參數(shù)資料
型號: LA4600
廠商: Sanyo Electric Co.,Ltd.
元件分類: 音頻放大器
英文描述: Audio Power Amplifier for Radio Cassette Recorders
中文描述: 音頻功率放大器,收錄音機
文件頁數(shù): 4/7頁
文件大?。?/td> 66K
代理商: LA4600
LA4600
No. 6012-4/7
1. Standby switching function (7)
Power is switched ON and OFF by controlling the High and Low states at pin
7, respectively (standby). To switch power ON, apply 1.5V or more, or 800
μ
A to pin 7.
7
VCC
2k
2k
To bias circuit
When directly connecting a microcontroller with this pin, add a resistor in series
to optimize the current for the microcontroller.
2. Input pins (8,10)
Voltage at the input pins is approx. 2 V
BE
(1.4V).
Input impedance is approx. 30 k
.
The recommended value for the input capacitor is 0.22
μ
F, but this can be varied in order to adjust the starting time
(t
s
). (The starting time is the time required from applying voltage to the standby pin until sound output is obtained. )
3. Filter (decoupling) pin (5)
Pin voltage is approx. 1/2 V
CC
.
The recommended value for the filter capacitor is 100
μ
F.
When capacitance is lower, pop noise when setting the standby pin to Low (power OFF) will increase.
Current supplied to pin 7
Applied voltage
Applied voltage – V
BE
(approx. 0.7V)
2 k
2 k
+
Pin Descriptions
AC voltage (100 mV)
Output DC voltage
AC voltage (200mV)
Output DC voltage
Filter capacitor= 100
μ
Filter capacitor= 47
μ
F
Input capacitator
1.0
μ
F
2.0
μ
F
3.3
μ
F
4.7
μ
F
10
μ
F
Starting time (t
s
)
0.2s
0.3s
0.5s
0.65s
1.5s
=
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