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STA015 数据表(PDF) 37 Page - STMicroelectronics

部件名 STA015
功能描述  MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY
PDF  56 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STA015 数据表(HTML) 37 Page - STMicroelectronics

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STA015
Bass_Freq <= Treble_Freq
Bass_Freq > 0
(suggested range: 20 Hz < Bass_Freq < 750 Hz)
Example:
Bass = 200Hz
Treble = 3kHz
TFS
BFS
TREBLE_ENHANCE
Address: 0x7B (123)
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 Treble Frequen-
cy 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].
15
14
13
12
11
10
9876543
210
00001
01110111
000
15
14
13
12
11
10
9876543
210
00000
00011001
000
MSB
LSB
b7
b6
b5
b4
b3
b2
b1
b0
TE7
TE6
TE5
TE4
TE3
TE2
TE1
TE0
MSB
LSB
ENHANCE/ATTENUATION
b7
b6
b5
b4
b3
b2
b1
b0
1.5dB step
0
0
0
011
00
+18
0
0
0
010
11
+16.5
0
0
0
010
10
+15
0
0
0
010
01
+13.5
:
:
0
0
0
000
01
+1
0
0
0
000
00
0
1
1
1
111
11
-1
:
:
1
1
1
101
11
+13.5
1
1
1
101
10
-15
1
1
1
101
00
-16.5
1
1
1
101
00
-18



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