Global Mixed-mode Technology Inc.
G1422
Stereo BTL
Channel Separation
-30
-35
-40
-45
-50
-55
-60
d
B
-65
-70
-75
-80
-85
-90
-95
-100
20
50
100
200
Supply Current vs Supply Voltage
9
Supply Current(mA)
VDD=5V
Po=75mW
RL=32
Ω
SE
8
7
6
5
4
3
Channel B to A
500
Hz
1k
2k
5k
10k
20k
Channel A to B
Stereo SE
2
3
4
5
Supply Voltage(V)
6
Figure 23
Figure 24
Output Power vs Supply Voltage
3
2.5
Output Power(W)
2
1.5
1
RL=8
Ω
0.5
0
2.5
3.5
4.5
5.5
Supply Voltage(V)
6.5
RL=3
Ω
THD+N=1%
BTL
Each Channel
RL=4
Ω
0.25
Output Power vs Supply Voltage
THD+N=1%
SE
Each Channel
0.2
Output Power(W)
0.15
RL=16
Ω
0.1
0.05
RL=32
Ω
0
2.5
3.5
4.5
Supply Voltage(V)
5.5
6.5
Figure 25
Figure 26
Output Power vs Load Resistance
2.5
THD+N=1%
BTL
Each Channel
VDD=5V
1.5
Output Power(W)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
VDD=3.3V
0
0
10
20
30
Load Resistance(Ω)
40
0
4
Output Power vs Loard Resistance
THD+N=1%
SE
Each Channel
VDD=5V
2
Output Power(W)
1
0.5
VDD=3.3V
8
12
16
20
24
28
32
Load Resistance(Ω)
Figure 27
Figure 28
Ver: 1.2
Jun 29, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
7
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
