MAX4738EUD+T

Introduction

The MAX4738EUD+T is a dual, TTL and X signal compatible, audio multiplexer that supports high-bandwidth digital audio. This multiplexer provides simultaneous access to any two of four audio sources. Each input signal is routed through independent signal paths, fully ensuring independence and preventing crosstalk. Additionally, the signal-to-noise ratio is ensured through ground-based signal path and a CMOS process. This high-performance part also features a low power consumption design while providing excellent RFI and EMI performance.

The MAX4738EUD+T is suited for a variety of applications that need to switch, multiplex, and demultiplex both analog and digital audio signals. It is a perfect fit for any sound mixing and sound synthesis applications that require audio switching at high bandwidth and low noise. Additionally, the MAX4738EUD+T provides a interface between digital and analog audio sources.

Application Fields

One field in which the MAX4738EUD+T is highly suited is studio/live sound mixing applications. In today’s studios, the need for multiple sources to be mixed into one signal is essential. This device allows anyone to switch and crossover digital and analog sources in order to create complex mixes with low SNR. Additionally, the low power consumption of this IC combines with the excellent RFI and EMI performance to create an optimal environment for the user.

The MAX4738EUD+T can also be used in any audio synthesizer or processor. The switching capability allows the user to quickly and easily switch between multiple audio sources and synthesize the desired sound. This capability allows engineers to quickly test and monitor different audio synthesis and switching configurations, ensuring the aspired sound is produced. This makes the IC perfect for applications such as musical keyboards, where sound switching and switching ratio must remain constant and accurate.

The MAX4738EUD+T is also used heavily in automotive applications. The ability to switch between multiple audio sources allows for on-the-fly sound switching between CD and AM/FM radio signals. This ensures uninterrupted sound for the driver and passengers and eliminates the need for manual switching of sources. By using low power consumption and excellent RFI and EMI performance, the MAX4738EUD+T is the perfect device for automotive applications.

Working Principle

The MAX4738EUD+T works based on stored audio data. When the device is first powered up, the audio data is stored in a non-volatile manner for when specific inputs are desired. When a signal is routed to a certain audio source, the stored audio data is then processed through the switch circuitry and then output to the desired destination. This method of operation ensures that no matter what source is being switched, the SNR and audio performance remain consistent.

The MAX4738EUD+T also features hot-swap and latchup protection. This ensures that when switching between multiple audio sources, any sudden spikes or drops in audio signals can be neutralized and no electrical damage occurs. This protection ensures long lasting performance and accuracy in sound switching applications.

Conclusion

The MAX4738EUD+T is a dual, TTL and X signal-compatible audio multiplexer that provides flexibility and excellent performance. It is ideally suited for studio / live sound mixing, audio synthesizing and processing, and automotive applications. Through its low power consumption and hot-swap protection, the MAX4738EUD+T is an ideal device for audio signal switching and multiplexing.