Datasheet - Page 30

• Manufacturer Part Number: TDA7402_07
• Description: Car radio signal processor
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Audioprocessor part
4.14
30/71
Figure 21. Application 2 using internal highpass and external stereo low pass filter
Figure 22. Application 3 using pure external filtering (e.g. DSP)
Speaker attenuator and mixing
A mixing-stage is placed after each speaker attenuator and can be set independly to mixing
mode. Having a full volume for the mix signal the stage offers a wide flexibility to adapt the
mixing levels.
SECOND SOURCE
SECOND SOURCE
RIGHT CHANNEL
SECOND SOURCE
SECOND SOURCE
LEFT CHANNEL
LEFT CHANNEL
MAIN SOURCE
MAIN SOURCE
RIGHT CHANNEL
LEFT CHANNEL
LEFT CHANNEL
MAIN SOURCE
MAIN SOURCE
PROGRAMMING
BASS-FILTER
12/1010xxxx
BASS-FILTER
10/xxxx11xx
PROGRAMMING
5/1xxxxxxx
7/xxxxx0xx
12/1010xxxx
10/xxxx11xx
5/0xxxxxxx
7/xxxxx1xx
25K
25K
25K
25K
25K
25K
25K
25K
SEC.S MONO
VOICE BAND
SEC.S MONO
VOICE BAND
BANDPASS
BANDPASS
MS MONO
MS MONO
220nF
ACINF
ACINF
ACOUT
ACOUT
220nF
50K
50K
OFF/ON FC
OFF/ON FC
EXTERNAL
FILTERING
EXTERNAL
LOWPASS
LOWPASS
LOWPASS
220nF
220nF
ACINR
ACINR
50K
50K
50K
50K
SWIN
SWIN
220nF
SPEAKER FRONT
SPEAKER REAR
SPEAKER SUBWOOFER
SPEAKER FRONT
SPEAKER REAR
SPEAKER SUBWOOFER
D00AU1157
D00AU1163
TDA7402