參數(shù)資料
型號: LA4147
元件分類: 音頻/視頻放大
英文描述: 0.9 W, 2 CHANNEL, AUDIO AMPLIFIER, SIP9
封裝: SIP-9
文件頁數(shù): 4/7頁
文件大?。?/td> 340K
代理商: LA4147
LA4147
Νο.1598-4/7
Description of external parts
C1 (47
μF) : Feedback capacitor (NF capacitor)
Low cutoff frequency fL depends on this capacitor. fL = 90Hz for C1 = 47μF. Decreasing the capacitor
value makes the starting time earlier.
C2 (100
μF) : Bootstrap capacitor
C3 (0.15
μF) : Oscillation blocking capacitor
It is recommended to use a polyester film capacitor being good in temperature characteristic, high
frequency characteristic.
C4 (470
μF) : Output capacitor
C5 (47
μF) : Decoupling capacitor
Serves to reject ripple. The starting time depends on this capacitor. Increasing the capacitor value makes
the starting time later.
C6 (470
μF) : Power capacitor
Place as close to the power pin of the IC as possible.
R1 (30k
Ω) : Input bias resistor
Serves to apply input bias. The input impedance almost entirely depends on this resistor value. If a
variable resistor also serves for this purpose, this resistor can be omitted. In this case, it is recommended
to use a resistor of 30k
Ω.
相關(guān)PDF資料
PDF描述
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