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. 911-2834
Mfr. Part No.MICRF220AYQS
BrandMicrochip
R 57.70
Each (In a Pack of 2)
units
ASK, OOK Surface Mount QSOP 16 4.9 x 3.91 x 1.47mm 4.9mm 3.91mm 1.47mm 13kHz - - 3.6 V +105 °C 1625Hz
RS stock no. 159-7556
Mfr. Part No.MICRF220AYQS
BrandMicrochip
R 27.121
Each (In a Tube of 98)
units
ASK, OOK Surface Mount QSOP 16 4.9 x 3.91 x 1.47mm 4.9mm 3.91mm 1.47mm 13kHz - - 3.6 V +105 °C 1625Hz
RS stock no. 177-0806
Mfr. Part No.MICRF011YM
BrandMicrochip
R 34.426
Each (In a Pack of 5)
units
OOK Through Hole SOIC 14 - - - - 440MHz - - - +85 °C 300MHz
RS stock no. 177-0481
Mfr. Part No.MICRF007YM
BrandMicrochip
R 34.236
Each (In a Tube of 95)
units
ASK, OOK Surface Mount SOIC 8 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 440MHz - - 5.5 V +85 °C 300MHz
RS stock no. 177-0792
Mfr. Part No.MICRF007YM
BrandMicrochip
R 37.13
Each (In a Pack of 5)
units
ASK, OOK Surface Mount SOIC 8 5 x 3.99 x 1.63mm 5mm 3.99mm 1.63mm 440MHz - - 5.5 V +85 °C 300MHz
RS stock no. 177-0835
Mfr. Part No.MICRF211AYQS
BrandMicrochip
R 36.738
Each (In a Pack of 5)
units
ASK, OOK Surface Mount QSOP 16 4.9 x 3.91 x 1.47mm 4.9mm 3.91mm 1.47mm 450MHz - - 3.6 V +105 °C 380MHz
RS stock no. 177-0482
Mfr. Part No.MICRF011YM
BrandMicrochip
R 31.75
Each (In a Tube of 54)
units
OOK Through Hole SOIC 14 - - - - 440MHz - - - +85 °C 300MHz
RS stock no. 177-0484
Mfr. Part No.MICRF211AYQS
BrandMicrochip
R 33.67
Each (In a Tube of 98)
units
ASK, OOK Surface Mount QSOP 16 4.9 x 3.91 x 1.47mm 4.9mm 3.91mm 1.47mm 450MHz - - 3.6 V +105 °C 380MHz