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TDA7462 датащи(PDF) 12 Page - STMicroelectronics

номер детали TDA7462
подробное описание детали  DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT
PDF  25 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7462 датащи(HTML) 12 Page - STMicroelectronics

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dB
Hz
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
100.0
1.0K
10.0K
Subwoofer Application
Figure 14. Subwoofer Application with LPF
80/115Hz and HPF 90/130Hz
dB
Hz
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
100.0
1.0K
10.0K
VoiceBand Application
Figure 15. VoiceBand Application with HPF
180/260Hz and LPF 3k/6kHz
80Hz/115Hz
Figure 16. Switchable configuration for Front/Rear processing
Speaker Attenuator
Due to practical aspects the steps in the speak-
erattenuators are not linear over the full range. At
attenuations more than 24dB the steps increase
from 1.5dB to 10dB (see data byte specification).
Subwoofer
The Subwoofer output is a differential mono out-
put with 6dB gain. The outgoing signal generated
by adding the left and the right channel. The at-
tenuator is exactely the same like the other
speakers.
In some applications it could be helpful to change
the phase of this output by software. For this pur-
pose a bit is available in the subwoofer byte to
change the phase from 0° to 180°.
TDA7462
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