RF receivers are IC (integrated circuit) components which provide detection of RF (radio frequency) signals. RF receivers are designed to receive radio signals from other devices. These ICs embedded in PCB modules to provide wireless communications. RF receivers receive data in frequency given in MHz, for example, 440MHz. Unlike IR communication, this cannot be interrupted. RF receivers also operate on particular voltage ranges, for example, 4.5 to 5.5 V. It is important
What is modulation? Modulation is a process which prevents loss of the information transmitted by the frequency. When a signal is modulated, it combines the RF signal with higher-frequency wavelength.
What is the ISM band? ISM (industrial, scientific and medical) bands are radio bands reserved for ISM purposes. There are processes used in ISM which can interfere with RF communications. There are different types of modulation available in RF receivers, such as: ASK - Amplitude-Shift Keying FSK - Frequency-Shift Keying GFSK - Gaussian Frequency-Shift Keying OOK - On-Off Keying PSK - Phase-Shift Keying QAM - Quadrature Amplitude Modulation
Applications for RF Receivers: Communications Remote controls Car alarm systems Automation Security and CCTV Keyless entry systems RF Receiver ICs come in various packages such as: QFN QSOP SOIC TSSOP