The MAS9251ASMS-T is a low-power, high-performance audio amplifier designed by Micro Analog Systems. It is specifically engineered for portable audio applications where efficiency and small size are critical. This amplifier delivers high-quality audio output while consuming minimal power, extending battery life in devices such as smartphones, tablets, and portable media players.

Applications

• Smartphones: Audio amplification for speaker and headphone outputs.
• Tablets: Sound enhancement for multimedia playback.
• Portable Media Players: Amplification for high-fidelity audio experiences on the go.
• Bluetooth Speakers: Powering compact wireless speaker systems.
• Gaming Devices: Providing clear and immersive audio in handheld consoles.

Features

• Low Power Consumption: Optimized for extended battery life in portable devices.
• High Output Power: Delivers clear and loud audio output.
• Integrated Shutdown Mode: Further reduces power consumption when the amplifier is not in use.
• Short-Circuit Protection: Protects the amplifier from damage due to output shorts.
• Thermal Overload Protection: Prevents overheating and ensures reliable operation.
• Small Package Size: Allows for compact designs in portable devices.
• High PSRR (Power Supply Rejection Ratio): Minimizes noise and interference from the power supply.

Benefits

• Extended Battery Life: Low power consumption ensures longer usage time for portable devices.
• Enhanced Audio Quality: High output power and low distortion provide a superior listening experience.
• Reliable Operation: Built-in protection features ensure robust and dependable performance.
• Compact Design: Small package size enables integration into space-constrained applications.
• Reduced Noise: High PSRR minimizes unwanted noise and interference, resulting in cleaner audio.

Additional Details

The MAS9251ASMS-T typically operates from a low voltage power supply, making it suitable for battery-powered devices. It is designed with a Class AB architecture to provide a balance between efficiency and audio fidelity. The amplifier also includes features such as a gain control to allow for adjustable output levels and an integrated mute function. The specific technical specifications include the output power at different load impedances, total harmonic distortion plus noise (THD+N), signal-to-noise ratio (SNR), and operating temperature range. The device is available in a small surface-mount package (MSOP), facilitating ease of assembly in high-volume manufacturing environments.