HD0802A is a 3-channel audio amplifier with built-in microphone input amplifier.
Part number : HD0802 ( == SD7402 )
Functions : ALC band amplified microphone dual audio output
Package information : SMD 16PIN
Manufacturer : Wuxi YouDa Electronics
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Description
High quality audio output is available through simpleperipheral circuit and the amplifier gain can be adjusted flexibly by external resistor. It is widely used as pre-amplification in various stereo and 2.1-channel audio systems to pre-amplify the signal from the main chip audio.
Features
1. BICMOS technology
2. Dual power supply (+5V/-12V)
3. Built-in voltage regulator
4. Low distortion
5. Standby function
Block Diagram
ALC (Automatic Level Control) refers to the function of automatically adjusting the size of the audio input signal to keep the level of the output signal constant. It is used to amplify audio signals such as voice or music and maintain them at a consistent level.
Pinouts
HD0802A Datasheet PDF Download
SD7402 Datasheet PDF Download
Information related to components
HD0802A - - Etc |
PC0802 - OUTLINE DIMENSION & BLOCK DIAGRAM - Powertip - PDF
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