G1432 Datasheet, PDF (7/15 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
G1432
100u
90u
80u
70u
60u
50u
40u
V
30u
20u
Output Noise Voltage
vs Frequency
VDD=3.3V
RL=4Ω
BW=22Hz to 22kHz
A- Weighted Filter
10u
20
50
100
200
500
1k
2k
5k
10k 20k
Hz
Figure 17
Supply Ripple Rejection
Ratio vs Frequency
+0_T
-10
-20
-30
-40
-50
d
-60
B
-70
-80
-90
-100
-110
-120
20
VDD=5V
RL=4Ω
CB=4.7µF
50
100
200
500
1k
2k
Hz
Figure 18
5k
1 0k 20k
+0_T
-10
-20
-30
-40
-50
d
B
-60
-70
-80
-90
-100
-110
-120
20
Supply Ripple Rejection
Ratio vs Frequency
VDD=5V
RL=4Ω
CB=4.7µF
50
100
20 0
500
1k
2k
Hz
Figure 19
5k
10k 20k
Crosstalk vs Frequency
-20
-25 _VDD=5V
-30
Po=1.5W
-35
-40 RL=4Ω
-45 _BTL
-50
-55
d
-60
B
-65
L to R
-70
-75
-80
-85
-90 R to L
-95
-100
20
50 100 200
500 1k
2k
Hz
Figure 20
5k 10k 20k
-20
-25
-30
-35
-40
-45
-50
-55
d
-60
B
-65
-70
-75
-80
-85
-90
-95
-100
20
Crosstalk vs Frequency
VDD=3.3V
Po=0.75W
RL=4Ω
BTL
L to R
R to L
50 100 200
500 1k
2k
5k
Hz
Figure 21
10k 20k
Ver: 1.1
Jun 21, 2006
7
Closed Loop Response
Figure 22
TEL: [phone]
http://www.gmt.com.tw