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LA4663 Datasheet(PDF) 7 Page - Sanyo Semicon Device |
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LA4663 Datasheet(HTML) 7 Page - Sanyo Semicon Device |
7 / 10 page Other Notes • Standby function Pin 5 in this IC is the standby pin, and applying a voltage of 2.0 V or higher will activate this function. The pin 5 influx current for an applied voltage of 5 V will be about 240 µA. ISTB = 5 V – 1.4 V = 240 µA 15 k Insert an external current limiting resistor (RSTB) if it is necessary to limit this influx current when using a microcontroller. If this input voltage is applied by a circuit or device other than a microcontroller, calculate the value for RSTB from the following formula such that the pin 5 influx current due to the applied VSTB is under 500 µA. RSTB = Applied voltage (VSTB) – 1.4 V – 15 k Ω 500 µA No. 5905-7/10 LA4663 5 VSTB (RSTB) ISTB About 1.4 V 15 k Ω A10632 C1 GND STBY MUTE C4 R1 IN1 PRE-GND IN2 C2 C3 14 1 C5 C7 R3 C6 R2 C9 R5 C8 R4 —OUT1 OUT1 —OUT2 OUT2 GND VCC Sample Printed Circuit Board Pattern (Copper surface) |
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