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LA4708 Datasheet(Fiches technique) 4 Page - Sanyo Semicon Device

Numéro de pièce LA4708
Description  20 W 2-channel BTL AF Power Amplifier for Car Stereos
Télécharger  9 Pages
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Fabricant  SANYO [Sanyo Semicon Device]
Site Internet  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4708 Datasheet(HTML) 4 Page - Sanyo Semicon Device

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Sample Print Pattern
Description of External Components
C1, C4
Input capacitors
2.2 µF is recommended. fL can be varied by C1, C4 capacitances to adjust the
bass range.
C2
Decoupling capacitor
(ripple filter)
C3
Amplifier on time setting
capacitor
Approximately 0.8 second for 33 µF. Since the on time is proportional to this
capacitance, it can be set as desired by varying this capacitance.
(Refer to the characteristics curve.)
C5
Power supply capacitor
C6, C7, C8, C9
Oscillation blocking capacitors
Use polyester film capacitors (Mylar capacitors) with good temperature
characteristics. (R2, R3, R4, and R5 used jointly.) Since stability may be
affected slightly by the pattern layout, etc., 0.1 µF or more is recommended.
R1
Standby switch current limiting
resistor
10 k
Ω is recommended (when the applied voltage for the standby switch is
2.5 V to 13.2 V). This resistor cannot be removed.
Copper foil area 90
× 105 mm2
LA4708
No.5245 -4/9


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