MAX9737ETG/V+

Series:	Automotive, AEC-Q100
Packaging:	Tube
Part Status:	Obsolete
Type:	Class D
Output Type:	1-Channel (Mono)
Max Output Power x Channels @ Load:	13W x 1 @ 4 Ohm
Voltage - Supply:	8 V ~ 28 V
Features:	Depop, Mute, Short-Circuit and Thermal Protection, Shutdown
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	24-TQFN (4x4)
Package / Case:	24-WFQFN Exposed Pad
Base Part Number:	MAX9737

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MAX9737ETG/V+ Application Field and Working Principle

The MAX9737ETG/V+ is an electronics industry standard for audio amplifiers from Maxim Integrated Products. It is a low-power device designed for use in audio systems such as home stereos, automotive audio systems, portable media players, and public address (PA) systems. Its low power consumption makes it suitable for battery-powered or low-voltage applications. The device offers up to 12 dB of gain, enabling it to drive louder signals with less power.

Applications

The MAX9737ETG/V+ is ideal for applications requiring high-performance audio amplification and low power consumption. It is well suited for automotive audio, high-end home theater and stereo systems, mixed-signal multimedia platforms, portable media players, portable audio amplifiers, and other low-power, efficient audio amplification systems.

Features

The device has several features that make it an ideal solution for audio systems, including:• Low-power consumption: The device consumes just 6 mW in shutdown mode and can operate on a supply voltage ranging from 2.5 to 5.5 V.• High gain and low distortion: The MAX9737ETG/V+ offers up to 12 dB of gain and can deliver up to 95 dB of signal-to-noise ratio (SNR). It supports a signal-to-noise ratio of 100 dB and harmonic distortion of 0.025%.• High slew rate: The device has a slew rate of 350 V/µs, which ensures excellent transient response.• Connection flexibility: The device offers different input and output connection options, including differential outputs, single-ended outputs, and CML (current-mode logic) outputs.• Protection features: The device features several protection features to extend longevity, including thermal shutdown protection, over-voltage protection, under-voltage protection, and short-circuit protection.• Package options: The device offers several packages, including SOIC, VQFN, and WLCSP.

Working Principle

The MAX9737ETG/V+ is a low-power audio amplifier that is designed to amplify audio signals with minimal distortion and low power consumption. It works by using a voltage-controlled gain stage to amplify the input signal and produce an output signal with higher amplitude.At the heart of the device is the class G amplifier, which works by controlling the gain of the amplifier based on the input signal. The classG amplifier allows the device to respond quickly to changing signal levels, which reduces distortion and increases efficiency.The device uses a special feedback loop to control the gain of the amplifier and ensure a high signal-to-noise ratio (SNR) and low harmonic distortion. The device also features a slew rate of 350 V/µs, which ensures excellent transient response.In addition to the amplifier, the device also features several protection features to extend its longevity. These include an over-voltage protection circuit, an under-voltage protection circuit, and a short-circuit protection circuit.

Conclusion

The MAX9737ETG/V+ is a highly efficient low-power audio amplifier from Maxim Integrated Products. It is designed for use in audio systems such as home stereos, automotive audio systems, portable media players, and public address (PA) systems. The device offers up to 12 dB of gain and can deliver up to 95 dB of signal-to-noise ratio (SNR). It also features several protection features to extend its longevity. The device is well suited for applications requiring high-performance audio amplification and low power consumption.

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