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參數(shù)資料
| 型號(hào)： | TA2170FLG |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.02 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC24 |
| 封裝： | 5 X 5 MM, 0.50 MM PITCH, PLASTIC, QON-24 |
| 文件頁(yè)數(shù)： | 11/13頁(yè) |
| 文件大小： | 231K |
| 代理商： | TA2170FLG |
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TA2170FLG
2006-04-19
7
3.
Adjustment of DC output voltage
Perform the following with the OUT ADJ pin (pin 13) using the power supply of VCC1 and VCC2:
If a boost voltage is applied to VCC1, VCC2 is connected to a battery and the difference between VCC1
and VCC2 is greater than or equal to 0.7 V, short pins 13 and 14 together. In this case the DC output
voltage will be as follows:
2
VCC2 .
If the difference between VCC1 and VCC2 is less than 0.7 V, or if VCC1 and VCC2 are connected to the
same power supply, leave pin 13 open.
In these cases, the DC output voltage will be
2
V
0.7
VCC2
.
4.
Switch
(1)
Timing chart
Refer to Figure 2 for the IC timing chart.
(2)
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.
(3)
Mute smoothing
Ensure that the smoothing resistor used for the mute pin is 100 k
or less. The switch circuit will
not operate normally if the value is greater than this.
200 ms
100 ms
OFF
ON
OFF
ON
OFF
OUT
MUTE
ALL MUTE
PW SW
Figure 2. Timing Chart
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