G1421 Datasheet, PDF (6/24 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier with No Headphone Coupling Capacitor Function

Global Mixed-mode Technology Inc.
G1421
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 _VDD=3.3V
RL=4Ω
2 _BTL
1 _Po=0.65W
Av=-4V/V
Av=-2V/V
0.5
%
0.2
0.1
Av=-1V/V
0 .05
0 .02
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 11
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
VDD=3.3V
5
RL=4Ω
2 ^BTL
Av=-2V/V
1
Po=0.7W
0.5
%
0.2
Po=0.1W
0.1
Po=0.35W
0 .05
0 .02
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 12
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Power
10
5
VDD=3.3V
RL=8Ω
2
20kHz
BTL
1
0.5
%
0.2
1kHz
0.1
0 .05
20Hz
0 .02
0 .01
1m
2m
5m 1 0m 20 m
50 m 10 0m 2 00 m
W
500 m 1
Figure 13
10
5
2
1
0.5
%
0.2
0.1
0 .05
0 .02
0 .01
20
Total Harmonic Distortion Plus
Noise vs Output Frequency
VDD=3.3V
RL=8Ω
BTL
Po=0.4W
Av=-4V/V
Av=-2V/V
Av=-1V/V
50
10 0 2 00
5 00
1k
2k
Hz
Figure 14
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 ^VDD=3.3V
RL=8Ω
2 BTL
Av=-2V/V
1
0.5
%
0.2
Po=0.1W
Po=0.4W
0.1
0 .05
Po=0.25W
0 .02
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
5k
10 k 20k
Figure 15
Total Harmonic Distortion Plus
Noise vs Output Power
10
VDD=5V
5
RL=4Ω
2 ^SE
1
20kHz
0.5
%
0.2
0.1
1kHz
0 .05
100Hz
0 .02
0 .01
1m
2m
5m 1 0m 20 m
50 m 10 0m 2 00 m
W
500 m 1
Figure 16
Ver: 1.6
Aug 04, 2005
TEL: [phone]
http://www.gmt.com.tw
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