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參數(shù)資料
| 型號： | TA2152FNG |
| 廠商： | Toshiba Corporation |
| 英文描述： | Low Current Consumption Headphone Amplifier (for 1.5-V/3-V Use) |
| 中文描述： | 低電流消耗耳機放大器（用于1.5-V/3-V使用） |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 278K |
| 代理商： | TA2152FNG |
TA2152FNG
2006-04-19
7
(6) Switching pins
(a) PW SW
The device is ON when this pin is set to High. To prevent the IC being turned ON by external noise, it is
necessary to connect an external pull-down resistor to the PW SW pin. The pin is highly sensitive.
(b) MUTE SW
If the MUTE SW pin is fixed to High, current will flow through the pin, even when the PW SW pin is in
OFF Mode. To prevent the IC being turned ON by external noise, it is necessary to connect an external
pull-down resistor.
The pop noise heard when the MUTE SW switch is turned ON or OFF can be reduced by connecting an
external capacitor to the MUTE TC pin.
(c) Switch sensitivity (Ta
=
25°C)
(7) Miscellaneous
The following capacitors must have excellent temperature and frequency characteristics.
Capacitor between V
CC1
(pin 14) and GND (pin 20)
Capacitor between V
CC2
(pin 11) and PW GND (pin 7)
Capacitor between BIAS IN (pin 23) and GND (pin 20)
Capacitor between BIAS OUT (pin 19) and GND (pin 20)
Capacitor between RF IN (pin 22) and GND (pin 20)
PW SW
MUTE SW
H level
IC ON
H level
Mute ON
L level
IC OFF
L level
Mute OFF
PW SW
MUTE SW
Supply voltage V
CC1
(V)
Supply voltage V
CC1
(V)
P
1
P
1
0
0
1
2
3
5
4
1
2
3
4
5
0.3 V
1.0 V
4.5 V
H
L
0
0
1
2
3
5
4
1
2
3
4
5
0.3 V
1.5 V
4.5 V
H
L
Figure 4 Switch sensitivity
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