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參數(shù)資料
| 型號： | LA4555 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 2-Channel AF Power Amplifier for Radio, Tape Recorder Use |
| 中文描述： | 2通道自動對焦功率放大器收音機(jī)，磁帶錄音機(jī)的使用 |
| 文件頁數(shù)： | 3/10頁 |
| 文件大小： | 345K |
| 代理商： | LA4555 |
LA4555
No.1697–3/10
Sample Printed Circuit Pattern
(Cu-foiled side)
Description of External Parts
C1 (C2) : Feedback capacitor. The low cutoff frequency is determined by the following formula.
1
2
π
C1Rf
fL : Low cutoff frequency
Rf : Feedback resistance
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
μ
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=
Sample Application Circuit :
Bridge Amplifier Use 1
Sample Application Circuit :
Bridge Amplifier Use 2
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| LA4570M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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