HXT4863 datasheet, PDF - EEWORLD Datasheet

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HXT4863: Description2x2.2W two-channel audio power amplifier; CategoryAnalog mixed-signal IC; File Size2MB，17 Pages; Manufacturer北京银河昊星

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HXT4863 Overview

2x2.2W two-channel audio power amplifier

Features

HXT4863 2x2.2W Two-channel Audio Power Amplifier with Stereo Headphone Output Mode

Overview:

HXT4863 is a dual-channel audio power amplifier chip with stereo headphone output mode. The operating voltage is 5V, the average output power is 2.2W when the load is 4Ω resistance; the average output power is 2.5W when the load is 3Ω resistance, and the maximum distortion rate is less than 1.0%. In addition, when driving stereo headphones, the amplifier can work in single-ended mode. This audio power amplifier only requires a few peripheral devices to provide high-quality output power, greatly simplifying the audio system design. HXT4863 combines dual-channel bridge speakers and stereo headphones on a chip. HXT4863 adopts an externally controlled low-power shutdown mode, a stereo headphone amplification mode, and an internal thermal shutdown protection mechanism, and uses the characteristics of the circuit to reduce noise (ticking and crackling) and distortion.

Key Specs:

①When the input signal frequency is 1kHz and the THD+N value is 1%, the output power PO

HXT4863M/HXT4863N/HXT4863MTE, connected to 3Ω∕4Ω load 2.5W (typical)∕2.2W (typical)

HXT4863MT, connected to 8Ω load 1.2W (typical)

②Single-ended mode, connected to 32Ω load, when the average output power is 75mW, THD+N 0.5% (maximum)

③ Shutdown current 0.1μA (typical)

④Power supply voltage range 2.0V～5.5V

Characteristic Parameters:

①Realize peripheral control

②Low power loss and shutdown mode

③Stereo headphone amplifier mode and thermal resistance protection

④Suppress ticking noise through circuit design

⑤TSSOP20/SOP16/DIP16 package

Replace reference:

HXT4863 completely replaces National Semiconductor LM4863

typical application:

①Multimedia monitor

②Portable computers and desktop computers

③Portable TV, DVD, etc.

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