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TDA7415CB Datasheet(PDF) 18 Page - STMicroelectronics

Part # TDA7415CB
Description  Car radio multimedia signal processor
PDF  50 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7415CB Datasheet(HTML) 18 Page - STMicroelectronics

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Description of the audio processor
TDA7415CB
18/50
5
Description of the audio processor
As can be seen from the block diagram in Figure 1, the Audio processor is composed of
three building blocks. - The INPUT-Section, the MAIN-SIGNAL-PROCESSING-path and the
OUTPUT-Section.
This chapter will give more insight into the different blocks and describe their function.
5.1
Input section
The Input-Section of the TDA7415CB incorporates three independent stereo signal paths,
where each can connect to a variety of inputs and the AC3 input from the Output-section for
monitoring purposes. For simplicity only the left inputs are shown.
After selection by the Main-, Sub-, and/or Auxiliary-source selector, the signal passes a
gain-adjust amplifier, a soft-mute stage and finally a buffer before it is output at the device
output-pins. The soft-mute circuit will be described later.
Figure 3.
Signal-flow input-section (the following soft-mute and output buffer are
not shown)



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