G1420 Datasheet, PDF (12/20 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1420
Output Power vs Supply Voltage
2.5
THD+N=1%
2
BTL
RL=4Ω
Each Channel
1.5
RL=3Ω
1
0.5
RL=8Ω
0
2.5
3.5
4.5
5.5
6.5
Supply Voltage (V)
Figure 47
Output Power vs Supply Voltage
0.7
0.6
THD+N=1%
SE
0.5
Each Channel
0.4
0.3
RL=4Ω
RL=8Ω
0.2
RL=32Ω
0.1
0
2.5
3.5
4.5
5.5
6.5
Supply Voltage(V)
Figure 48
Output Power vs Load Resistance
2
1.8
VDD=5V
1.6
THD+N=1%
BTL
Each Channel
1.4
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 49
Output Power vs Load Resistance
0.7
0.6
VDD=5V
0.5
THD+N=1%
SE
Each Channel
0.4
0.3
0.2
0.1 _VDD=3.3V
0
0 4 8 12 16 20 24 28 32
Load Resistance(Ω)
Figure 50
Power Dissipation vs Output Power
1.8
1.6
RL=3Ω
1.4
1.2
1
RL=4Ω
0.8
VDD=5V
0.6
BTL
0.4
Each Channel
RL=8Ω
0.2
0
0
0.5
1
1.5
2
2.5
Po-Output Pow er(W)
Figure 51
Power Dissipation vs Output Power
0.8
0.7
RL=3Ω
0.6
0.5
RL=4Ω
0.4
0.3
VDD=3.3V
0.2
RL=8Ω
BTL
Each Channel
0.1
0
0
0.25
0.5
0.75
1
Output Pow er(W)
Figure 52
Ver: 1.5
Aug 04, 2005
TEL: [phone]
http://www.gmt.com.tw
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