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LA4629 Arkusz danych(PDF) 3 Page - Sanyo Semicon Device |
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LA4629 Arkusz danych(HTML) 3 Page - Sanyo Semicon Device |
3 / 6 page LA4629 No.6502-3/6 Block Diagram Pin Functions 1. Standby switch function (pin 6) • If a microcontroller output signal is applied directly, insert a resistor in series and adjust the current to a level optimal for the drive capability of the microcontroller. 2. Input pins (pins 9 and 10) The input pin voltage is about 2 VBE (1.4 V). The input pin impedance is about 30 k Ω. • Although the recommended value for the input capacitor is 0.22 µF, the starting time can be modified by changing the value of this capacitor. (The time from the point a voltage is applied to the standby pin to the point sound is emitted.) Input capacitor 1.0 µF 2.2 µF 3.3 µF 4.7 µF 10 µF Starting time (ts) 0.2 s 0.3 s 0.5 s 0.65 s 1.5 s ILA00075 2 k Ω Rx + STBY 6 STBY pin applied voltage: 5 V To hold the pin 6 inflow current to about 750 µA insert a resistor (Rx) of 4.7 kΩ STBY pin applied voltage: 12 V To hold the pin 6 inflow current to about 750 µA insert a resistor (Rx) of 14 kΩ (12 kΩ). STBY pin applied voltage: Other value (Vx) To hold the pin 6 inflow current to about 750 µA insert a resistor (Rx) of (Vx - 1.5 V)/750 µA. Applied standby voltage Vx The inflowing current at an applied voltage of 1.5 V, i.e. the point when the amplifier turns on, is approximately 750 µA. ch1 Input ch2 Input PRE GND ch1 Output ch2 Output POWER GND STBY P.P Filter VCC ILA00076 9 6 12 10 8 7 3 5 2 1 ch2 input amplifier Standby SW TSD protector Pop noise prevention block Ripple filter ch1 input amplifier Output amplifier Output amplifier REF amplifier RNf1 Rf1 Rf2 RNf2 |
Podobny numer części - LA4629 |
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Podobny opis - LA4629 |
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