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TDA7720BTR Datasheet(PDF) 19 Page - STMicroelectronics

Part # TDA7720BTR
Description  3 band car audio processor
PDF  42 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7720BTR Datasheet(HTML) 19 Page - STMicroelectronics

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DocID024331 Rev 2
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TDA7720B
Description of audioprocessor
4.6.4
DC mode
In this mode the DC-gain is increased by 4.4 dB. In addition the programmed center
frequency and quality factor is decreased by 25 % which can be used to reach alternative
center frequencies or quality factors.
Figure 10. Bass normal and DC mode @ gain = 14 dB, fc = 80 Hz
Note:
The center frequency, Q and DC-mode can be set fully independently.
4.7
Middle
There are three parameters programmable in the middle stage.
4.7.1
Middle attenuation
Figure 11 shows the attenuation as a function of frequency at a center frequency of 1 kHz.
Figure 11. Middle control @ fc = 1 kHz, Q = 1



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