Audio Power Amplifier - Class AB


PT3371

PT3371 is a Class-AB audio power amplifier with high efficiency and high acoustic quality. The maximum output power is up to 3 Watt on condition of 4Ω speaker load (VDD = 5V, BTL, thd + n = 10%)。

PT3371 integrates feedback resistor, and the output LC low-pass filter is not required. The device operates with a few external components, minimizes the PCB size.

Built-in over- temperature protection to increase system reliability. PT3371 also provide a function to suppress “pop” sound when power on, it can improve the feelings of the audiences.

FEATURES


● CMOS technology

● Supply Voltage(VDD) from 2.5V to 5.5V

● Maximum output power:3W (VDD=5V, RL=4Ω, THD=10%）

● Integrated low-pass filter for out-of-band noise rejection

● Gv can be adjusted by adjusting the input resistance

● Shutdown function, turn on can into save mode

● Built-in pop and click noise suppress

● Built-in over-temperature protection

● Package Type - SOP 8

                               - HSOP 8

APPLICATIONS


● Portable speaker

● LCD TV or Monitor

● Laptop or MID

● Portable DVD

資源下載

Documentation

TitleFileVersionDate
DatasheetPT3371.pdfV1.22022/5/11

Tools

Application Note