wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 13

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

Note:
1. The load inductance will affect the efficiency: the Class D output is generally less efficient when driving a less inductive load.
w
WM8961
Stereo Playback DAC to Headphones – Standard Headphone Playback with 16Ω load.
Test conditions
48kHz sample rate
Variant test conditions
Quiescent
P
P
Stereo Playback DAC to Headphones – SNR Optimised Headphone Playback with 16Ω load.
Test conditions
48kHz sample rate
Variant test conditions
Quiescent
P
P
Stereo Playback to Speaker - with 8.2Ω + 22uH load (see note 1).
Test conditions
48kHz sample rate
CLASSD_ACGAIN=111 (+12dB)
Variant test conditions
Quiescent
P
P
o
o
o
o
o
o
= 2mW/channel
= 16mW/channel
= 2mW/channel
= 16mW/channel
= 200mW/channel
= 1W/channel
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
V
V
V
AVDD
AVDD
AVDD
2.418
2.438
2.458
1.79
1.79
1.82
2.12
2.14
mA
mA
mA
2.1
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
V
V
V
DVDD
DVDD
DVDD
1.385
1.525
1.750
1.56
1.57
1.57
1.72
1.73
1.73
mA
mA
mA
5.0
5.0
5.0
5.0
5.0
5.0
SPKVDD1+2
5.0
5.0
5.0
V
V
V
SPKVDD
SPKVDD
0.002
0.002
0.002
0.002
0.002
0.002
1.16
mA
mA
mA
102
480
1.86
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
V
V
V
PP, August 2009, Rev 3.1
CPVDD
CPVDD
CPVDD
1.775
22.46
0.004
0.004
0.004
59.8
1.46
22.4
59.4
mA
mA
mA
Pre-Production
12.65mW
517mW
TOTAL
TOTAL
TOTAL
47.25
2.4W
9.39
46.5
9.52
mW
mW
114
114
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