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参数资料
| 型号： | LA4550 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP12 |
| 封装： | DIP-12 |
| 文件页数： | 3/9页 |
| 文件大小： | 331K |
| 代理商： | LA4550 |
LA4550
No.1718–3/9
Sample Printed Circuit Pattern Cu foil-reduced board
[BTL Use 1]
[BTL Use 2]
Description of External Parts
C1 (C2) : Feedback capacitor. The low cutoff frequency is determined by the following formula.
Rf : Feedback resistor
fL : Low cutoff frequency
Since this capacitor as well as decoupling capacitor affects the starting time, the capacitor value must be fixed
with the necessary low frequency band fully considered.
C3 (C4) : Bootstrap capacitor. The output at low frequencies depends on this capacitor. Decreasing the capacitor value
lowers the output at low frequencies. A capacitor value of 47
F or more is required.
C5 (C6) : Oscillation blocking capacitor. Use a polyester film capacitor that is good in high frequency response and
temperature characteristic. The use of an electrolytic capacitor, ceramic capacitor may cause oscillation to
occur at low temperatures.
Continued on next page.
fL=
1
2
πC1Rf
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| LA4555 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:2-Channel AF Power Amplifier for Radio, Tape Recorder Use |
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