The SGM4809YMS/TR is a low-power, stereo, Class-AB headphone amplifier from SG Micro Corp. It is designed to deliver high-quality audio performance in portable devices while minimizing power consumption. This amplifier is capable of driving low-impedance headphones and offers features that enhance audio clarity and reduce noise.

Applications

• Portable media players
• Mobile phones
• Tablets
• Laptops
• Gaming devices

Features

• Stereo Class-AB headphone amplifier
• Low power consumption
• Optimized for portable applications
• Short-circuit protection
• Thermal overload protection
• High signal-to-noise ratio (SNR)
• Low total harmonic distortion (THD)
• Small form factor package

Benefits

• Extended battery life in portable devices due to low power consumption
• High-quality audio output ensures a superior listening experience
• Protection features enhance the reliability and lifespan of the device
• Compact size allows for integration into space-constrained applications
• Reduced distortion provides a cleaner and more accurate sound reproduction

Technical Specifications

The SGM4809YMS/TR typically operates on a single 2.5V to 5.5V power supply. It features a high power supply rejection ratio (PSRR), which helps to filter out noise from the power supply, further enhancing audio quality. The device is available in a small MSOP-10 package, making it suitable for densely populated PCBs.

The amplifier's low THD+N (Total Harmonic Distortion plus Noise) ensures minimal added distortion to the audio signal. Additionally, the built-in short-circuit and thermal overload protection mechanisms safeguard the device from potential damage due to electrical faults or excessive heat, ensuring reliable operation even under demanding conditions. The SGM4809YMS/TR is designed to provide a balance between audio performance and power efficiency, making it a popular choice for a wide range of portable audio applications.