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RF Receivers

The SI4756-A10-GMR is an RF receiver designed to provide a wide selection of features and configurations while conforming to established industry standards. It is an ideal choice for applications requiring multiple types of modulations, frequency hops, and modulation bandwidths.

This extremely low-power receiver consumes minimal current under both idle and active conditions. Typical active current consumption is typically 18 mA at 3.3 volts, and its standby current consumption is only 1 µA.

Application Field

The SI4756-A10-GMR receiver was designed for use in a wide range of applications, the most common of which are radio links used in audio-video systems, remote control systems, and automotive systems. These applications require extremely low power, high sensitivity, and excellent immunity from noise and interference.

The device is also suitable for use in home-entertainment products, such as televisions and set-top boxes, and in radio-frequency identification (RFID) applications. In addition, the device is suitable for use in industrial applications, such as industrial monitoring systems, and in consumer products, such as remote-controlled toys and toys with built-in radio receivers.

Working Principle

The SI4756-A10-GMR receiver is a monolithic integrated circuit that incorporates discrete components by integrating the basic RF signals into one, providing users with a low-cost, high-performance solution. The device operates within the 9 - 868 MHz frequency range, with a typical channel bandwidth of 250 kHz.

The receiver uses a low-IF architecture, meaning that it processes the signal before it is down-converted to baseband. It provides its best performance when used with a low-noise amplifier (LNA). When working together, the LNA and the receiver work together to reduce interference from external sources, which allows for improved sensitivity.

The receiver can be configured for frequency hopping and spread spectrum communications, and it has the capability of communications up to three simultaneous channels in both FM and GFSK modulation. The device is also equipped with a low-noise amplifier, a baseband filter, and a demodulator. It is controlled via a 3-wire serial interface and provides a variety of features, including an adjustable receiver gain, a programmable noise-cancellation filter, and a frequency hopping mode.

In summary, the SI4756-A10-GMR receiver is an ideal choice for applications requiring multiple modulation types and frequencies, low power consumption, and superior performance in noisy and interference-prone environments.

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