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LA4627 Arkusz danych(PDF) 4 Page - Sanyo Semicon Device

Numer części LA4627
Szczegółowy opis  Two-Channel Audio Frequency Power Amplifier
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Producent  SANYO [Sanyo Semicon Device]
Strona internetowa  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4627 Arkusz danych(HTML) 4 Page - Sanyo Semicon Device

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LA4627
No.6501-4/6
3. FILTER (decoupling) pin (pin 8)
The pin voltage is about 1/2 VCC.
The recommended value for the filter capacitor is 100
µF.
The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 100
µF is
used.
4. P.P (pulse noise) pin (pin 9)
Pin 9 pin voltage
≈ VCC - VCE (about 0.3 V) - 5.6 V
+ 5.6 V
2 k
• The recommended value for the P.P capacitor is 4.7
µF.
The pulse noise that occurs when the standby pin is set low (power off) will
be degraded if a value under 2.2
µF is used.
Furthermore, if a value over 10
µF is used, the signal may not be cut off and
sound may remain audible when the standby pin is set low (power off).
5. MUTE (Muting)
The output signal can be controlled by shifting the pin 8 (FILTER) level towards ground with a 300 to 500
Ω resistor.
However, note that the degree of suppression is reduced if a value of 750
Ω or more is used.
ILA00061
ILA00062
Filter capacitor = 100
µF
Filter capacitor = 47
µF
Output DC voltage
Output DC voltage
AC voltage (100 mV)
AC voltage (200 mV)
VCC
9
ILA00063
Zener voltage
= 5.6 V
To the input amplifier
block/bias system
ILA00064
Mute ON
Mute OFF
Output DC voltage
Output AC voltage


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