MAX41464 Industrial, Scientific, and Medical (ISM)/Short-Range Device (SRD) Transmitter

Maxim's 300 MHz to 960 MHz frequency-shift keying (FSK) or Gaussian frequency-shift keying (GFSK) transmitter with I2C interface

Image of Maxim's MAX41464 ISM/SRD TransmitterMaxim’s MAX41464GUB+ is an ultra-high frequency (UHF) sub-GHz ISM/SRD transmitter that transmits FSK or GFSK data in a 286 MHz to 960 MHz frequency range.

This transmitter integrates a fractional phase-locked-loop (PLL) which allows a single, low-cost crystal to generate commonly used worldwide sub-GHz frequencies. The PLL has a fast response time allowing for frequency-hopping spread spectrum protocols that increase range and security. The integrated circuit (IC) features preset modes with pin-selectable frequencies so that only one wire is required for an external microcontroller (MCU) interface. The external antenna is the only frequency-dependent component needed. An 800 kHz buffered clock-out signal is also provided. This device uses the programmable mode to be programmed using an I2C interface.

The MAX41464GUB+ provides output power up to +13 dBm into a 50 Ω load while drawing less than 12 mA at 315 MHz. The output load increases power up to +16 dBm and a power amplifier (PA) boost mode is enabled at frequencies above 850 MHz to compensate for any losses. The PA output power is controlled using programmable register settings in I2C mode.

Features
  • Extended battery life with a low supply current
  • Increased range, data rates, and security
  • Low implementation cost
  • Small 3 mm x 3 mm TSSOP10 package
Applications
  • Internet of Things (IoT)
  • Tire pressure monitoring systems (TPMSs)
  • Remote/passive keyless entry (RKE/PKE)
  • Radio control toys
  • Automatic meter readings (AMRs)
  • Building automation and security
  • Wireless sensors and alarms
  • Garage door openers (GDOs)

MAX41464 ISM/SRD Transmitter

ImageManufacturer Part NumberDescriptionPart StatusFrequencyApplicationsAvailable QuantityView Details
SUB-GHZ ASK/FSK TRANSMITTERMAX41464GUB+SUB-GHZ ASK/FSK TRANSMITTERActive300MHz ~ 960MHzGeneral Purpose0View Details

MAX41464 Evaluation Kit

ImageManufacturer Part NumberDescriptionTypeFrequencyFor Use With/Related ProductsAvailable QuantityView Details
SUB-GHZ ISM FSK TRANSMITTER WITHMAX41464EVKIT-868SUB-GHZ ISM FSK TRANSMITTER WITHTransmitter868MHzMAX414643 - ImmediateView Details
Published: 2018-11-19