TDA7479D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The TDA7479D is a dual chip RF demodulator designed to reduce the complexity of receiver systems. It allows for the use of a single chip to demodulate FM and AM signals with high precision. The chip is capable of achieving a high degree of linearity while providing low power consumption and low noise levels. The TDA7479D is a good fit for applications that require a low cost, optimized design.

The device operates based on the fact that a radio-frequency (RF) signal is a high-frequency carrier wave that is modulated with an audio signal. The purpose of the demodulator is to remove the high-frequency carrier wave and recover the audio signal. To do this, the TDA7479D uses a combination of quadrature phase-shift keying (QPSK) and frequency-shift keying (FSK) techniques. By combining these modulation patterns, the chip is able to achieve a high level of linearity and low-noise performance.

The TDA7479D is designed to be operated at high frequencies, allowing it to be used in a wide range of applications, including AM, FM, and satellite radio. Additionally, it is well suited for other broadcast and digital radio applications, such as HD Radio, Digital Audio Broadcast (DAB), Digital Video Broadcast (DVB), and Worldwide Interoperability for Microwave Access (WiMAX) systems. It is also capable of demodulating digital signals such as Wi-Fi, WiMAX, VoIP, and digital terrestrial TV.

The TDA7479D achieves this by applying a combination of two key technologies: quadrature phase-shift keying (QPSK) and frequency-shift keying (FSK). With QPSK, the demodulator can separate two independent signals for parallel decoding. This allows for the simultaneous demodulation of both AM and FM signals. FSK is then used to further increase the efficiency by allowing for the demodulation of digital signals.

The chip is designed for flexibility, allowing for the use of both analog and digital demodulation techniques. Additionally, the chip is also capable of receiving signals over a wide frequency band, from 4.5MHz to 870MHz, making it suitable for a wide range of applications. It can also be used in harsh environments and is rated for temperatures up to 105°C.

The TDA7479D is a low-power, cost-effective, and powerful RF demodulator solution. It offers a high level of linearity and low noise levels, ensuring high-quality signal processing. It is well suited for a variety of communications and consumer electronic applications, including AM, FM, satellite radio, Wi-Fi, WiMAX, VoIP, digital terrestrial TV, and more. Its high levels of integration and flexibility make it a great choice for those who need an optimized and efficient receiver solution.

The specific data is subject to PDF, and the above content is for reference