WM8958 datasheet(32/377 Pages) WOLFSON

32 / 377 page

WM8958

Pre-Production

PP, August 2012, Rev 3.4

TYPICAL PERFORMANCE

TYPICAL POWER CONSUMPTION

OPERATING MODE

TEST CONDITIONS

SPKVDD

(Note 3)

LDO1VDD

AVDD2

CPVDD

DBVDD

(Note 4)

TOTAL

Off (Battery Leakage only)

LDO1 disabled, LDO2

disabled

4.2V

1.1

A

4.2V

0.4

A

0.0V

5.5

A

0.0V

A

0.0V

9.5

A

0.01mW

Standby

LDO1 disabled, LDO2

enabled

All supplies present,

No clocks,

Default register settings

4.2V

1.8

A

4.2V

A

1.8V

A

1.8V

A

1.8V

A

0.2mW

Standby

LDO1 enabled, LDO2

enabled

All supplies present,

No clocks,

Default register settings

4.2V

1.8

A

4.2V

A

1.8V

A

1.8V

A

1.8V

A

0.6mW

Music playback to Headphone (32ohm load)

AIF1 to DAC to

HPOUT1 (stereo)

fs=44.1kHz,

Clocking rate=256fs,

24-bit I2S, Slave mode

4.2V

0.0mA

4.2V

2.05mA

1.8V

0.32mA

1.8V

0.48mA

1.8V

1.13mA

12.1mW

AIF1 to DAC to

HPOUT1 (stereo)

LDOs disabled,

See Note 7

fs=44.1kHz,

Clocking rate=128fs,

24-bit I2S, Slave mode,

Class W

3.6V

0.0mA

AVDD1=

2.4V

1.43mA

1.8V

0.21mA

1.8V

0.21mA

DBVDD=

1.8V

0.01mA

DCVDD=

1.2V

0.94mA

5.34mW

Music playback to Class D speaker output (8ohm, 22

H load)

AIF1 to DAC to

SPKOUT (stereo)

fs=44.1kHz,

Clocking rate=256fs,

24-bit I2S, Slave mode,

+7.5dB Class D boost

4.2V

1.65mA

4.2V

2.36mA

1.8V

1.24mA

1.8V

0.01mA

1.8V

1.13mA

21.1mW

AIF1 to DAC to

SPKOUT (Left)

fs=44.1kHz,

Clocking rate=256fs,

24-bit I2S, Slave mode,

+0.0dB Class D boost

4.2V

0.74mA

4.2V

2.34mA

1.8V

0.79mA

1.8V

0.01mA

1.8V

1.13mA

16.4mW

AIF1 to AIF3 Mono Digital Bypass (eg. Bluetooth video call)

AIF1(L) to AIF3(L),

AIF3(L) to AIF1(L)

fs=8kHz,

Clocking rate=256fs,

24-bit I2S, Slave mode

4.2V

0.0mA

4.2V

0.09mA

1.8V

0.07mA

1.8V

0.01mA

1.8V

0.41mA

1.2mW

AIF2 to AIF3 Mono Digital Bypass (eg. Bluetooth voice call)

AIF2(L) to AIF3(L),

AIF3(L) to AIF2(L)

fs=8kHz,

Clocking rate=256fs,

24-bit I2S, Slave mode

4.2V

0.002mA

4.2V

0.089mA

1.8V

0.065mA

1.8V

0.003mA

1.8V

0.311mA

1.1mW

Notes:

1. AVDD1 = 3.0V, generated by LDO1.

2. DCVDD = 1.2V, generated by LDO2.

3. SPKVDD = SPKVDD1 = SPKVDD2.

4. DBVDD = DBVDD1 = DBVDD2 = DBVDD3.

5. ISPKVDD = ISPKVDD1 + ISPKVDD2.

6. IDBVDD = IDBVDD1 + IDBVDD2 + IDBVDD3.

7. Power consumption for music playback with LDOs disabled requires an external supply for AVDD1 and DCVDD

WM8958 Datasheet(PDF) 32 Page - Wolfson Microelectronics plc

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