G1421 Datasheet, PDF (8/24 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=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 2 00
Po=25mW
Po=75mW
5 00
1k
2k
Hz
5k
10 k 20k
Figure 24
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Power
20kHz
VDD=5V
RL=4Ω
HP-IN
Av=-2V/V
1kHz
0 .02
0 .01
1m
2m
100Hz
5m 1 0m 20 m
50m 10 0m 2 00 m
W
Figure 25
5 00 m 1
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Power
20kHz
VDD=5V
RL=8Ω
HP-IN
Av=-2V/V
1kHz
0 .02
0 .01
1m
100Hz
2m
5m 1 0m 20 m
50m 10 0m 2 00 m
W
Figure 26
5 00 m 1
10
5
2
1
0.5
0.2
%
0.1
0 .05
0 .02
0 .01
0.0 05
0.0 02
0.0 01
1m
Total Harmonic Distortion Plus
Noise vs Output Power
VDD=5V
RL=32Ω
HP-IN
Av=-2V/V
20kHz
1kHz
100Hz
2m
5m
10m
2 0m
50 m 1 00m 2 00m 5 00 m
W
Figure 27
10
5
2
1
0.5
%
0.2
0.1
0 .05
0 .02
0 .01
20
Total Harmonic Distortion Plus
Noise vs Output Power
VDD=5V
RL=4Ω
HP-IN
Po=0.5W
Av=-4V/V
Av=-2V/V
Av=-1V/V
50
100
2 00
5 00
1k
2k
Hz
Figure 28
5k
10 k 20k
Ver: 1.6
Aug 04, 2005
TEL: [phone]
http://www.gmt.com.tw
8