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MICRF112 Datasheet(PDF) 1 Page - Microchip Technology |
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MICRF112 Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 46 page  Data Sheet © 2024 Microchip Technology Inc. and its subsidiaries DS70005554A - 1 Introduction The MICRF112 is a high-performance, easy-to-use, true “Data-In, RF-Out”, ASK/FSK, Phase-Locked Loop (PLL)- based, transmitter IC for applications in the 300 MHz to 450 MHz frequency range. These applications include Remote Keyless Entry (RKE) and a Tire Pressure Monitoring System (TPMS). The device needs only a low-cost crystal to precisely set the desired RF frequency and a few external components for matching the power amplifier output to the antenna. The MICRF112 operates over the 1.8V to 3.6V operating range and delivers +10 dBm (CW) output power into a 50Ω load, while consuming 11.5 mA of supply current from a 3.0V power supply. In ASK mode, the device consumes 6.9 mA of supply current at a data rate of 1 kbps (Manchester 50%). It features a low-power shutdown mode where the device typically consumes 50 nA of supply current. This makes it an ideal solution for battery-powered applications. The MICRF112 is rated for the -40°C to +125°C temperature range and is available in 10-pin MSOP and 10-pin Ultra-Thin DFN packages. For automotive applications where the AEC-Q100 qualification is required, consider the MAQRF112. For ASK only applications that do not require shutdown, consider the MICRF113 in SOT23-6. Features • 1.8V to 3.6V Supply Voltage Range • Up to +10 dBm Output Power (CW) • 6.9 mA Supply Current at 1 kbps ASK (50% Manchester) • 11.5 mA Supply Current at +10 dBm (FSK/CW) • 1 µA Shutdown Supply Current • Data Rates Up to 50 kbps ASK, 10 kbps FSK • Crystal or Ceramic Resonators Sets RF Frequency • -40°C to +125°C Temperature Range • 10-Pin MSOP (3.0 mm x 4.9 mm), 10-Pin Ultra-Thin DFN (2 mm x 2 mm x 0.5 mm) Applications • Remote Keyless Entry systems (RKE) • Remote control (STB, HVAC and appliances) • Garage Door Openers (GDO) • Tire Pressure Monitor Systems (TPMS) • Outdoor weather stations • Security/alarms systems • Lighting and fan remote controls • Doorbells • Irrigation control MICRF112 Data Sheet MICRF112 |
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