G1426 Datasheet, PDF (9/13 Pages) Global Mixed-mode Technology Inc – 2.2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1426
OUTPUT POWER vs LOAD RESISTANCE
2.5
THD+N=1%
2
BTL
Each Channel
1.5
1
VDD=5V
0.5
VDD=3.3V
0
0
5
10
15
20
25
30
35
Load Resistance(Ω)
Figure 18
POWER DISSIPATION vs OUTPUT POWER
1.8
1.6
1.4
RL=3Ω
1.2
1
RL=4Ω
0.8
0.6
VDD=5V
0.4
RL=8Ω
BTL
Each Channel
0.2
0
0
0.5
1
1.5
2
2.5
Po-Output Power(W)
Figure 19
POWER DISSIPATION vs OUTPUT POWER
0.8
0.7
RL=3Ω
0.6
0.5
RL=4Ω
0.4
0.3
0.2
0.1
0
0
RL=8Ω
VDD=3.3V
BTL
Each Channel
0.2
0.4
0.6
0.8
1
1.2
Po-Output Power(W)
Figure 20
Recommended PCB Layout
Unit:mm
Ver: 1.0
Dec 04, 2003
TEL: [phone]
http://www.gmt.com.tw
9