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WM9081 Datasheet(PDF) 11 Page - Cirrus Logic

Part # WM9081
Description  Mono DAC with 2.6W Class AB/D Speaker Driver, Dynamic Range Controller and ReTune??Mobile Parametric Equalizer
PDF  103 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM9081 Datasheet(HTML) 11 Page - Cirrus Logic

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WM9081
Rev 4.0
11
TYPICAL PERFORMANCE DATA
Typical speaker driver THD+N performance is shown below for both 8
Ω and 4Ω loads in Class D mode. Curves are shown for four
typical SPKVDD supply voltage and gain combinations.
SPEAKER CLASS D INTO 4Ω + 10
H
Color
Sweep
Trace
Line Style
Thick
Data
Axis
Comment
1
1
Blue
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 5.0V, AVDD = 3.3V, DCGAIN = ACGAIN = 3.6dB
2
1
Green
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 4.2V, AVDD = 3.3V, DCGAIN = ACGAIN = 2.1dB
3
1
Magenta
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 3.7V, AVDD = 3.0V, DCGAIN = ACGAIN = 2.1dB
4
1
Red
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 3.3V, AVDD = 3.3V, DCGAIN = ACGAIN = 0dB
Device: WM9081 MMC=WPF
Input Signal: 1KHz; 0dBFS; 24-bit; 256fs (fs=48kHz)
Output Path: SPK Class D
Supplies: DBVDD=DCVDD=3.3V
BW Filter: 22Hz to 20kHz AES17
Additional Filtering: none
Load = 4R1 + 10uH
0.001
10
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
%
0
2.5
100m
200m
300m
400m
500m
600m
700m
800m
.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
W
SPEAKER CLASS D INTO 8Ω + 10
H
Color
Sweep
Trace
Line Style
Thick
Data
Axis
Comment
1
1
Blue
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 5.0V, AVDD = 3.3V, DCGAIN = ACGAIN = 3.6dB
2
1
Green
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 4.2V, AVDD = 3.3V, DCGAIN = ACGAIN = 2.1dB
3
1
Magenta
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 3.7V, AVDD = 3.0V, DCGAIN = ACGAIN = 2.1dB
4
1
Red
Solid
2
Anlr.THD+N Ratio
Left
SPKVDD = 3.3V, AVDD = 3.3V, DCGAIN = ACGAIN = 0dB
Device: WM9081 MMC=WPF
Input Signal: 1KHz; 0dBFS; 24-bit; 256fs (fs=48kHz)
Output Path: SPK Class D
Supplies: DBVDD=DCVDD=3.3V
BW Filter: 22Hz to 20kHz AES17
Additional Filtering: none
Load = 8R2 + 10uH
0.001
10
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
%
0
2.5
100m
200m
300m
400m
500m
600m
700m
800m
.9
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
W



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