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參數(shù)資料
| 型號(hào)： | TA8200AH |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 13 W, 2 CHANNEL, AUDIO AMPLIFIER, PZFM12 |
| 封裝： | HZIP-12 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大?。?/td> | 330K |
| 代理商： | TA8200AH |
TA8200AH
2002-02-13
3
2.
Muting
(1) Audio muting
This IC is possible to make audio muting operation by using 11 pin muting terminal. In Fig. 3, the
equivalent circuit in the muting circuit section is shown.
By means of reducing the voltage of 11 pin down to 2.8 V or less in Fig. 3, Q1 is turned ON and the
base voltage of Q2 in the differential circuit fabricated with Q2 and Q3.
Therefore, with the voltage reduction of 11 pin, the input circuits of dummy of input terminal and
that in the doted line operate and cut-off the input signal.
After muting, the bias circuit continues is operation and the power supply current of quiescent time.
8 pin, the capacitor terminal for reducing the pop noise can reduce the pop noise through making the
time constant longer by means of inserting the capacitor externary.
In the care this terminal is not used, short 8 pin with 11 pin.
The voltage of 11 pin set up to 4 V or more.
(2) IC internal muting at VCC OFF
When VCC = 8 V or less at VCC off, the detection circuit at VCC off is operated. And the base voltage
of Q1 is reduced and the muting operation is mode.
Cautions
This IC is not proof enough against a strong E-M field by CRT which may cause malfunction such as leak.
Please set the IC keeping the distance from CRT.
400
100
Q1
11
The detection
circuit at
VCC → OFF
1k
Q3
I1
I2
D1
Q6
D2
Q4 Q5
8
2/4
1/5
I3
I4
I5
7/12
9
I6
20 k
Mute
IN
NF
OUT
VCC
Q2
Reference
voltage
Figure 3
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TA8200AH_02 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Dual Audio Power Amplifier |
| TA8200AHQ(5) | 制造商:Toshiba America Electronic Components 功能描述:Audio Amp Speaker 2-CH Stereo 13W Class-AB 12-Pin HZIP |
| TA8201 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:18W BTL x 2CH AUDIO POWER AMPLIFIER |
| TA8201AH | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:18W BTL x 2CH AUDIO POWER AMPLIFIER |
| TA8201AK | 制造商:Toshiba 功能描述:Class-AB Cut Tape |
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