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Microchip Technology MICRF221AYQSTR RFID and Remote Control Receiver
The MICRF221 is a third-generation superheterodyne RFID and low-power remote control receiver operating between 850 MHz to 950 MHz. It offers high sensitivity at -109dBm, integrated image rejection mixers, and flexible bandwidth options from 1.25 kHz to 10 kHz. Its features include automatic duty-cycle operation, RSSI output, and programmable thresholds for enhanced selectivity. Designed for minimal external components, it supports low current consumption for battery-powered applications like RKE and RFID, with advanced serial programming to optimize performance across various data rates and modulation formats.
Microchip Technology MICRF221AYQSTR RFID and Remote Control Receiver Specifications:
- Frequency Range: 850 MHz to 950 MHz
- Sensitivity: -109 dBm at 1 kbps, BER 10E-02
- Image Rejection: 20 dB
- IF Center Frequency: 1.285 MHz
- IF Bandwidth: 360 kHz at 868 MHz, 380 kHz at 915 MHz
- Power Supply Voltage: 3.3 V
- Supply Current: 9-9.5 mA
- Operating Temperature: -40°C to +105°C
- Reference Oscillator Frequency: 14.27643 MHz for 915 MHz
- Input Impedance: 9.0 - j67.4Ω at 915 MHz
- Demodulator Bandwidth: 1625Hz to 13000Hz adjustable
- External Components: Crystal (10pF load), decoupling capacitor, matching network
- Package: QSOP16
- Serial Programming: Yes, via serial interface for register configuration
Buy the Micrel Series RF Receiver: MICRF221
Experience the high-performance capability of the MICRF221 RFID and remote control receiver. Operating in the 850-950 MHz range, it features -109dBm sensitivity, integrated image rejection mixers, and adjustable bandwidth from 1.25 kHz to 10 kHz. Its low current consumption of about 9-9.5 mA makes it ideal for battery-powered devices like RKE and RFID tags. The device supports serial programming for easy customization, requiring minimal external components, and is suitable for compact, high-reliability wireless applications.
Get Micrel MICRF221 today—built for precision, ultra-low power RFID and remote control applications.
Frequently Asked Questions
Where can I buy Microchip Technology MICRF221AYQSTR?
You can click on the BUY or RFQ button to purchase MICRF221AYQSTR from an authorized Microchip Technology distributor.
How do I troubleshoot issues or seek technical support for part MICRF221AYQSTR?
You can download the MICRF221AYQSTR datasheet or visit the Microchip Technology website for support.
Who is the manufacturer of MICRF221AYQSTR?
Microchip Technology