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參數(shù)資料
| 型號(hào)： | TA8261AH |
| 廠商： | Toshiba Corporation |
| 英文描述： | TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic |
| 中文描述： | 東芝雙極線性集成電路硅單片 |
| 文件頁(yè)數(shù)： | 5/16頁(yè) |
| 文件大小： | 388K |
| 代理商： | TA8261AH |
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TA8261AH
2001-08-16
5
3. Muting function
(pin 24)
By means of controlling pin 24 less than 0.5 V, it can make the audio muting condition.
The muting time constant is decided by R
1
and C
4
and these parts is related the pop noise at power
ON/OFF.The series resistance; R
1
must be set up less than 15 k
, we recommend 10 k
.
The muting function have to be controlled by a transistor, FET and μ-COM port which has I
MUTE
≥
250 μA
ability.
Terminal 24 must not be pulled up and it shall be controlled by OPEN/LOW.
Figure 4 Muting function
Figure 5 Mute attenuation
V
mute
(V)
4. AUX. input
(pin 16)
The pin 16 is for input terminal of AUX. amplifier.
The total gain is 0dB by using of AUX. amplifier.
Therefore, the μ-COM can directly drive the AUX. amplifier.
BEEP sound or voice synthesizer signal can be input to pin 16 directly.
Figure 6 AUX. input
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