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STA015B датащи(PDF) 38 Page - STMicroelectronics

номер детали STA015B
подробное описание детали  MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY
PDF  55 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA015B датащи(HTML) 38 Page - STMicroelectronics

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BASS_ENHANCE
Address: 0x7C (1240
Software Reset: 0x00
Hardware Reset: 0x00
Signed number (2 complement)
This register is used to select the enhancement or attenuation STA015 has to perform on Bass Frequency
range at the digital signal. A decrement (increment) of a decimal unit corresponds to a step of attenuation
(enhancement) of 1.5dB.
The allowed Attenuation/Enhancement range is [-18dB, +18dB].
TONE_ATTEN
Address: 0x7D (125)
Type: RW
Software Reset: 0x00
Hardware Reset: 0x00
In the digital output audio, the full signal is achieved with 0 dB of attenuation. For this reason, before ap-
plying Bass & Treble Control, the user has to set the TONE_ATTEN register to the maximum value of en-
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
BE7
BE6
BE5
BE4
BE3
BE2
BE1
BE0
MSB
LSB
ENHANCE/ATTENUATION
b7
b6
b5
b4
b3
b2
b1
b0
1.5dB step
0
0001
100
+18
0
0001
011
+16.5
0
0001
010
+15
0
0001
001
+13.5
:
:
0
0000
001
+1
0
0000
000
0
1
1111
111
-1
:
:
1
1110
111
+13.5
1
1110
110
-15
1
1110
100
-16.5
1
1110
100
-18
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
TA7
TA6
TA5
TA4
TA3
TA2
TA1
TA0



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