TDA7498E dual-channel Class-D digital audio amplifier chip

The TDA7498E is a high-efficiency, dual-channel Class-D audio amplifier chip designed for high-power stereo audio applications. Manufactured by STMicroelectronics, this advanced Class-D amplifier delivers up to 160W per channel (4Ω, THD+N 10%) with exceptional sound clarity and low distortion.

Built using digital pulse-width modulation (PWM) technology, the TDA7498E offers high output efficiency (up to 90%), low heat dissipation, and superior audio performance compared to traditional Class-AB amplifiers. It operates from a single 36V power supply and integrates comprehensive protection features for short-circuit, thermal overload, and undervoltage conditions.

The chip’s compact PowerSSO-36 package and fully differential input design make it ideal for use in home theater systems, active speakers, car audio amplifiers, and DIY audio projects.

Key Features:

• Output Power: 160W + 160W @ 4Ω (36V, THD+N = 10%)

• Amplifier Type: Dual-channel Class-D

• Efficiency: Up to 90%

• Operating Voltage: 14V to 39V

• Total Harmonic Distortion (THD+N): <0.01% (typical at 1W)

• High Signal-to-Noise Ratio: >100 dB

• Integrated Protections:

  • Overcurrent and Thermal Shutdown

  • Undervoltage Lockout (UVP)

  • Output DC Offset Protection

• Differential Inputs for noise immunity

• Standby and Mute Control for power management

• Package: PowerSSO-36 (compact surface-mount design)