WM9711LGEFL(2006) Просмотр технического описания (PDF) - Wolfson Microelectronics plc
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WM9711LGEFL Datasheet PDF : 65 Pages
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Production Data
WM9711L
POWER CONSUMPTION
The power consumption of the WM9711L depends on the following factors.
• Supply voltages: Reducing the supply voltages also reduces digital supply currents, and therefore results in significant
power savings especially in the digital sections of the WM9711L.
• Operating mode: Significant power savings can be achieved by always disabling parts of the WM9711L that are not
used (e.g. audio ADC, DAC, AUXDAC, speaker driver, etc.)
Mode Description
26h 14:8
24h 15:0
Other Settings
OFF (lowest possible power)
Clocks stopped
1111111 0111111111111111 58h, SVD = 1
LPS (Low Power Standby)
VREF maintained using 1MOhm string
1111111 0111111111111111
Standby Mode (ready to playback)
VREF maintained using 50kOhm string
1110111 0111111111111111
"Idle" Mode
1100111 0111111111111111
VREF maintained using 50kOhm string
use LPS mode instead, if possible
Phone Call - using headphone / ear speaker 0110011 0111100010101100 0Eh, bit 7 = 1
HPOUTL, HPOUTR and OUT3 active
(mic gain boost)
AC-Link stopped
Phone Call - using loudspeaker
1110011 0111101100110100 0Eh, bit 7 = 1
AC-Link stopped
(mic gain boost)
Record from mono microphone
with MICBIAS
all analogue outputs disabled
Record phone call
both sides mixed to mono
call using headphone / ear speaker
DAC Playback - using loudspeaker
1000110 0110101111111111 0Eh, bit 7 = 1
(mic gain boost)
0000000 0000000010001000 0Eh, bit 7 = 1
(mic gain boost)
1000001 0001111101110111
DAC Playback - using headphone
0000001 0001110011101111
DAC Playback - to Line-out
0000001 0001110011110111
Maximum Power (everything on)
0000000 0000000000000000 0Eh, bit 7 = 1
(mic gain boost)
AVDD
V
I (mA)
3.3
0.0005
2.5
0.0004
1.8
0.0003
3.3
0.005
2.5
0.004
1.8
0.003
3.3
0.56
2.5
0.37
1.8
0.241
3.3
1.1
2.5
0.76
1.8
0.508
3.3
2.36
2.5
1.838
1.8
1.218
3.3
2.385
2.5
1.837
1.8
1.218
3.3
3.27
2.5
2.66
1.8
1.838
3.3
9.461
2.5
7.46
1.8
5.318
3.3
3.45
2.5
2.549
1.8
1.738
3.3
3.62
2.5
2.71
1.8
1.748
3.3
3.62
2.5
2.71
1.8
1.748
3.3
9.593
2.5
7.37
1.8
5.388
DCVDD
V
I (mA)
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
11.21
2.5
7.78
1.8
5.21
3.3
12.22
2.5
8.552
1.8
5.799
3.3
9.884
2.5
6.755
1.8
4.606
3.3
9.8
2.5
6.78
1.8
4.606
3.3
9.8
2.5
6.78
1.8
4.606
3.3
12.26
2.5
8.563
1.8
5.8
DBVDD
V
I (mA)
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
0
2.5
0
1.8
0
3.3
2.6
2.5
2.13
1.8
1.41
3.3
2.62
2.5
2.1
1.8
1.48
3.3
2.6
2.5
2.1
1.8
1.41
3.3
2.6
2.5
2.1
1.8
1.47
3.3
2.6
2.5
2.1
1.8
1.41
3.3
2.62
2.5
2.12
1.8
1.48
Total Power
(mW)
0.00165
0.001
0.00054
0.0165
0.01
0.0054
1.848
0.925
0.4338
3.63
1.9
0.9144
7.788
4.595
2.1924
7.8705
4.5925
2.1924
56.364
31.425
15.2244
80.1933
45.28
22.6746
52.5822
28.51
13.9572
52.866
28.975
14.0832
52.866
28.975
13.9752
80.7609
45.1325
22.8024
Table 1 Supply Current Consumption (Simulation)
Notes:
1. All figures are at TA = +25oC, audio sample rate fs = 48kHz, with zero signal (quiescent).
2. The power dissipated in the headphone and speaker is not included in the above table.
w
PD Rev 4.3 August 2006
11
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