iPod IWIP3G User Guide - Page 129

Set Control Micbias

Page 129 highlights

6.25 SET CONTROL MICBIAS SET CONTROL MICBIAS controls the linear regulator that drives current through the dedicated mic bias pin. 6.25.1 Syntax Synopsis: SET CONTROL MICBIAS [{voltage} {current}] Description: voltage current If no parameters are given, returns current mic bias settings. Voltage driven through the mic bias pin. Range 0-F (hex). Current driven through the mic bias pin. Range: 0-F (hex). The setting values and their corresponding typical voltage and current ranges are in the table below. Value 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Voltage (V) 1.61 - 1.80 1.65 - 1.86 1.71 - 1.93 1.76 - 1.98 1.84 - 2.06 1.89 - 2.14 1.97 - 2.23 2.04 - 2.32 2.18 - 2.46 2.27 - 2.58 2.39 - 2.72 2.50 - 2.87 2.70 - 3.09 2.85 - 3.29 3.07 - 3.56 3.28 - 3.84 Current (mA) 0.237 - 0.394 0.296 - 0.492 0.354 - 0.589 0.412 - 0.687 0.471 - 0.785 0.530 - 0.883 0.589 - 0.980 0.647 - 1.078 0.706 - 1.176 0.764 - 1.273 0.823 - 1.371 0.882 - 1.469 0.940 - 1.566 0.998 - 1.664 1.057 - 1.762 1.116 - 1.859 129

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129
6.25
SET CONTROL MICBIAS
SET CONTROL MICBIAS
controls the linear regulator that drives current through the
dedicated mic bias pin.
6.25.1
Syntax
Synopsis:
SET CONTROL MICBIAS [{
voltage
} {
current
}]
Description:
If no parameters are given, returns current mic bias settings.
voltage
Voltage driven through the mic bias pin. Range 0-F (hex).
current
Current driven through the mic bias pin. Range: 0-F (hex).
The setting values and their corresponding typical voltage and current
ranges are in the table below.
Value
Voltage (V)
Current (mA)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1.61 - 1.80
1.65 - 1.86
1.71 - 1.93
1.76 - 1.98
1.84 - 2.06
1.89 - 2.14
1.97 - 2.23
2.04 - 2.32
2.18 - 2.46
2.27 - 2.58
2.39 - 2.72
2.50 - 2.87
2.70 - 3.09
2.85 - 3.29
3.07 - 3.56
3.28 - 3.84
0.237 - 0.394
0.296 - 0.492
0.354 - 0.589
0.412 - 0.687
0.471 - 0.785
0.530 - 0.883
0.589 - 0.980
0.647 - 1.078
0.706 - 1.176
0.764 - 1.273
0.823 - 1.371
0.882 - 1.469
0.940 - 1.566
0.998 - 1.664
1.057 - 1.762
1.116 - 1.859