Global Mixed-mode Technology Inc.
G1426
OUTPUT POWER vs LOAD RESISTANCE
POWER DISSIPATION vs OUTPUT POWER
1.8
1.6
1.4
1.2
1
2.5
2
THD+N=1%
BTL
Each Channel
RL=3Ω
RL=4Ω
1.5
1
0.8
0.6
0.4
0.2
0
VDD=5V
VDD=5V
BTL
Each Channel
0.5
0
RL=8Ω
VDD=3.3V
0
5
10
15
20
25
30
35
0
0.5
1
1.5
2
2.5
Load Resistance(Ω)
Po-Output Power(W)
Figure 18
Figure 19
Recommended PCB Layout
Unit:mm
POWER DISSIPATION vs OUTPUT POWER
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
RL=3Ω
RL=4Ω
VDD=3.3V
RL=8Ω
BTL
Each Channel
0
0.2
0.4
0.6
0.8
1
1.2
Po-Output Power(W)
Figure 20
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.0
Dec 04, 2003
9
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
