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| 型号： | TA8217P |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.9 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP14 |
| 封装： | HDIP-12 |
| 文件页数： | 3/10页 |
| 文件大小： | 927K |
| 代理商： | TA8217P |
TA8217P
2002-10-30
2
Precautions For Use And Application
(1) Input stage
The input stage of power amplifier is comprised of a PNP differential pair preceded by a PNP emitter follower
which allows DC referencing of the source signal to ground. This eliminates the need for an input coupling
capacitor. However, in case the brush noise of volume becomes a problem, provide serially a coupling capacitor
to the input side.
(2) Adjustment of voltage gain
The voltage gain is fixed at Gv≒56.5dB by the resistors
(R1 and R2) in IC, however, its reduction is possible through
adding Rf as shown in Fig.1. In this case, the voltage gain is
obtained by the following equation.
Gv≒20og
f
R
1
R
f
R
2
R
1
R
+
It is recommeded to use this IC with the voltage gain of Gv = 40dB or over.
(3) Measures against oscillation
For the capacitors C6 and C7 to be applied for preventing the oscillation between output terminal and GND,
use the polyester film capacitor having superior quality in high frequency and temperature characteristics,
however, since the characteristics of the capacitor may be different depending on the manufactures or kinds,
apply the capacitor after confirmation.
Since the characteristics of the capacitor of the ceramic type are liable to be affected by the temperature and
the voltage, use the capacitor of larger capacity and be sure to perform the thermal test to check the oscillation
allowance.
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相关代理商/技术参数 |
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| TA8218AH | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:AUDIO POWER AMPLIFIER |
| TA8218AHQ | 制造商:Toshiba America Electronic Components 功能描述: |
| TA8220H | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:30W BTL x 2CH AUDIO POWER AMPLIFIER |
| TA8220HQ | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:30W BTL 】 2ch Audio Power Amplifier |
| TA8220HQ_06 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:30W BTL 】 2ch Audio Power Amplifier |
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