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LA4601 Datasheet(PDF) 4 Page - Sanyo Semicon Device

Part # LA4601
Description  Audio Power Amplifier for Radio Cassette Recorders
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4601 Datasheet(HTML) 4 Page - Sanyo Semicon Device

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LA4601
No. 6013-4/7
1. Standby switching function
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
µA to
pin 7.
• When directly connecting the microcontroller, 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 VBE (1.4V).
Input impedance is approx. 30 k
Ω.
• The recommended value for the input capacitor is 0.22
µF, but this can be varied in order to adjust the starting time
(ts). (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 VCC.
The recommended value for the filter capacitor is 100
µF.
When capacitance is lower, pop noise when setting the standby pin to Low (power OFF) will increase.
Applied voltage
Applied voltage – VBE (approx. 0.7V)
2 k
2 k
Pin Descriptions
Filter capacitor= 100
µF
Filter capacitor= 47
µF
Current supplied to pin 7
Input capacitator
1.0
µF
2.2
µF
3.3
µF
4.7
µF
10
µF
Starting time (ts)
0.2s
0.3s
0.5s
0.65s
1.5s
=
.
.
7
To bias circuit
VCC
2k
2k
AC voltage (100 mV)
Output DC voltage
AC voltage (200mV)
Output DC voltage
+


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