TS4900 查看數據表（PDF） - STMicroelectronics
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TS4900 Datasheet PDF : 19 Pages
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TS4900
Fig. 21 : Output Power vs Load Resistance
Fig. 22 : Output Power vs Load Resistance
1.0
THD+N=1%
Gv = 2 & 10
0.8
Cb = 1µF
F = 1kHz
Vcc=5V
BW < 125kHz
0.6
Tamb = 25°C
Vcc=4.5V
0.4
Vcc=4V
1.2
THD+N=10%
Gv = 2 & 10
1.0
Vcc=5V
Cb = 1µF
F = 1kHz
BW < 125kHz
0.8
Tamb = 25°C
Vcc=4.5V
0.6
Vcc=4V
0.4
0.2
0.2
Vcc=3.5V
Vcc=3V
Vcc=2.5V
0.0
) 8
16
24
32
t(s Load Resistance ( )
duc Fig. 23 : Clipping Voltage vs Supply Voltage
Pro t(s) 1.0
Tamb = 25°C
te c 0.9
le du 0.8
4Ω High Side
so ro 0.7
4Ω Low Side
b P 0.6
- O te 0.5
) le 0.4
8Ω Low Side
8Ω High Side
t(s o 0.3
c bs 0.2
2.5
3.0
3.5
4.0
4.5
5.0
u O Supply Voltage (V)
Prod t(s) - Fig. 25 : Noise Floor
lete uc 100
d Vcc = 2.5V to 5V
so ro Rin = Rfeed = 22kΩ
80 Cb = Cin = 1µF
b P Input Grounded
BW < 22kHz
O te 60 Tamb = 25°C
ole 40
V +V
OUT1
OUT2
Obs20
Standby = ON
Vcc=3.5V
Vcc=3V
Vcc=2.5V
0.0
8
16
24
32
Load Resistance ( )
Fig. 24 : Frequency response vs Cin & Cfeed
10
5
0
-5
-10
-15
-20
-25
10
Cfeed = 330pF
Cfeed = 680pF
Cin = 470nF Cfeed = 2.2nF
Cin = 22nF
Cin = 82nF
Rin = Rfeed = 22kΩ
Tamb = 25°C
100
1000
Frequency (Hz)
10000
0
20
100
1000
Frequency (Hz)
10000
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