CYWUSB6935-28SEI

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The CYWUSB6935-28SEI is a highly versatile RF transceiver IC used in a wide range of applications, ranging from commercial applications to military applications. The most common applications involving this IC are in wireless communications, wireless data collection systems, satellite communications, local area networks, and voice communication systems. This IC includes an in-phase and a quadrature modulated spread spectrum radio transceiver, which is a technology developed by Symbol Technologies.

The CYWUSB6935-28SEI is designed with an on-chip direct conversion radio transceiver including a bandpass filter that eliminates adjacent channel interference and an adaptive equalizer for controlling adjacent channel crosstalk. It contains an internal synthesizer with a 2.4 GHz carrier frequency that can be programmed to any of the thirteen operating channels defined in the IEEE 802.11b standard. The data rate is adjustable up to 11 mbps and it supports both FHSS (Frequency Hopping Spread Spectrum) and DSSS (Direct Sequence Spread Spectrum) modes of operation.

The CYWUSB6935-28SEI is designed to provide a low-power, cost-effective solution for wireless communication applications. It is capable of operating in both FHSS and DSSS modes with a high degree of flexibility. The wide frequency range of 2.4 GHz to 5.3 GHz makes it ideal for applications that require the transmission of relatively large amounts of data over a short distance without the need for costly infrastructure.

The working principle of the IC is based on a direct conversion radio transceiver that uses a spread spectrum technique for transmission. The spread spectrum technique divides the frequency spectrum into many small subcarriers, allowing for a wider range of frequencies to be used for data transmission. These frequencies are selected from the IEEE 802.11b frequency band. The CYWUSB6935-28SEI then modulates the data onto these subcarriers and transmits them, allowing the transmitted signal to hop from one frequency to another in order to avoid detection.

The CYWUSB6935-28SEI is designed to accept digital data from a host microcontroller and convert it to a radio signal for transmission. The signal is then received by the destination device and converted back to digital data. The IC also uses an on-chip chip antenna and a low noise amplifier (LNA) for optimized performance in noisy environments, such as those found in industrial settings.

The combination of a low-power, cost-effective radio transceiver IC and a spread spectrum technique for data transmission has made the CYWUSB6935-28SEI an attractive solution for a variety of applications. It has been widely used in wireless communication systems, wireless data collection systems, satellite communications, local area networks, and voice communication systems. This IC is also ideal for applications that require the transmission of large amounts of data over a short distance without the need for costly infrastructure. It is an economical and reliable solution for wireless data transmission.

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