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WM8281ECS/R Scheda tecnica(PDF) 29 Page - Cirrus Logic

Il numero della parte WM8281ECS/R
Spiegazioni elettronici  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
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Produttore elettronici  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Scheda tecnica(HTML) 29 Page - Cirrus Logic

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WM8281
Rev 4.0
29
TYPICAL PERFORMANCE
TYPICAL POWER CONSUMPTION
Typical power consumption data is provided below for a number of different operating conditions.
Test Conditions:
DCVDD = 1.2V,
DBVDD1 = DBVDD2 = DBVDD3 = LDOVDD = CPVDD = AVDD = 1.8V,
SPKVDDL = SPKVDDR = 4.2V,
MICVDD = 3.0V (powered from LDO2), TA = +25ºC.
OPERATING MODE
TEST CONDITIONS
SUPPLY
CURRENT
(1.2V)
SUPPLY
CURRENT
(1.8V)
SUPPLY
CURRENT
(4.2V)
TOTAL
POWER
Music Playback to Headphone
AIF1 to DAC to HPOUT1 (stereo)
fs=48kHz, 24-bit I2S, Slave mode
Load = 32
, eDRE software enabled.
Quiescent
2.3mA
1.1mA
0.0mA
4.7mW
1kHz sine wave, PO=10mW
2.4mA
35.6mA
0.0mA
66.9mW
Music Playback to Line Output
AIF1 to DAC to HPOUT2 (stereo)
fs=48kHz, 24-bit I2S, Slave mode
Load = 10k
, 50pF, eDRE software
enabled.
Quiescent
2.3mA
1mA
0.0mA
4.6mW
Music Playback to Earpiece
AIF1 to DAC to HPOUT3 (mono)
fs=48kHz, 24-bit I2S, Slave mode
Load = 32
, BTL, eDRE software
enabled.
Quiescent
1.53mA
1.2mA
0.0mA
4.0mW
1kHz sine wave, PO=30mW
1.3mA
60.6mA
0.0mA
110.6mW
Music Playback to Speaker
AIF1 to DAC to SPKOUT (stereo)
fs=48kHz, 24-bit I2S, Slave mode
Load = 8
, 22µH, BTL.
Quiescent
1.54mA
2.12mA
3.76mA
21.5mW
1kHz sine wave, PO=700mW
1.62mA
2.15mA
372mA
1568mW
Full Duplex Voice Call
Analogue Mic to ADC to AIF1 (out)
AIF (in) to DAC to HPOUT3 (mono)
fs=8kHz, 16-bit I2S, Slave mode.
MEMS microphone powered from
regulated MICBIAS (2.2V) output.
Earpiece load = 32
, BTL.
Quiescent
2.6mA
4.2mA
0.0mA
10.7mW
Stereo Line Record
Analogue Line to ADC to AIF1
fs=48kHz, 24-bit I2S, Slave mode
1kHz sine wave, -1dBFS out
1.2mA
1.5mA
0.0mA
4.1mW
Sleep Mode
Accessory detect enabled
(JD1_ENA=1)
0mA
0.022mA
0.0mA
0.039mW



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