SI4734-C40-GMR

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The SI4734-C40-GMR is a highly integrated Radio Frequency (RF) receiver used in various commercial, industrial, and portable applications. Its unique features and capabilities make it suitable for a wide range of applications, including cellular networks, cordless phones, wireless data transceivers, radio navigation, test & measurement equipment, and many more.

Overview of SI4734-C40-GMR

The SI4734-C40-GMR is an integrated RF receiver designed for low-cost, low-power, and wide frequency range operation. It provides two receiver modes – “Power Save” and "Long Range" – that enable efficient power management and maximize receiver performance. The "Long Range" mode features enhanced sensitivity and selectivity, enabling the receiver to effectively receive signals in a wide frequency range and in less than ideal radio environments. The device also supports the high-speed random-access memory interface (RAMI), which simplifies the integration of external RF components and allows for flexible system designs.

The SI4734-C40-GMR features programmable IF and baseband filters for improved image and adjacent-channel rejection. It also includes an embedded programmable synthesizer, which enables easy tuning of the receiver bandwidth. In addition, the device offers superior thermal stability and low-power operation, allowing it to operate in harsh environments without any performance degradation. Furthermore, it is designed to meet stringent EMC requirements of ISO 9001 and CPR 9100 standards.

Application Fields

The SI4734-C40-GMR is a versatile receiver well suited for a variety of applications, such as cellular networks, cordless phones, wireless data transceivers, radio navigation, test & measurement equipment, FM/AM radio, and many more. It can also be used in automotive, consumer, and industrial applications, such as WiFi, Bluetooth, ZigBee, 802.11b/g/n, GSM/GPRS/EDGE, HSDPA, WCDMA, and LTE.

Working Principle

The SI4734-C40-GMR utilizes direct-conversion technology, which allows the receiver to directly convert an RF signal to a baseband signal. It works by first capturing the incoming RF signal, then amplifying and filtering it. The signal is then fed into a local oscillator, which is used to produce a local oscillating signal at the desired frequency. The local oscillating signal is then combined with the incoming RF signal and mixed down to the baseband frequency, which is then amplified and filtered. The resulting signal is then output to the output terminals.

The device also includes on-chip programmable synthesizers, which enable the tuning of the receiver bandwidths to the frequency of the desired signal. The programmable synthesizers can be programmed to specific frequencies, which ensure that the desired frequencies are received without interference from other frequencies. Additionally, the device also includes power-management features, such as low-power operating modes and the ability to switch off the receiver circuit when idle, which maximizes battery life.

Conclusion

The SI4734-C40-GMR is an ideal receiver for use in a variety of applications and for use in harsh environment conditions. Its wide frequency range, low-power operation, and programmable filters make it ideal for use in cellular networks, cordless phones, wireless data transceivers, radio navigation, test & measurement equipment, and many more. Additionally, its low cost and thermal stability ensures its reliability in a wide range of environments.

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