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POWER CONSUMPTION
Typical current consumption for various scenarios is shown below.
MODE
Power OFF (No Clocks)
Sleep (VMID maintained, No Clocks)
Mono Record (MIC input, +20dB gain, 8kHz,
quiescent) SLAVE
Mono Record (MIC input, +20dB gain, 44.1kHz,
PLL, quiescent) MASTER
Mono 16Ω Headphone Playback (0.1mW, 1kHz
sine wave, ac coupled) SLAVE
Mono 8Ω BTL speaker Playback (44.1kHz,
200mW, 1kHz sine wave) SLAVE
Mono 8Ω BTL speaker Playback (44.1kHz, PLL,
quiescent) MASTER
Table 1 Power Consumption
Note: Power consumption figures include any power dissipated in the load (e.g. in the headphone or speaker)
Rev 4.4
AVDD
SPKVDD
DCVDD
(3V3)
(3V3)
(1.8V)
MA
MA
MA
0.038
0
0
0.190
0
0
4.1
0
0.3
5.3
0
1.9
2.8
1.5
1.6
2.8
62
1.6
3.9
1.5
1.8
WM8940
DBVDD
TOTAL
(1.8V)
POWER
UA
(MW)
0.2
0.126
0.2
0.627
11
14.3
115
21.0
3.7
17.1
3.8
216.8
81
21.1
13
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