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參數資料
| 型號： | TLV320AIC3107YZFR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 2 CHANNEL, AUDIO AMPLIFIER, PBGA42 |
| 封裝： | 3.50 X 3 MM, 0.50 MM PITCH, WSCP-42 |
| 文件頁數： | 61/94頁 |
| 文件大小： | 1183K |
| 代理商： | TLV320AIC3107YZFR |
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Output Stage Volume Controls
SLOS545B – NOVEMBER 2008 – REVISED JANUARY 2009........................................................................................................................................... www.ti.com
Page 0 / Register 44:
Right DAC Digital Volume Control Register
BIT
READ/
RESET
DESCRIPTION
WRITE
VALUE
D7
R/W
1
Right DAC Digital Mute
0: The right DAC channel is not muted
1: The right DAC channel is muted
D6–D0
R/W
0000000
Right DAC Digital Volume Control Setting
0000000: Gain = 0.0 dB
0000001: Gain = –0.5 dB
0000010: Gain = –1.0 dB
…
1111101: Gain = –62.5 dB
1111110: Gain = –63.0 dB
1111111: Gain = –63.5 dB
A basic analog volume control with range from 0 dB to -78 dB and mute is replicated multiple times in the output
stage network, connected to each of the analog signals that route to the output stage. In addition, to enable
completely independent mixing operations to be performed for each output driver, each analog signal coming into
the output stage may have up to seven separate volume controls. These volume controls all have approximately
0.5 dB step programmability over most of the gain range, with steps increasing slightly at the lowest attenuations.
Table 5 lists the detailed gain versus programmed setting for this basic volume control.
Table 5. Output Stage Volume Control Settings and Gains
Gain Setting
Analog Gain
Gain Setting
Analog Gain
Gain Setting
Analog Gain
Gain Setting
Analog Gain
(dB)
0 0.0
30
-15.0
60
-30.1
90
-45.2
1
-0.5
31
-15.5
61
-30.6
91
-45.8
2
-1.0
32
-16.0
62
-31.1
92
-46.2
3
-1.5
33
-16.5
63
-31.6
93
-46.7
4
-2.0
34
-17.0
64
-32.1
94
-47.4
5
-2.5
35
-17.5
65
-32.6
95
-47.9
6
-3.0
36
-18.0
66
-33.1
96
-48.2
7
-3.5
37
-18.6
67
-33.6
97
-48.7
8
-4.0
38
-19.1
68
-34.1
98
-49.3
9
-4.5
39
-19.6
69
-34.6
99
-50.0
10
-5.0
40
-20.1
70
-35.1
100
-50.3
11
-5.5
41
-20.6
71
-35.7
101
-51.0
12
-6.0
42
-21.1
72
-36.1
102
-51.4
13
-6.5
43
-21.6
73
-36.7
103
-51.8
14
-7.0
44
-22.1
74
-37.1
104
-52.2
15
-7.5
45
-22.6
75
-37.7
105
-52.7
16
-8.0
46
-23.1
76
-38.2
106
-53.7
17
-8.5
47
-23.6
77
-38.7
107
-54.2
18
-9.0
48
-24.1
78
-39.2
108
-55.3
19
-9.5
49
-24.6
79
-39.7
109
-56.7
20
-10.0
50
-25.1
80
-40.2
110
-58.3
21
-10.5
51
-25.6
81
-40.7
111
-60.2
22
-11.0
52
-26.1
82
-41.2
112
-62.7
23
-11.5
53
-26.6
83
-41.7
113
-64.3
24
-12.0
54
-27.1
84
-42.2
114
-66.2
25
-12.5
55
-27.6
85
-42.7
115
-68.7
26
-13.0
56
-28.1
86
-43.2
116
-72.2
64
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TLV320AIC3107
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