G1420
Global Mixed-mode Technology Inc.
Total Harmonic Distortion Plus
Total Harmonic Distortion Plus
Noise vs Output Frequency
Noise vs Output Frequency
10
10
5
5
VDD=3.3V
VDD=3.3V
RL=8
Ω
RL=8
SE
Ω
2
1
2
1
SE
Po=100mW
Av=-4V/V
Po=25mW
0.5
0.5
%
%
0.2
0.1
0.2
0.1
Po=50mW
Av=-2V/V
0.05
0.05
0.02
0.01
0.02
0.01
Av=-1V/V
Po=100mW
20
50
100
200
5 00
Hz
1k
2k
5 k
10 k
20k
20
50
100
2 00
500
Hz
1k
2 k
5k
10k
20k
Figure 29
Figure 30
Total Harmonic Distortion Plus
Noise vs Output Frequency
Total Harmonic Distortion Plus
Noise vs Output Power
10
5
10
5
VDD=3.3V
VDD=3.3V
2
1
RL=32
Ω
RL=32
SE
Ω
2
1
1kHz
SE
Av=-4V/V
0.5
Po=30mW
0.2
0.1
0.5
20kHz
Av=-2V/V
%
%
0.2
0.1
0.05
0.02
0.01
20Hz
0.05
0.005
Av=-1V/V
0.02
0.01
0.002
0.001
20
50
100
2 00
500
Hz
1k
2 k
5k
10k
20k
1m
2m
5m
1 0m
W
20m
50m
1 00m
Figure 31
Figure 32
Total Harmonic Distortion Plus
Noise vs Output Frequency
Output Noise Voltage vs Frequency
10
100u
90u
80u
5
VDD=5V
VDD=3.3V
BW=22Hz to 20kHz
70u
60u
RL=32
2
1
Ω
RL=4
Ω
SE
50u
40u
0.5
Po=10mW
Vo BTL
Vo SE
0.2
0.1
%
V
30u
20u
0.05
Po=20mW
0.02
0.01
0.0 05
Po=30mW
0.0 02
0.0 01
10u
20
20
50
100
200
5 00
Hz
1k
2k
5 k
10 k
20k
50
100
2 00
500
Hz
1k
2 k
5k
10k
20k
Figure 33
Figure 34
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.5
Aug 04, 2005
9
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
