Mô đun khuếch đại âm thanh kỹ thuật số 5128 5W tại Lotte Market

Giới thiệu Mô đun khuếch đại âm thanh kỹ thuật số 5128 5W tại Lotte Market

Features:
The mono power amplifier module adopts AB/D class LTK5128 power amplifier IC, low EMI and low quiescent current, no external low-pass filter is required, and the efficiency is up to 90% in the class D power amplifier mode mode. The DRC (Dynamic range) unique inside the LTK5128 Control) Correction circuit technology reduces the distortion caused by waveform chopping when the high power output is reduced. Compared with similar products, the dynamic response is better. With short circuit current protection, under voltage protection, overheat protection.

The power supply voltage is 2.5-5.5V, more than 5.5V, the chip will burn out
The supply current is recommended to be 1A or more. Below 1A, the sound will be small.
The positive and negative poles of the power supply cannot be reversed, and the reverse chip is burned.
Load recommended 4 Euro 3W speakers
This module has a mute switch, high level mute, low level playback, default is low level playback
This module is suitable for amplifying the audio signal of 0.5V-1V. If the signal is too small, it needs to be connected to the preamplifier.
This module is only suitable for single-supply operation and cannot be connected to a negative power supply.

Chip introduction:
The LTK5128 is a 5W, mono Class D mode switching function, ultra low EMI, filterless audio power amplifier chip.
The LTK5128 can be easily switched to Class AB mode with a MODE pin to eliminate EM interference. Operating voltage 2.5V-5.5V, can provide more than 90% efficiency in Class D amplifier mode, the new filterless structure can eliminate the traditional low-pass filter of Class D amplifier, thus saving system cost and IPCB Space is ideal for portable applications.
The LTK5128 uses the unique DRC (Dynamic range control) technology to reduce the distortion caused by waveform chopping at high power output, and the dynamic response is better than similar products. The LTK5128 is available in an SOP-8 package.

Characteristics:
Filterless Class D Amplifier, Low Quiescent Current, and Low EMI
FM mode without interference
Excellent blasting sound suppression circuit
Low noise, low distortion
DRC dynamic distortion correction circuit
10% THD+N, VDD=5V, up to 3W output power at 4Q load
10% THD+N, VDD=5V, up to 5W output power at 20 loads
Short circuit current protection
Undervoltage protection
Shutdown current <0.5uA
Multiple power package modes: ESOP-8
Overheating protection

Application:
Bluetooth Speaker
Trolley speaker, USB audio