MICRF104BM Overview
The MICRF104BM is a highly integrated, low-power ASK/OOK superheterodyne receiver designed for wireless remote control and security system applications. Operating in the sub-GHz frequency bands, it simplifies RF front-end design by combining a low-noise amplifier, mixer, oscillator, and demodulator in a compact package. Its sensitivity and selectivity make it suitable for reliable data reception in noisy environments. Featuring minimal external components, this device enables efficient and cost-effective RF receiver solutions. For more detailed information, visit IC Manufacturer.
MICRF104BM Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Frequency Range | 300 MHz to 450 MHz |
| Supply Voltage | 2.4 V to 3.6 V |
| Current Consumption | 3.5 mA (typical) |
| Receiver Sensitivity | -112 dBm at 1.2 kbps |
| Data Rate | 1.2 kbps (typical) |
| Modulation Type | ASK/OOK |
| Intermediate Frequency (IF) | 10.7 MHz |
| Package Type | 8-pin SOIC |
MICRF104BM Key Features
- Integrated Superheterodyne Receiver: Combines LNA, mixer, IF amplifier, and demodulator to reduce external component count, simplifying wireless design.
- High Sensitivity: Enables detection of weak RF signals down to -112 dBm, ensuring reliable communication in challenging environments.
- Low Power Consumption: Operates at just 3.5 mA typical current, extending battery life in remote and portable applications.
- Wide Frequency Range: Supports 300 MHz to 450 MHz operation, allowing flexible deployment across various sub-GHz ISM and licensed bands.
MICRF104BM Advantages vs Typical Alternatives
This receiver module offers superior sensitivity and low power consumption compared to typical ASK/OOK receivers, enabling longer range and increased battery life. Its integrated superheterodyne architecture provides enhanced selectivity and reduced interference, improving signal accuracy. The minimal external component requirement reduces overall system cost and design complexity, making it a reliable and efficient solution for industrial and security wireless systems.
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Typical Applications
- Wireless security alarms and remote keyless entry systems, benefiting from high sensitivity and low power to maintain secure and long-range communication.
- Industrial remote controls, where reliable data reception is critical in electrically noisy environments.
- Home automation devices requiring compact, low-power RF receivers for sensor data acquisition and control signals.
- Garage door openers and other consumer remote control products, utilizing the device??s compatibility with standard ASK/OOK modulation schemes.
MICRF104BM Brand Info
The MICRF104BM is offered by a reputable semiconductor manufacturer specializing in RF integrated circuits for industrial and consumer applications. This product line is known for combining high performance with cost-effective design, targeting OEMs and system integrators requiring compact and reliable wireless receiver solutions. The device??s robust design and comprehensive datasheet support ensure straightforward integration into various RF systems.
FAQ
What modulation schemes does the MICRF104BM support?
The device supports amplitude shift keying (ASK) and on-off keying (OOK) modulation types, which are common for simple wireless data transmission. This makes it compatible with many remote control and security system protocols.
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What is the typical power consumption of the MICRF104BM during operation?
The typical current consumption is approximately 3.5 mA at a supply voltage between 2.4 V and 3.6 V. This low power draw is suitable for battery-powered applications requiring extended operational life.
What frequency range does the MICRF104BM cover?
This receiver operates in the 300 MHz to 450 MHz frequency band, covering common sub-GHz ISM bands, which are widely used for industrial, scientific, and medical wireless applications.
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How does the MICRF104BM improve receiver sensitivity compared to direct conversion designs?
The integrated superheterodyne architecture includes a low-noise amplifier and an intermediate frequency stage at 10.7 MHz, which together enhance signal selectivity and sensitivity. This approach reduces noise and interference better than direct conversion receivers.
What package type is the MICRF104BM available in, and what are the implications for PCB design?
The device is supplied in an 8-pin small outline integrated circuit (SOIC) package. This compact surface-mount design allows for space-saving PCB layouts and easy assembly with standard SMT processes, facilitating integration into compact wireless modules.
