參數(shù)資料
型號(hào): UDA1380
英文描述: Stereo audio coder-decoder for MD, CD and MP3
中文描述: 立體聲音頻編碼器,可用于MD,CD和MP3解碼器
文件頁數(shù): 38/68頁
文件大小: 278K
代理商: UDA1380
2002 Sep 16
38
Philips Semiconductors
Product specification
Stereo audio coder-decoder
for MD, CD and MP3
UDA1380
11.7
Mixer volume control
Table 35
Register address 11H
Table 36
Description of the register bits
Table 37
Digital mixer volume control
BIT
15
14
13
12
11
10
9
8
Symbol
Default
VC2_7
1
VC2_6
1
VC2_5
1
VC2_4
1
VC2_3
1
VC2_2
1
VC2_1
1
VC2_0
1
BIT
7
6
5
4
3
2
1
0
Symbol
Default
VC1_7
0
VC1_6
0
VC1_5
0
VC1_4
0
VC1_3
0
VC1_2
0
VC1_1
0
VC1_0
0
BIT
SYMBOL
DESCRIPTION
15 to 8
VC2_[7:0]
Digital mixer volume control.
An 8-bit value to program the channel 2 volume
attenuation. The range is 0 to
72 dB and
dB in steps of 0.25 dB. Default
value for channel 2 is 00000000, see Table 37.
Digital mixer volume control.
An 8-bit value to program the channel 1 volume
attenuation. The range is 0 to
72 dB and
dB in steps of 0.25 dB. Default
value for channel 1 is 11111111, see Table 37.
7 to 0
VC1_[7:0]
VC2_7
VC1_7
VC2_6
VC1_6
VC2_5
VC1_5
VC2_4
VC1_4
VC2_3
VC1_3
VC2_2
VC1_2
VC2_1
VC1_1
VC2_0
VC1_0
VOLUME
(dB)
0
0
0
0
0
:
1
1
1
1
1
1
1
:
1
1
1
1
0
0
0
0
0
:
0
0
0
0
0
0
1
:
1
1
1
1
0
0
0
0
0
:
1
1
1
1
1
1
0
:
0
0
0
1
0
0
0
0
0
:
1
1
1
1
1
1
0
:
1
1
1
0
0
0
0
0
0
:
0
0
0
0
1
1
0
:
0
1
1
0
0
0
0
0
1
:
1
1
1
1
0
1
0
:
1
0
1
0
0
0
1
1
0
:
0
0
1
1
0
0
0
:
0
0
0
0
0
1
0
1
0
:
0
1
0
1
0
0
0
:
0
0
0
0
0
0.25
0.50
0.75
1
:
45
45.25
45.50
45.75
46
48
50
:
60
63
66
72
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