G1432 Datasheet, PDF (8/15 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1432
Closed Loop Response
Figure 23
Supply Current vs Supply Voltage
10
9
8
Stereo BTL
7
6
5
4
3
2
1
0
3
4
5
6
Supply Voltage (V)
Figure 24
Output Power vs Supply Voltage
2.5
THD+N=1%
BTL
2
Each Channel
RL=4Ω
1.5
RL=3Ω
1
RL=8Ω
0.5
0
2.5
3.5
4.5
5.5
6.5
Supply Voltage (V)
Figure 25
Output Power vs Load Resistance
2
1.8
THD+N=1%
1.6
VDD=5V
BTL
1.4
Each Channel
1.2
1 _VDD=3.3V
0.8
0.6
0.4
0.2
0
0 4 8 12 16 20 24 28 32
Load Resistance(Ω)
Figure 26
Power Dissipation vs Output Power
1.8
1.6
RL=3Ω
1.4
1.2
1
RL=4Ω
0.8
0.6
0.4
VDD=5V
BTL
0.2
RL=8Ω _{Each Channel}
0
0
0.5
1
1.5
2
2.5
Po-Output Pow er(W)
Figure 27
Ver: 1.1
Jun 21, 2006
8
Power Dissipation vs Output Power
0.8
0.7
RL=3Ω
0.6
0.5
RL=4Ω
0.4
0.3
RL=8Ω
0.2
VDD=3.3V
BTL
0.1
Each Channel
0
0
0.25
0.5
0.75
1
Output Pow er(W)
Figure 28
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http://www.gmt.com.tw