MICRF218AYQS-TR Overview
The MICRF218AYQS-TR is a high-performance superheterodyne receiver IC designed for low-power wireless applications operating in the 315 MHz, 433.92 MHz, and 868 MHz ISM bands. It integrates a low-noise amplifier, mixer, oscillator, and a limiting amplifier, providing a compact solution for RF communication systems. This device offers excellent sensitivity and selectivity, supporting data rates up to 10 kbps, making it ideal for remote controls, alarm systems, and wireless data transmission. Its low current consumption and minimal external components reduce system complexity and enhance reliability. For more detailed technical support, visit IC Manufacturer.
MICRF218AYQS-TR Technical Specifications
| Parameter | Specification |
|---|---|
| Operating Frequency | 300 MHz to 450 MHz (typical), supports 315 MHz, 433.92 MHz, and 868 MHz bands |
| Supply Voltage (VDD) | 2.4 V to 5.5 V |
| Current Consumption (Rx mode) | 4.5 mA (typical at 3 V) |
| Data Rate | Up to 10 kbps |
| Input Sensitivity | -109 dBm at 10 kbps (typical) |
| Intermediate Frequency (IF) | 455 kHz |
| Modulation Type | ASK/OOK |
| Package Type | 16-Lead QSOP |
MICRF218AYQS-TR Key Features
- Integrated Superheterodyne Receiver: Combines LNA, mixer, oscillator, and limiting amplifier for simplified RF front-end design and improved signal quality.
- Wide Frequency Range Support: Covers common ISM bands at 315 MHz, 433.92 MHz, and 868 MHz, allowing flexible deployment in various wireless communication systems.
- Low Current Consumption: Operates efficiently at 4.5 mA, extending battery life in portable and remote devices.
- High Sensitivity: Detects weak signals down to -109 dBm, enhancing communication reliability in noisy environments.
MICRF218AYQS-TR Advantages vs Typical Alternatives
This receiver IC offers superior sensitivity and low power consumption compared to typical alternatives, enabling robust wireless communication in battery-powered systems. Its fully integrated superheterodyne architecture reduces external components, simplifying PCB layout and improving reliability. The broad frequency coverage and compatibility with ASK/OOK modulation provide design flexibility, making it a preferred choice for engineers targeting efficient and dependable RF receiver solutions.
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Typical Applications
- Remote keyless entry systems: Provides reliable and low-power reception for automotive and security access devices operating in standard ISM bands.
- Wireless alarm and security systems: Ensures accurate signal detection for intrusion and safety monitoring applications.
- Industrial remote controls: Supports robust communication in harsh environments with minimal interference.
- Low data rate wireless sensor networks: Facilitates energy-efficient data reception for sensor monitoring and control.
MICRF218AYQS-TR Brand Info
The MICRF218AYQS-TR is part of a well-established series of RF receiver ICs known for their integration and performance in low-power wireless designs. Manufactured with a focus on precision and reliability, this device aligns with industry standards for ISM band communications. It is widely adopted by engineers requiring a compact, efficient RF front-end solution with proven sensitivity and selectivity. The brand emphasizes support for industrial and automotive applications, ensuring extensive technical resources and supply chain reliability.
FAQ
What modulation schemes does the MICRF218AYQS-TR support?
The device supports amplitude shift keying (ASK) and on-off keying (OOK) modulation schemes. These are commonly used in low data rate wireless applications, providing simple and effective communication methods suitable for the supported frequency bands.
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What is the typical supply voltage range for this receiver IC?
The recommended supply voltage ranges from 2.4 V to 5.5 V, allowing compatibility with a variety of power sources, including standard battery configurations used in portable and remote devices.
How does the device’s sensitivity impact system performance?
With a typical input sensitivity of -109 dBm at 10 kbps, the receiver can detect very weak signals. This high sensitivity improves communication reliability, especially in noisy environments or where the transmitter power is limited, enhancing overall system robustness.
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What package type is available for this product?
The IC is offered in a 16-lead QSOP package, which balances compact size and ease of PCB assembly. This package type supports automated manufacturing processes and provides effective thermal performance for the device.
Can this receiver IC operate at multiple frequency bands?
Yes, it is designed to operate primarily in the 315 MHz, 433.92 MHz, and 868 MHz ISM bands. This multi-band capability makes it versatile for various wireless applications, reducing the need for multiple component variants.
