MICRF221AYQS Overview
The MICRF221AYQS is a highly integrated, low-power ASK/OOK superheterodyne receiver designed for wireless data communication in the 300 MHz to 450 MHz frequency range. It delivers exceptional sensitivity and selectivity, making it ideal for robust remote control, security, and sensor applications. The device operates with minimal external components, simplifying system design and reducing overall costs. Its low current consumption supports battery-powered applications, enhancing operational longevity. This compact and reliable receiver is a preferred choice for engineers seeking efficient wireless solutions. For more detailed product insights, visit IC Manufacturer.
MICRF221AYQS Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Frequency Range | 300 to 450 | MHz |
| Sensitivity (at 10^-3 BER) | -114 | dBm |
| Current Consumption (Receiver Mode) | 2.0 | mA |
| Supply Voltage Range | 2.1 to 3.6 | V |
| Data Rate | Up to 10 | kbps |
| Modulation Type | ASK / OOK | ?C |
| Output Type | Digital Data Output | ?C |
| Package Type | QSOP-16 | ?C |
MICRF221AYQS Key Features
- High Sensitivity: Enables reliable data reception even at very low signal levels, enhancing communication range and robustness.
- Wide Frequency Range: Supports operations between 300 MHz and 450 MHz, providing flexibility for various ISM band applications.
- Low Power Consumption: Consumes only 2 mA in receive mode, making it ideal for battery-operated wireless devices where energy efficiency is critical.
- Integrated Superheterodyne Architecture: Offers superior selectivity and interference rejection compared to simple superregenerative or direct conversion receivers.
- Minimal External Components: Reduces PCB complexity and cost, accelerating time-to-market for wireless system designs.
MICRF221AYQS Advantages vs Typical Alternatives
This device offers superior sensitivity and selectivity through its superheterodyne design, outperforming many basic ASK/OOK receivers that rely on simpler architectures. Its low current consumption extends battery life, a critical factor for portable and remote applications. The wide frequency support and minimal external parts simplify integration and reduce overall solution cost, making it a reliable and efficient choice over typical alternatives.
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Typical Applications
- Wireless Remote Controls: Utilized in garage door openers and keyless entry systems where robust, low-power reception at sub-GHz frequencies is essential for reliable operation over distance.
- Security Systems: Employed in wireless alarm sensors and motion detectors requiring sensitive and accurate signal processing to minimize false alarms.
- Industrial Automation: Suitable for wireless sensor networks and control units that benefit from low power and high interference immunity in noisy environments.
- Home Automation: Supports applications such as wireless lighting controls and smart appliances, providing dependable data reception with minimal power usage.
MICRF221AYQS Brand Info
The MICRF221AYQS is a product developed by Microchip Technology, a global leader in microcontroller, analog, and Flash-IP solutions. Known for delivering high-quality and innovative semiconductor components, Microchip offers this ASK/OOK superheterodyne receiver to meet the demands of wireless communication applications. The product exemplifies Microchip??s commitment to combining performance with ease of integration, enabling engineers to develop efficient low-power wireless devices with confidence.
FAQ
What modulation schemes does the MICRF221AYQS support?
This receiver supports Amplitude Shift Keying (ASK) and On-Off Keying (OOK) modulation schemes, commonly used in low data-rate wireless communication systems. These modulation types are simple and effective for remote control and wireless sensor applications.
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What is the typical current consumption during operation?
The device typically consumes around 2.0 mA in receive mode, which allows it to be used in battery-powered applications where power efficiency is crucial. This low power consumption contributes to longer device operational life between battery replacements.
Can the device operate outside the 300 to 450 MHz range?
No, the MICRF221AYQS is designed specifically to operate within the 300 MHz to 450 MHz frequency range. Operating outside this range is not recommended as it may degrade performance or cause the device to malfunction.
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How does the superheterodyne architecture benefit wireless communication?
The superheterodyne design enhances selectivity and sensitivity by converting the received signal to an intermediate frequency, which allows better filtering and amplification. This approach reduces interference and improves signal quality compared to simpler receiver architectures.
What package type is available for this component?
The receiver is available in a QSOP-16 package, which provides a compact footprint suitable for space-constrained applications while allowing convenient PCB assembly and thermal management.
