描述 Description

The MICRF219A is a 300MHz to 450MHz super-heterodyne, image-reject, RF receiver with automatic gain control, ASK/OOK demodulator, analog RSSI output, and integrated squelch features.? It only requires a crystal and a minimum number of external components to implement.? The MICRF219A is ideal for low-cost, low-power, RKE, TPMS, and remote actuation applications.The MICRF219A achieves -110dBm sensitivity at a bit rate of 1kbps with 0.1% BER.? Four demodulator filter bandwidths are selectable in binary steps from 1625Hz to 13kHz at 433.92MHz, allowing the device to support bit rates up to 20kbps.The device operates from a supply voltage of 3.0V to 3.6V, and typically consumes 4.3mA of supply current at 315MHz and 6.0mA at 433.92MHz.? A shutdown mode reduces supply current to 0.1μA typical.? The squelch feature decreases the activity on the data output pin until valid bits are detected while maintaining overall receiver sensitivity.

簡介

MICRF219A屬于開發(fā)板套件編程器的射頻評估開發(fā)套件開發(fā)板。由制造生產(chǎn)的MICRF219A射頻評估和開發(fā)套件，開發(fā)板本系列中的產(chǎn)品適用于在已知實施環(huán)境中，提供能訪問射頻相關(guān)器件的功能或者有助于訪問該功能。所含的焦點(diǎn)產(chǎn)品范圍從射頻信號鏈元器件（如放大器和檢測器）到模塊化收發(fā)器，以及不直接包含焦點(diǎn)產(chǎn)品的適配器硬件，但此類硬件可供方便地訪問用戶單獨(dú)提供的特定射頻產(chǎn)品或系列。