The LPA2104A is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality Power Supply sound reproduction. The new filterless architecture allows the device to drive the speaker directly requiring no low-pass output filters, thus to save the system cost and PCB area. The LPA2104A is available in SOP-8.
应用
◆Portable Bluetooth Speaker ◆Cellular and Smart mobile phone ◆Square Speaker
数据参数
数据参数
输入电压(V)
2.5~5.5
工作类型
Class D
通道数量
1
电源抑制比(dB)
-75
输出功率
3W,5V@4Ω,10%
关断电流(uA)
2
特点
Differential input,Enough output power,Low noise
封装
SOP8
特征
特征
◆ Shutdown current:◆ 550KHz fixed frequency switching for amplifier ◆ 3W Output at 10% THD with a 4Ω Load and 5V VDD for amplifier ◆ 2.3W Output at 1% THD with a 4Ω Load and 5V VDD for amplifier ◆ Filterless, Low Quiescent Current and Low EMI ◆ Amplifier Efficiency up to 85% ◆ Free LC filter digital modulation, direct-drive speakers ◆ Fast startup time:35mS ◆ Short Circuit Protection ◆ Thermal Shutdown ◆ Few External Components to Save the Space and cost ◆ Pb-Free Package