Power consumption, Cs42l51 power consumption – Cirrus Logic CS42L51 User Manual
Page 25
DS679F1
25
CS42L51
POWER CONSUMPTION
See
25. Unless otherwise noted, test conditions are as follows: All zeros input, slave mode, sample rate =
48 kHz; No load. Digital (VD) and logic (VL) supply current will vary depending on speed mode and mas-
ter/slave operation.
26. RESET pin 25 held LO, all clocks and data lines are held LO.
27. RESET pin 25 held HI, all clocks and data lines are held HI.
28. VL current will slightly increase in master mode.
Power Ctl. Registers
Typical Current (mA)
Operation
02h
03h
PDN_DAC
B
PDN_DAC
A
PDN_PGAB
PDN_PGAA
PDN_ADC
B
PDN_ADC
A
PDN
PDN_MICB
PDN_MICA
PDN_MICBIAS
V
i
VA_HP
i
VA
i
VD
i
VL
Total
Power
(mW
rms
)
1
Off
x x x x x x x x x x
1.8 0
0
0
0
0
2.5 0
0
0
0
0
2
Standby
x x x x x x 1 x x x
1.8 0
0.01
0.02
0
0.05
2.5 0
0.01
0.03
0
0.10
3
Mono Record
ADC 1 1 1 1 1 0 0 1 1 1 1.8 0
1.85
2.03
0.03
7.05
2.5 0
2.07
3.05
0.05
12.94
PGA to ADC 1 1 1 0 1 0 0 1 1 1 1.8 0
2.35
2.03
0.03
7.95
2.5 0
2.58
3.08
0.05
14.29
MIC to PGA to ADC
(with Bias)
1 1 1 0 1 0 0 1 0 0 1.8 0
3.67
2.05
0.03
10.36
2.5 0
3.95
3.09
0.05
17.71
MIC to PGA to ADC
(no Bias)
1 1 1 0 1 0 0 1 0 1 1.8 0
3.27
2.03
0.03
9.61
2.5 0
3.52
3.08
0.05
16.62
4
Stereo Record
ADC 1 1 1 1 0 0 0 1 1 1 1.8 0
2.69
2.12
0.03
8.72
2.5 0
2.93
3.18
0.04
15.40
PGA to ADC 1 1 0 0 0 0 0 1 1 1 1.8 0
3.65
2.12
0.03
10.45
2.5 0
3.91
3.17
0.04
17.84
MIC to PGA to ADC
(no Bias)
1 1 0 0 0 0 0 0 0 1 1.8 0
5.48
2.11
0.03
13.73
2.5 0
5.76
3.17
0.04
22.45
5
Mono Playback
1 0 1 1 1 1 0 1 1 1 1.8 1.66
1.40
2.35
0.01
9.74
2.5 2.03
1.71
3.48
0.02
18.08
6 Stereo
Playback
0 0 1 1 1 1 0 1 1 1 1.8 2.77
2.05
2.35
0.01
12.93
2.5 3.21
2.50
3.49
0.02
23.02
7
Mono Record & Playback
PGA in (no MIC) to Mono Out
1 0 1 0 1 0 0 1 1 1 1.8 1.66
3.63
2.73
0.03
14.49
2.5 2.03
4.16
4.08
0.05
25.79
8
Phone Monitor
MIC (w/bias) in to Mono Out
1 0 1 0 1 0 0 1 0 0 1.8 1.66
4.95
2.75
0.03
16.90
2.5 2.03
5.52
4.08
0.05
29.20
9
Stereo Record & Playback
PGA in (no MIC) to Stereo Out
0 0 0 0 0 0 0 1 1 1 1.8 2.77
5.59
2.82
0.03
20.18
2.5 3.21
6.28
4.19
0.04
34.30