G1420 Datasheet, PDF (8/20 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1420
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 _VDD=5V
2 RL=32Ω
1 SE
0.5 Po=75mW
Av=-4V/V
0.2
%
0.1
0 .05
Av=-2V/V
0 .02
0 .01
0.0 05
0.0 02
0.0 01
20
Av=-1V/V
50
10 0 2 00
5 00
1k
2k
Hz
5k
10 k 20k
Figure 23
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 _VDD=5V
2 RL=32Ω
1 SE
0.5
0.2
%
0.1
0 .05
Po=50mW
0 .02
0 .01
0.0 05
0.0 02
0.0 01
20
50
10 0
Po=25mW
Po=75mW
2 00
5 00
1k
2k
5k
Hz
10 k 20k
Figure 24
Total Harmonic Distortion Plus
Noise vs Output Power
10
VDD=3.3V
5
RL=4Ω ,SE
Av=-2
2
1
20kHz
0.5
%
0.2
1kHz
0.1
0 .05
100Hz
0 .02
0 .01
1m
2m
5m 1 0m 20 m
50 m 10 0m 2 00 m
W
Figure 25
500 m 1
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Frequency
VDD=3.3V
RL=4Ω
SE
Po=0.2W
Av=-4V/V
Av=-2V/V
0 .02
0 .01
20
Av=-1V/V
50
10 0 2 00
5 00
1k
2k
Hz
Figure 26
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Frequency
10_{R R}
5 _VDD=3.3V
RL=4Ω
2 _SE
1 Av=-2
Po=50mW
0.5
%
0.2
0.1
Po=100mW
0 .05
0 .02
0 .01
20
Po=150mW
50
10 0 2 00
5 00
1k
2k
Hz
Figure 27
5k
10 k 20k
Ver: 1.5
Aug 04, 2005
Total Harmonic Distortion Plus
Noise vs Output Power
10
5 VDD=3.3V
RL=8Ω ,SE
2 Av=-2
1
0.5
%
0.2
0.1
20kHz
1kHz
0 .05
0 .02
0 .01
1m
100Hz
2m
5m
10 m
20 m
W
Figure 28
50m
10 0m 2 00m
TEL: [phone]
http://www.gmt.com.tw
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