RF Receivers

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

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Description Price Modulation Technique Mounting Type Package Type Pin Count Dimensions Length Width Height Maximum Operating Band 1 Frequency Maximum Operating Band 2 Frequency Maximum Operating Band 3 Frequency Maximum Operating Supply Voltage Maximum Operating Temperature Minimum Operating Band 1 Frequency
RS Stock No. 819-6887
Mfr. Part No.Si4356-B1A-FM
£1.186
Each (In a Pack of 5)
Units
GFSK, OOK Surface Mount QFN 20 3 x 3 x 0.85mm 3mm 3mm 0.85mm 917MHz - - 3.6 V +85 °C 315MHz
RS Stock No. 169-0027
Mfr. Part No.SI4356-B1A-FM
£1.078
Each (In a Tray of 490)
Units
GFSK, OOK Surface Mount QFN 20 3 x 3 x 0.85mm 3mm 3mm 0.85mm 917MHz - - 3.6 V +85 °C 315MHz
RS Stock No. 173-2729
Mfr. Part No.SI4355-B1A-FM
£1.049
Each (In a Tray of 490)
Units
GFSK, OOK Surface Mount QFN 20 3 x 3 x 0.85mm 3mm 3mm 0.85mm 350MHz 525MHz 960MHz 3.6 V +85 °C 283MHz
RS Stock No. 769-8679
Mfr. Part No.Si4355-B1A-FM
£1.013
Each (In a Pack of 3)
Units
GFSK, OOK Surface Mount QFN 20 3 x 3 x 0.85mm 3mm 3mm 0.85mm 350MHz 525MHz 960MHz 3.6 V +85 °C 283MHz
RS Stock No. 819-6913
Mfr. Part No.Si4362-B1B-FM
£1.252
Each (In a Pack of 5)
Units
4GFSK, ASK, GFSK, GMSK, OOK Surface Mount QFN 20 4 x 4 x 0.85mm 4mm 4mm 0.85mm 1050MHz 1050MHz 1050MHz 3.6 V +85 °C 142MHz
RS Stock No. 169-0033
Mfr. Part No.SI4362-B1B-FM
£1.275
Each (In a Tray of 490)
Units
4GFSK, ASK, GFSK, GMSK, OOK Surface Mount QFN 20 4 x 4 x 0.85mm 4mm 4mm 0.85mm 1050MHz 1050MHz 1050MHz 3.6 V +85 °C 142MHz