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MICRF112

Status: In Production

Features:

  • Complete UHF transmitter
  • Frequency range 300MHz to 450MHz
  • Data rates up to 50kbps ASK, 10kbps FSK
  • Output Power to 10dBm
  • Low external part count
  • Low standby current <1µA
  • Low voltage operation (down to 1.8V)
  • Operate with crystals or ceramic resonators
  • Small form factor: 10-pin MSOP (3 x 4.9mm) and 10-pin Ultra-Thin DFN (2 x 2 x 0.4mm)
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Overview
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Development Environment
RoHS Information
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Device Overview

Summary

The MICRF112 is a high performance, easy to use, single chip ASK / FSK Transmitter IC for remote wireless applications in the 300 to 450MHz frequency band.  This transmitter IC is a true "data-in, antenna-out" monolithic device. 

MICRF112 is high performance in three areas: power delivery, operating voltage, and operating temperature.  In terms of power, the MICRF112 is capable of delivering +10 dBm into a 50Ω load.  This power level enables a small form factor transmitter (lossy antenna) such as a key fob transmitter to operate near the maximum limit of transmission regulations.  In terms of operating voltage, the MICRF112 operates from 3.6V to 1.8V.  Many transmitter ICs in the same frequency band stop operating below 2.0V.  The MICRF112 will work with most batteries to the end of their useful limits.  In terms of operating temperature, the MICRF112 operates from -40°C to +125°C.  This wide operating temperature range makes MICRF112 an ideal candidate for the demanding applications such as a tire pressure monitoring system.

The MICRF112 is easy to use.  One only needs a reference frequency (RF carrier frequency divided by 32 times) generated from a crystal with a few additional external parts to create a complete versatile transmitter. 

The MICRF112 operates with ASK/OOK (Amplitude Shift Keying/On-Off Keyed) UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance super-heterodyne receivers.  The MICRF112's maximum ASK data rate is 50kbps (Manchester Encoding).  It operates with FSK receivers as well.  The chip is designed to support narrow band FSK (Frequency Shift Modulation) by switching an external capacitor in parallel with the reference crystal.  The MICRF112's maximum FSK data rate is 10kbps.

Additional Features
    • Complete UHF transmitter
    • Frequency range 300MHz to 450MHz
    • Data rates up to 50kbps ASK, 10kbps FSK
    • Output Power to 10dBm
    • Low external part count
    • Low standby current <1µA
    • Low voltage operation (down to 1.8V)
    • Operate with crystals or ceramic resonators
    • Small form factor: 10-pin MSOP (3 x 4.9mm) and 10-pin Ultra-Thin DFN (2 x 2 x 0.4mm)
    Parametrics
    Name
    Value
    Type
    ASK/FSK Transmitter
    Power Output (dBm)
    10.00
    Pin Count
    10
    Packages
    MSOP, DFN
    RF Transmitter
    Yes
    Operating Temperature
    -40C to +125C
    RF Data Rate (Kbps)
    50
    Frequency Range
    300MHz-450MHz
    Standby Current (µA)
    1.00
    Tx Power Consumption (mA)
    11.50

    Documents

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    Data Sheets

      
    851KB

    Supporting Collateral

    Board Design Files

    Brochures

      
    4078KB

    Certifications


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    RoHS Information

    Part Number
    Device Weight (g)
    Shipping Weight (Kg)
    Lead Count
    Package Type
    Package Width
    Solder Composition
    JEDEC Indicator
    RoHS
    China EFUP
    MICRF112YMM
    0.024500
    0.135600
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MICRF112YMM-TR
    0.024500
    0.431180
    10
    MSOP
    3x3x1.0mm
    NiPdAu
    e4
    MICRF112YMU-TR
    N/A
    0.711789
    10
    X2DFN
    2x2x0.4mm
    Au Flash
    e4
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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