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STV8247 bảng dữ liệu(PDF) 34 Page - STMicroelectronics

tên linh kiện STV8247
Giải thích chi tiết về linh kiện  Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders
PDF  156 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV8247 bảng dữ liệu(HTML) 34 Page - STMicroelectronics

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Dedicated Digital Signal Processor (DSP)
STV82x7
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4.6.4
Bass Management Configuration 3
The third configuration, shown in Figure 17, assumes that all speakers except the center are full
range, then all bass information will be directed to and reproduced by the front left and front right
and both surround speakers. In order to provide more flexibility to this configuration, a switch will
offer an option which will produce a subwoofer channel by the LFE channel.
When the Subwoofer Switch is OFF, the input channels will be attenuated by 8 dB. Configuration 3
is required in certain high-end products.
Figure 17: Bass Management Configuration 3 (all switches indicate their reset state)
C
L
R
Ls
Rs
L
C
R
Ls
Rs
SubW
LFE
+
+
+
+
-4dB
-8dB
-4dB
-8dB
-4dB
-8dB
-4dB
-8dB
+
+
+10dB
+8dB
+4dB
+8dB
+4dB
+8dB
+4dB
+8dB
+4dB
+8dB
+4dB
Subwoofer
ON Switch
Subwoofer
ON Switch
Level Adjustment
OFF Switch
-4dB
-4dB
-8dB
-8dB
-4.5 dB



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