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| * DATA SHEET LND386 LOW VOLTAGE AUDIO POWER AMPLIFIER GENERAL DESCRIPTION The LND386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value up to 200. The inputs are ground referenced while the output is automatically biased to one half the supply voltage. The quiescent power drain is only 24 milliwatts when operating from a 6 volt supply, making the LND386 ideal for battery operation. FEATURES * * * * * * * * Battery operation Minimum external parts Wide supply voltage range 4V to 12V Low quiescent current drain 4mA (Typ) Voltage gains: 20-200 Ground reference output Self-centering output quiescent voltage Low distortion PIN CONFIGURATION APPLICATIONS * * * * * * * * AM-FM radio amplifiers Portable tape player amplifiers Intercoms TV sound system Line Drivers Ultrasonic drivers Small servo drivers Power converters * Linear Dimensions, Inc. * 445 East Ohio Street, Chicago IL 60611 USA * tel 312.321.1810 * fax 312.321.1830 * www.lineardimensions.com * LND386 Absolute Maximum Rating PARAMETER Supply voltage Power dissipation Input voltage Junction temperature Operating temperature Storage temperature SYMBOL Vcc PD Vin Tj TOPR TSTG MAXIMUM 15 660 0.4 +150 -20...+70 -40...+125 UNITS V mW V C C C Electrical Characteristics (TA =25C, VCC=6V,RL = 8, f = 1KHz, unless otherwise specified) PARAMETER Quiescent Current Output Power Voltage Gain Bandwidth Total Harmonic Distortion Power Supply Rejection Ratio Input Resistance Input Bias Current SYMBOL ICCQ POUT Av BW THD PSRR RIN IBIAS CONDITIONS VIN = 0 VCC=6V, THD=10% VCC=9V, THD=10% Pins 1and 8 Open 10F from Pin 1 to 8 Pins 1 and 8 Open 10F from Pin 1 to 8 Pout=125mW, Pins 1 and 8 Open Cbypass=10F, Pins 1 and 8 Open, Referred to output Pins 2 and 3 Open MIN 250 500 TYP 4 325 700 26 46 300 60 0.2 50 50 250 MAX 8 UNITS mA mW dB KHz % dB k nA * Linear Dimensions, Inc. * 445 East Ohio Street, Chicago IL 60611 USA * tel 312.321.1810 * fax 312.321.1830 * www.lineardimensions.com * LND386 Typical Applications Amplifier with Gain = 20 (Minimum parts) Amplifier with Gain = 200 Amplifier with Bass Boost Square Wave Oscillator * Linear Dimensions, Inc. * 445 East Ohio Street, Chicago IL 60611 USA * tel 312.321.1810 * fax 312.321.1830 * www.lineardimensions.com * |
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