Global Mixed-mode Technology Inc.
G1426
TOTAL HARMONIC DISTORTION PLUS NOISE
vs FREQUENCY
SUPPLY RIPPLE REJECTION RATIO
vs FREQUENCY
+0
ꢀꢀ
10
ꢀꢀ
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
5
VDD=5V
RL=4Ω
VDD=3.3V
2
RL=8Ω
CB=4.7µF
BTL
1
Vripple=0.5Vpp
Av=-4V/V
Po=0.45W
0.5
d
%
B
Av=-2V/V
0.2
0.1
BTL Mode
0.05
0.02
0.01
Av=-1V/V
-100
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Hz
Figure 11
Figure 12
OUTPUT NOISE VOLTAGE vs FREQUENCY
CHANNEL SEPARATION
100u
90u
-30
-35
80u
70u
-40
VDD=5V
-45
Po=1.5W
60u
50u
-50
RL=4Ω
BTL
-55
40u
-60
VDD=5V RL=4Ω
BTL Mode 20kHz
d
Channel A to B
V
-65
-70
-75
-80
-85
-90
-95
30u
20u
B
Channel B to A
10u
-100
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
1k
2k
5k
10k
20k
Hz
Hz
Figure 13
Figure 14
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.0
Dec 04, 2003
7
GMT [ GLOBAL MIXED-MODE TECHNOLOGY INC ]
