WM8958 Datasheet, PDF (32/377 Pages) Wolfson Microelectronics plc – Multi-Channel Audio Hub CODEC for Smartphones

WM8958
Pre-Production
TYPICAL PERFORMANCE
TYPICAL POWER CONSUMPTION
OPERATING MODE
TEST CONDITIONS
Off (Battery Leakage only)
LDO1 disabled, LDO2
disabled
Standby
LDO1 disabled, LDO2
enabled
All supplies present,
No clocks,
Default register settings
Standby
LDO1 enabled, LDO2
enabled
All supplies present,
No clocks,
Default register settings
Music playback to Headphone (32ohm load)
AIF1 to DAC to
HPOUT1 (stereo)
fs=44.1kHz,
Clocking rate=256fs,
24-bit I2S, Slave mode
AIF1 to DAC to
HPOUT1 (stereo)
LDOs disabled,
See Note 7
fs=44.1kHz,
Clocking rate=128fs,
24-bit I2S, Slave mode,
Class W
SPKVDD LDO1VDD AVDD2
(Note 3)
4.2V
1.1A
4.2V
0.4A
0.0V
5.5A
4.2V
1.8A
4.2V
1A
1.8V
60A
4.2V
1.8A
4.2V
89A
1.8V
65A
4.2V
0.0mA
3.6V
0.0mA
4.2V
2.05mA
AVDD1=
2.4V
1.43mA
1.8V
0.32mA
1.8V
0.21mA
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,
4.2V
1.65mA
+7.5dB Class D boost
AIF1 to DAC to
SPKOUT (Left)
fs=44.1kHz,
Clocking rate=256fs,
24-bit I2S, Slave mode,
4.2V
0.74mA
+0.0dB Class D boost
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
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
2.36mA
4.2V
2.34mA
4.2V
0.09mA
4.2V
0.089mA
1.8V
1.24mA
1.8V
0.79mA
1.8V
0.07mA
1.8V
0.065mA
CPVDD
0.0V
5A
1.8V
5A
1.8V
5A
1.8V
0.48mA
1.8V
0.21mA
1.8V
0.01mA
1.8V
0.01mA
1.8V
0.01mA
1.8V
0.003mA
DBVDD
(Note 4)
0.0V
9.5A
1.8V
62A
1.8V
72A
1.8V
1.13mA
DBVDD=
1.8V
0.01mA
DCVDD=
1.2V
0.94mA
1.8V
1.13mA
1.8V
1.13mA
1.8V
0.41mA
1.8V
0.311mA
TOTAL
0.01mW
0.2mW
0.6mW
12.1mW
5.34mW
21.1mW
16.4mW
1.2mW
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. I_SPKVDD = I_SPKVDD1 + I_SPKVDD2.
6. I_DBVDD = I_DBVDD1 + I_DBVDD2 + I_DBVDD3.
7. Power consumption for music playback with LDOs disabled requires an external supply for AVDD1 and DCVDD
w
PP, August 2012, Rev 3.4
32