G1426 Datasheet, PDF (7/13 Pages) Global Mixed-mode Technology Inc – 2.2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1426
TOTAL HARMONIC DISTORTION PLUS NOISE
vs FREQUENCY
SUPPLY RIPPLE REJECTION RATIO
vs FREQUENCY
10
5
2
1
0.5
%
0.2
0.1
0.05
VDD=3.3V
RL=8Ω
BTL
Po=0.45W
Av=-2V/V
Av=-4V/V
0.02
Av=-1V/V
0.01
20
50
100
200
500
1k
2k
Hz
Figure 11
5k
10k 20k
+0


-5
-10
-15
-20
-25
-30
-35
-40
-45
d
B
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
-100
20
VDD=5V
RL=4Ω
CB=4.7µF
Vripple=0.5Vpp
BTL Mode
50
100
200
500
1k
2k
Hz
Figure 12
5k
10k 20k
OUTPUT NOISE VOLTAGE vs FREQUENCY
100u
90u
80u
70u
60u
50u
40u
V
30u
VDD=5V RL=4Ω
BTL Mode 20kHz
20u
10u
20
50
100
200
500
1k
2k
Hz
5k
10k 20k
Figure 13
CHANNEL SEPARATION
-30
-35
-40
-45
-50
-55
-60
d
B
-65
-70
-75
-80
-85
-90
-95
-100
20
VDD=5V
Po=1.5W
RL=4Ω
BTL
Channel A to B
Channel B to A
50
100
200
500
1k
2k
Hz
Figure 14
5k
10k 20k
Ver: 1.0
Dec 04, 2003
TEL: [phone]
http://www.gmt.com.tw
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