Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MICRF114

Status: In Production

Features:

  • Fully Integrated Low-Power Sub-GHz RF Transmitter
  • On-chip LDO
  • Programmable frequency
  • Single-Pin Crystal Oscillator with Integrated, Programmable Load Capacitor
  • Wide Operating Voltage Range: 1.8V to 3.6V
  • Industrial Temperature Range (-40°C to +85°C)
  • Low Current Consumption: 0.2 μA in Sleep Mode, 11.7 mA in +10 dBm Transmit Mode
  • Data Rate: up to 115.2 kbps NRZ, 57.6 kbps Manchester Encoded
  • On-Off Keying (OOK) Modulation with Power Ramp-up Control
  • Fast Turn-On and Turn-Off Times
  • Small Footprint 6-Pin SOT-23 Package
View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The MICRF114 is a simple, low-cost OOK transmitter with programmable output power.  It is primarily intended for command and control applications (for example, Remote Keyless Entry (RKE) and Garage Door Opener (GDO) systems, etc.).  The transmitter is synthesizer based for high-frequency accuracy.  It operates on a single frequency which is determined by the frequency of the crystal connected to the built-in reference oscillator.  This frequency can be selected from a wide range.  The more popular transmit frequencies require readily available crystal frequencies (for example, a 13.56 MHz crystal for a 433.92 MHz transmit frequency). The RF performance of the transmitter is compliant with FCC and IC regulations, and with some Japanese standards.  European (ETSI) requirements can be met at low radiated power.

The MICRF114 is optimized for battery-powered applications that feature low current consumption and can operate over a wide supply voltage range.  Internal circuits sensitive to supply voltage variations run from the on-chip Low Dropout (LDO) regulator.  In order to reduce pin count and system Bill of Materials (BOM), the LDO regulator does not need an external capacitor for stability, and the single-pin reference oscillator has a programmable, integrated crystal load capacitor.  The single-ended RF output allows easy matching to monopole antennas with a minimal number of external components.

Additional Features
    • Fully Integrated Low-Power Sub-GHz RF Transmitter
    • On-chip LDO
    • Programmable frequency
    • Single-Pin Crystal Oscillator with Integrated, Programmable Load Capacitor
    • Wide Operating Voltage Range: 1.8V to 3.6V
    • Industrial Temperature Range (-40°C to +85°C)
    • Low Current Consumption: 0.2 μA in Sleep Mode, 11.7 mA in +10 dBm Transmit Mode
    • Data Rate: up to 115.2 kbps NRZ, 57.6 kbps Manchester Encoded
    • On-Off Keying (OOK) Modulation with Power Ramp-up Control
    • Fast Turn-On and Turn-Off Times
    • Small Footprint 6-Pin SOT-23 Package
Parametrics
Name
Value
Type
Sub-GHz
Output Power (dBm)
13
Family
Sub-GHz Wireless RF Transmitter
Pin Count
6
Package
SOT23
Operating Temperature Range
-40 to 85
Rf Data Rate
115.2
Frequency Range
285-445MHz
TX Current Consumption
11.70 mA at 10 dBm
Sleep Mode Current Consumption
0.2µA

Documents

Jump to:

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MICRF114 Wireless Remote Control Development Kit - 433.92 MHz
MICRF114 Wireless Remote Control Development Kit - 433.92 MHz ( DM182017-5 )

The MICRF114 Wireless Security Remote Control Development Kit is a demonstration and development platform for wireless security remote control applications. The kit demonstrates two security protocols, KEELOQ® Classic and KEELOQ AES.  The kit contains a four-button key fob transmitter based on the MICRF114 RF transmitter, an SX1239 Receiver PICtail™ Daughter Board, and an Embedded...

Learn More
Add To Cart

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MICRF114T-I/OT
0.016450
0.046667
6
SOT-23
-
NiPdAu
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.

Buy from the Microchip Store

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy