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參數(shù)資料
| 型號： | TC9488N |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | 0.300 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-24 |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 313K |
| 代理商： | TC9488N |
TC9455,88F/N
2002-02-05
7
4.2
Setting of microphone and echo volumes
Table 2 lists the microphone setting values and attenuation; Table 3 lists the echo volume setting
values and attenuation. The DC level settings are typical values.
Table 2
Microphone volume (VOL1, VOL2) attenuation
Serial Data Setting
DC Level Setting (V)
M3
M2
M1
M0
Attenuation (dB)
5.0
0
4.4
0
1
2
4.2
0
1
0
4
3.9
0
1
6
3.7
0
1
0
8
3.5
0
1
0
1
10
3.2
0
1
0
12
3.0
0
1
14
2.7
1
0
16
2.5
1
0
1
18
2.3
1
0
1
0
20
2.0
1
0
1
22
1.8
1
0
24
1.5
1
0
1
26
1.3
1
0
28
1.1
1
∞
0.0
Table 3
Echo volume (VOL3) attenuation
Serial Data Setting
DC Level Setting (V)
M3
M2
M1
M0
Attenuation (dB)
5.0
0
4.4
0
1
4.2
0
1
0
2
3.9
0
1
3
3.7
0
1
0
4
3.5
0
1
0
1
5
3.2
0
1
0
6
3.0
0
1
7
2.7
1
0
8
2.5
1
0
1
9
2.3
1
0
1
0
10
2.0
1
0
1
11
1.8
1
0
12
1.5
1
0
1
13
1.3
1
0
14
1.1
1
∞
0.0
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