LA42152 Просмотр технического описания (PDF) - SANYO -> Panasonic
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LA42152 Datasheet PDF : 9 Pages
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Continued from preceding page.
Pin No
8
12
Symbol
OUT2
OUT1
Pin Voltage
VCC = 18V
8.9
LA42352
Equivalent Circuit
Description
• Output pin
9
NF2
8.8
10
NF1
• Negative feedback pin at Power
amplifier
• Connect NF capacitor
10
PWR_GND
0
• Power GND pin
Description of External parts
C1, C2
C3
C4
C5, C6
C7, C8
C9, C10
R1, R2
R3
: Input capacitors. A value of 1.0µF is recommended for capacitors. Note that the low-frequency area
characteristics can be adjusted by changing fL.
: Ripple filter capacitor. A value of 47µF is recommended for capacitors. Decreasing the capacitance value
excessively or removing this capacitor causes ripple to occur. However, increasing the capacitance value
does not always cause ripple to reduced. Decreasing the capacitance value makes the starting time earlier.
: Power capacitor.
: Output capacitors. A value of 470µF is recommended for capacitors.
: Oscillation blocking capacitor. Use a polyester film capacitor that is good in high frequency response and
temperature characteristic.
: Feedback capacitor. A value of 47µF is recommended for capacitors. Decreasing the capacitance value
lowers the low frequency response. Increasing the capacitance value makes the starting time later.
: Resistor connected in series with oscillation blocking capacitor. Prevents phase shift attributable to the
oscillation blocking capacitor so that oscillation is hard to occur.
: Standby switch current limiting resistor. A value of 10kΩ is recommended for resistance (when the applied
voltage for the standby switch is 3V to 10V). This resistor cannot be removed.
No.A0078-5/9
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