G1421 Datasheet, PDF (5/24 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
RL=4Ω
2 BTL
Av=-2V/V
1
0.5
%
0.2
Po=1.5W
Po=0.25W
0.1
0 .05
Po=0.75W
0 .02
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 5
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Power
10
VDD=5V
5
RL=8Ω
2
20kHz
BTL
Av=-2V/V
1
0.5
%
0.2
0.1
1kHz
0 .05
20Hz
0 .02
0 .01
3 m 5 m 10m 20m
5 0m
1 00m
W
20 0m
Figure 6
500 m
1
23
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Frequency
VDD=5V
RL=8Ω
BTL
Av=-2V/V
Po=0.25W
Po=1W
Po=0.5W
0 .02
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 7
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5
2
1
0.5
%
0.2
VDD=5V
RL=8Ω
BTL
Po=1W
Av=-4V/V
Av=-2V/V
0.1
0 .05
Av=-1V/V
0 .02
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 8
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Power
10
5
20kHz
2
1
0.5
%
0.2
1kHz
0.1
VDD=3.3V
0.05 _RL=3Ω
BTL
0 .02
20Hz
0 .01
1m
2m
5m 1 0m 20 m
50 m 10 0m 2 00 m
W
500 m 1
Figure 9
Total Harmonic Distortion Plus
Noise vs Output Power
10
5
20kHz
2
1
0.5
%
0.2
1kHz
0.1 _VDD=3.3V
0.05 ^RL=4Ω
BTL
0 .02
20Hz
0 .01
1m
2m
5m 1 0m 20 m
50 m 10 0m 2 00 m
W
500 m 1
Figure 10
Ver: 1.6
Aug 04, 2005
TEL: [phone]
http://www.gmt.com.tw
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