Key parameters
- Description
- Single-channel audio power amplifier circuit
- Operating voltage range
- 4.0V~12V
- Output power (THD + N = 10%)
- 700mW/8Ω 9.0V
- Output power (THD + N = 1%)
- ~
- Number of Channels
- 1
- Control terminal
- N
- Package
- DIP8/SOP8
Overview
SD386 is an audio power amplifier for low-voltage consumer products. To minimize external components, voltage gain is internally set to 20 times (26dB). Adding an external resistor and capacitor between pins 1 and 8 allows gain adjustment up to 200 times (46dB). The input is ground-referenced and the output is automatically biased to half the supply voltage. At a 6V supply, quiescent power is only 24mW, making SD386 suitable for battery-powered applications. Available in DIP8 and SOP8.
Features:
· Low quiescent power, approximately 4mA, suitable for battery operation
· Adjustable voltage gain: 20~200 times
· Wide supply range, Vcc=4~12V
· Few external components
· Low distortion
Applications:
· AM/FM radio audio amplifiers
· Line drivers
· Portable tape-recorder audio amplifiers
· Ultrasonic drivers
· Speakerphone audio systems
· TV audio systems
· Small servo drivers
· Power converters
TECHNICAL DOCUMENTS
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