WM8944BECSSLASHR datasheet(15/165 Pages) CIRRUS

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WM8944B

Rev 4.3

TYPICAL POWER CONSUMPTION

DCVDD

DBVDD

LDOVDD

SPKVDD

Total

(mA)

Power

(mW)

(mA)

Condition

1.8

3.3

Powerdown

Supplies are all off except SPKVDD

5.776E-05

0.000

Powerdown (register settings are default value, no

MCLK, THERR_ACT=0, CIFMODE/GPIO2

configured as an input)

0.0016

0.007

0.00717

0.00133

0.017

0.054

Powerdown (register settings are default value,

MCLK=12.288MHz, THERR_ACT=0,

CIFMODE/GPIO2 configured as an input)

0.113

0.012

0.00679

0.00138

0.133

0.270

Powerdown (register settings are default value,

MCLK=24.576MHz, THERR_ACT=0,

CIFMODE/GPIO2 configured as an input)

0.245

0.017

0.00717

0.00133

0.271

0.525

Playback

Playback to Lineout (SE_CONFIG=DSP playback,

no data)

2.55

0.127

1.5

0.00146

4.18

9.964

Playback to Speaker 8ohm BTL (SE_CONFIG=DSP

playback, no data)

2.55

0.127

1.64

5.48

9.80

28.505

Playback (Low VMID)

Playback to Speaker 8ohm BTL with Low VMID

(SE_CONFIG=DSP playback, no data)

2.55

0.127

1.99

5.32

9.99

29.132

Record

IN1 to Record (SE_CONFIG=DSP record, no data)

2.85

0.127

3.87

0.00134

8.7

18.325

Record and Playback

IN1 to Record + Playback to Lineout + Speaker

8ohm BTL + MICBIAS (SE_CONFIG=DSP playback

/ record, no data)

4.01 /

5.03

0.126

6.22

5.48

15.8

46.2 /

48.1

IN1 to Record + Playback to Lineout + Speaker

8ohm BTL + MICBIAS + FLL (SE_CONFIG=DSP

playback / record, no data)

5.32 /

6.29

0.265

6.22

5.48

17.3

49.1 /

50.8

IN1 to Record + Playback to Lineout + Speaker

8ohm BTL + MICBIAS + FLL + Video Buffer

(SE_CONFIG=DSP playback / record, no data)

5.32 /

6.29

0.264

7.21

5.48

18.3

52.3 /

54.1

Record and Playback (Low VMID)

IN1 to Record + Playback to Lineout + Speaker

8ohm BTL with Low VMID + MICBIAS + FLL + Video

Buffer (SE_CONFIG=DSP playback / record, no

data)

5.32 /

6.27

0.264

7.56

5.32

18.5

53.0 /

54.7

IN1 to Record + Playback to Lineout + Speaker

8ohm BTL with Low VMID + MICBIAS + FLL + Video

Buffer + Bandgap (SE_CONFIG=DSP playback /

record, no data)

5.30 /

6.27

0.265

7.5

5.31

18.4

52.7 /

54.4

WM8944BECS/R Datasheet(PDF) 15 Page - Cirrus Logic

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