MAX9752BETI+

Series:	DirectDrive®
Packaging:	Tube
Part Status:	Obsolete
Type:	Class D
Output Type:	2-Channel (Stereo) with Stereo Headphones
Max Output Power x Channels @ Load:	2.2W x 2 @ 4 Ohm; 62mW x 2 @ 16 Ohm
Voltage - Supply:	4.5 V ~ 5.5 V
Features:	Depop, Short-Circuit and Thermal Protection, Shutdown, Volume Control
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	28-TQFN (5x5)
Package / Case:	28-WFQFN Exposed Pad
Base Part Number:	MAX9752

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The MAX9752BETI+ is a Class D audio amplifier from Maxim Integrated. It is used to drive both speaker loads and headphones. It is a low power, low distortion amplifier with a wide range of audio applications. This amplifier uses a patented DirectFET technology to provide superior power efficiency and lower power output in applications requiring high fidelity audio output. The MAX9752BETI+ is suitable for driving both low impedance (4 ohms) and medium impedance (8 to 32 ohms) speakers, and headphones. It is capable of providing a powerful and clean audio output of up to 6W (into 8ohm speaker) or 4W (into 4 ohm speaker). It has a wide range of input voltages, from 2.2V to 7V. It is a two-channel stereo amplifier with adjustable volume, bass, treble, and balance controls. The working principle of the MAX9752BETI+ is based on Class D architecture. In this architecture, the amplifier switches between two digital output levels which are used to drive the speaker loads. This switching happens at a very high frequency, typically 200kHz to 500kHz, and the audio signal is modulated within this frequency range to create the desired output. The MAX9752BETI+ also features low distortion, high efficiency, and low noise levels. It has a power supply rejection ratio of greater than 80dB, and a wide operating temperature range of -40°C to +85°C. The MAX9752BETI+ is suitable for a wide range of applications, including consumer electronic audio products, portable media players, PA systems, and low power audio applications. It is a versatile and cost-effective solution for driving small to medium size speaker loads and headphones. The MAX9752BETI+ is an ideal audio amplifier solution for consumer electronics, audio applications, and PA systems. It features a wide input voltage range, low distortion, high efficiency, and low noise levels. Its Class D architecture provides superior power efficiency and cleaner output performance. It is a low cost and reliable solution for powering both low and medium impedance speaker loads and headphones.

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