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TDA7718B 数据表(PDF) 22 Page - STMicroelectronics

部件名 TDA7718B
功能描述  3 band car audio processor
PDF  40 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7718B 数据表(HTML) 22 Page - STMicroelectronics

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Description of the audioprocessor
TDA7718B
22/40
DocID18305 Rev 3
4.7.2
Center frequency
Figure 16 shows the four possible center frequencies 10 k, 12.5 k, 15 k and 17.5 kHz.
Figure 16. Treble center frequencies @ gain = 14 dB
4.8
Subwoofer filter
The subwoofer lowpass filter has Butterworth characteristics with programmable cut-off
frequency (55 Hz / 85 Hz / 120 Hz / 160 Hz). The output phase can be selected between 0
deg and 180 deg. The input of subwoofer takes signal from bass filter output or output of
input mux.
Figure 17. Subwoofer cut frequencies



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