參數(shù)資料
型號： PCM1870RHFT
英文描述： 16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier
中文描述： 16位低功耗立體聲音頻ADC，具有麥克風(fēng)偏置和麥克風(fēng)放大器
文件頁數(shù)： 15/49頁
文件大?。?/td> 648K
代理商： PCM1870RHFT
www.ti.com
Power-Supply Current
PCM1870
SLAS544–MAY 2007
The current consumption the PCM1870 depends on the power-up/down status of each circuit module. In order
to save power consumption, disabling each module is recommended when it is not used in an appliction or
operation.
Table 5
shows current consumtption in some states.
Table 5. Power Consumption Table
POWER SUPPLY CURRENT [mA]
V
V
(1.8 V)
(3.3 V)
0.000
0.000
PD [mW]
OPERATION MODE
V
(3.3 V)
0.001
V
TOTAL
(V
DD
= 1.8 V)
0.003
TOTAL
(V
DD
= 3.3 V)
0.003
(3.3 V)
0.000
ALL POWER DOWN
Recording (f
S
= 48 kHz)
Line input (AIN2L/AIN2R)
Mic input (AIN1L/AIN1R, 20 dB)
Mic input (AIN1L/AIN1R, 20 dB) with ALC
Mono mic input (AIN1L, 20 dB)
Mono mic input (AIN1L, 20 dB) with ALC
Mono diff mic input (AIN1L/AIN1R, 20 dB)
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC
Recording (f
S
= 22.05 kHz)
Line input (AIN2L/AIN2R)
Mic input (AIN1L/AIN1R, 20 dB)
Mic input (AIN1L/AIN1R, 20 dB) with ALC
Mono mic input (AIN1L, 20 dB)
Mono mic input (AIN1L, 20 dB) with ALC
Mono diff mic input (AIN1L/AIN1R, 20 dB)
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC
Recording (f
S
= 16 kHz)
Line input (AIN2L/AIN2R)
Mic input (AIN1L/AIN1R, 20 dB)
Mic input (AIN1L/AIN1R, 20 dB) with ALC
Mono mic input (AIN1L, 20 dB)
Mono mic input (AIN1L, 20 dB) with ALC
Mono diff mic input (AIN1L/AIN1R, 20 dB)
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC
Recording (f
S
= 8 kHz)
Line input (AIN2L/AIN2R)
Mic input (AIN1L/AIN1R, 20 dB)
Mic input (AIN1L/AIN1R, 20 dB) with ALC
Mono mic input (AIN1L, 20 dB)
Mono mic input (AIN1L, 20 dB) with ALC
Mono diff mic input (AIN1L/AIN1R, 20 dB)
Mono diff mic input (AIN1L/AIN1R, 20 dB) with ALC)
Condition: 256 f
S
, 16 bits, slave mode, zero data input, no load
1.78
1.79
2.73
1.33
2.21
1.33
2.21
3.71
3.71
5.59
2.80
4.60
2.80
4.60
4.58
5.06
5.06
3.56
3.56
3.88
3.88
0.10
0.10
0.10
0.10
0.10
0.10
0.10
18.3
19.9
21.6
14.1
15.7
15.2
16.8
27.7
29.3
35.5
21.3
27.3
22.4
28.3
0.82
0.82
1.26
0.61
1.03
0.61
1.02
1.66
1.66
2.55
1.23
2.10
1.23
2.08
3.71
4.20
4.20
2.74
2.74
3.06
3.06
0.10
0.10
0.10
0.10
0.10
0.10
0.10
13.7
15.3
16.1
10.1
10.9
11.2
11.9
18.1
19.7
22.6
13.4
1.63
14.5
17.3
0.59
0.59
0.91
0.44
0.75
0.44
0.74
1.18
1.18
1.85
0.87
1.52
0.87
1.50
3.51
3.99
3.99
2.55
2.55
2.87
2.87
0.10
0.10
0.10
0.10
0.10
0.10
0.10
12.7
14.2
14.8
9.2
9.8
10.3
10.8
15.8
17.4
19.6
11.6
13.8
12.7
14.8
0.29
0.29
0.46
0.22
0.37
0.22
0.37
0.54
0.54
0.88
0.39
0.70
0.39
0.70
3.23
3.72
3.72
2.29
2.29
2.61
2.61
0.10
0.10
0.10
0.10
0.10
0.10
0.10
11.2
12.8
13.1
8.0
8.2
9.0
9.3
12.8
14.4
15.5
9.2
10.2
10.2
11.3
15
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