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| UTC LM386 LINEAR INTEGRATED CIRCUIT LOW VOLTAGE AUDIO POWER AMPLIFIER DESCRIPTION The UTC LM386 is a power amplifier, designed for use in low voltage consumer applications. The gain is internally set to 20 keep the external part count low, but the additional of external resistor and capacitor between pin 1 and pin 8 will increase the gain to any value up to 200. SOP-8 FEATURES *Minimum external parts *Wide supply voltage range: *Voltage gains:20~200 *Ground referenced input *Low distortion 4V~12V DIP-8 PIN CONFIGURATIONS Gain 1 8 Gain -Input 2 7 Bypass UTC LM386 +Input 3 6 VCC GND 4 5 Output BLOCK DIAGRAM 6 VCC 7 Bypass 15k 8 Gain 1 Gain 15k 15k 5 Output 3 +Input 2 -Input 150 1.35k 50k 50k 4 GND UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R107-007,B UTC LM386 PARAMETER Supply Voltage Power Dissipation Input Voltage Operating Temperature Storage Temperature DIP-8 SOP-8 LINEAR INTEGRATED CIRCUIT SYMBOL Vcc Pd Vi Topr Tstg ABSOLUTE MAXIMUM RATINGS(Ta=25C ) VALUE 15 1250 600 -0.4V~+0.4V 0 to 70 -40 to 150 UNIT V mW V C C ELECTRICAL CHARACTERISTICS( Ta=25C, all voltage referenced to GND unless otherwise specified) PARAMETER Quiescent circuit current Output Power Voltage Gain Bandwidth Total harmonic distortion Input Resistance Input Bias current SYMBOL ICCQ Po GV BW THD Ri IBIAS TEST CONDITIONS Vi=0 Vcc=6V,THD=10% Vcc=9V,THD=10% Pin1 and pin 8 open 10F fron pin 1 and pin 8 Pin1 and pin 8 open 10F fron pin 1 and pin 8 Po=125mW,pin1 and pin 8 open Pin1 and pin 8 open MIN 250 500 TYP 4 325 700 26 46 300 60 0.2 50 250 MAX 8 UNIT mA mW mW dB dB kHz kHz % k nA APPLICATION CIRCUIT Fig. 1 GV =20dB Vs 6 2 1 8 2 5 0.1 F 10 10k 250 F Fig. 2 GV =200dB Vs 6 1 8 10 F 250 F 5 7 4 bypass 0.1 F 10 Vin 3 UTC LM386 7 10k 4 Vin 3 UTC LM386 UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R107-007,B |
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