MAX9726BETP+T

Series:	DirectDrive®
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Class AB
Output Type:	Headphones, 2-Channel (Stereo)
Max Output Power x Channels @ Load:	124mW x 2 @ 16 Ohm
Voltage - Supply:	2.7 V ~ 5.5 V
Features:	Bass Boost, Depop, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	20-TQFN (4x4)
Package / Case:	20-WFQFN Exposed Pad
Base Part Number:	MAX9726

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MAX9726BETP+T - Application Field and Working Principle

The MAX9726BETP+T is an audio amplifier technology used in linear-amplifiers range of audio systems. This is because this amplifier offers a low-noise, low-distortion and wide dynamic range performance that makes it suitable for multichannel applications. It provides low-power consumption even when the circuit is driven at high power levels, and can be used for both analog and digital audio applications.The MAX9726BETP+T amplifiers offer high-fidelity sound in audio systems, with their low-noise and wide dynamic range performance that replenishes the soundstage, enhancing the listener experience. When used in combination with other stereo components, it provides a reliable, high-quality audio experience in consumer hi-fi, studio or professional audio systems.

Application Field

MAX9726BETP+T amplifiers can be used in various applications such as consumer Hi-Fi, Multichannel Audio Processing, Multimedia Audio, Professional Audio, and Multichannel Broadcast Equipment. In consumer Hi-Fi, it is suitable for powering subwoofers, Stereo receivers, multiroom audio systems and home theatre systems. In Multichannel Audio Processing, it can be utilized in Studio Equipment, Music Synthesizers, cinemas, etc. In multimedia audio, it can be used in Karaoke Systems, Portable Audio Players, Video Games and Home Theatre Systems.

Working Principle

MAX9726BETP+T amplifiers employ Class D amplifier topology- meaning it works on the principles of switching on and off the circuit at frequency of between 25 kHz and 500 kHz. This allows for increased efficiency in the delivery of sound. This type of topology utilizes three main power transistors, namely the NPN transistors, the PNP transistors and the H-Bridge transistors. These three transistors are responsible for the modulation of output power, such that the desired audio output is achieved. Specifically, NPN transistors act as switches that turn on and off high-current power delivery to the speaker, while the PNP transistors act as current source that provides the ground reference. Finally, the H-bridge transistors sets the current flow of the loudspeaker, depending on the audio signal level, sending either positive or negative current to the speaker. Therefore, MAX9726BETP+T amplifiers operate on the basis of modulation of current, instead of voltage, providing a more efficient flow of energy.

Conclusion

The MAX9726BETP+T is an efficient and reliable technology used in audio amplifiers. It provides low-noise, low-distortion and wide dynamic range performance, allowing for realistic sound replication in both analog and digital audio applications. Furthermore, it can be used in various applications such as consumer Hi-Fi, Multichannel Audio Processing, Multimedia Audio, Professional Audio, and Multichannel Broadcast Equipment. As such, this technology is highly versatile and can be used in multiple applications to enhance sound quality and delivery.

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