G1420 Datasheet, PDF (9/20 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1420
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Frequency
VDD=3.3V
RL=8Ω
SE
Po=100mW
Av=-4V/V
Av=-2V/V
0 .02
Av=-1V/V
0 .01
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 29
5k
10 k 20k
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 _VDD=3.3V
RL=8Ω
2 _SE
1
0.5
%
0.2 _Po=50mW
0.1
Po=25mW
0 .05
0 .02
0 .01
20
Po=100mW
50
10 0 2 00
5 00
1k
2k
Hz
Figure 30
5k
10 k 20k
10
5
2
1
0.5
%
0.2
0.1
0 .05
Total Harmonic Distortion Plus
Noise vs Output Power
VDD=3.3V
RL=32Ω
SE
1kHz
20kHz
20Hz
0 .02
0 .01
1m
2m
5m
1 0m
2 0m
W
Figure 31
50 m
1 00m
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5
2
1
0.5
0.2
%
0.1
0 .05
VDD=3.3V
RL=32Ω
SE
Po=30mW
Av=-2V/V
Av=-4V/V
0 .02
0 .01
0.0 05
Av=-1V/V
0.0 02
0.0 01
20
50
10 0 2 00
5 00
1k
2k
Hz
5k
10 k 20k
Figure 32
Total Harmonic Distortion Plus
Noise vs Output Frequency
10
5 _VDD=3.3V
2 RL=32Ω
1 SE
0.5
Po=10mW
0.2
%
0.1
0 .05
Po=20mW
0 .02
0 .01
0.0 05
0.0 02
0.0 01
20
Po=30mW
50
10 0 2 00
5 00
1k
2k
Hz
5k
10 k 20k
Figure 33
Output Noise Voltage vs Frequency
10 0u
9 0u
80u VDD=5V
70u _RL=4Ω
6 0u
5 0u
4 0u
V
3 0u
BW=22Hz to 20kHz
Vo BTL
2 0u
Vo SE
1 0u
20
50
10 0 2 00
5 00
1k
2k
Hz
Figure 34
5k
10 k 20k
Ver: 1.5
Aug 04, 2005
TEL: [phone]
http://www.gmt.com.tw
9