LME49830 High Power Amplifier Circuit Diagram

Description

The LME49830 EF125WT1 amplifier PCB module demonstrates Texas Instruments’ LME superior fidelity power amplifier input stage ICs (drivers). The LME49830 is a completely complementary bipolar 200V input IC with 56mA (typical) of output current that has been tailored for audio applications. Owing to 56mA of current drive, the IC is capable of powering multiple power transistors to achieve considerable output power levels. The LME49830’s remarkably low distortion and minimal noise, combined with a configurable compensation scheme, results in a precisely controlled, yet highly dynamic listening experience.

Integrated Circuit Details

The core of this amplifier module utilizes the LME49830, a complex integrated circuit. This IC serves as the crucial input stage, responsible for amplifying the initial weak signals. It's a completely complementary bipolar device, meaning it contains both N-channel and P-channel transistors within a single package. This symmetrical design contributes significantly to the amplifier’s overall performance, reducing distortion and improving stability. The IC’s specifications, including a 200V input voltage rating and 56mA of typical output current, dictate the amplifier’s maximum operating parameters, ensuring safe and efficient operation. Furthermore, the LME49830’s architecture allows for precise control over the amplifier’s behavior, resulting in a refined and accurate audio reproduction.

Circuit diagram

User adjustable compensation facilitates the minimization of high-frequency distortion and the optimization of slew rate and power bandwidth. The IC’s high performance characteristics, features and user customization make the driver a highly reliable, unique input stage solution for high power amplifiers. While the amplifier module provides a convenient way for performance measurement verification, it also can be used to validate the solution’s sonic performance in the desired test environment. The solution presented has undergone listening evaluations in a dedicated sound room for verification of sonic performance.