Computer Controls

Maxim Integrated officially released MAX41463

Maxim Integrated officially released for mass production MAX41463 product – UHF sub-GHz ISM/SRD transmitter designed to transmit FSK/GFSK/2GFSK data in the 286MHz to 960MHz frequency range. MAX41463 integrates a fractional PLL, so that a single, low-cost crystal can be used to generate commonly used world-wide sub-GHz frequencies. Due to the fast response time of the PLL it allows for frequency-hopping spread spectrum protocols for increased range and security. MAX41463 supports preset modes with pin-selectable frequencies and programmable mode via I2C-interface. The only frequency-dependent components required are for the external antenna-matching network. The crystal-based architecture of the MAX41463 eliminates many of the common problems with SAW-based transmitters by providing greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence.

MAX41463 provides output power up to +13dBm into a 50Ω load while drawing < 12mA at 315MHz. The output load can be adjusted to increase power up to +16dBm, and a PA boost mode can be enabled at frequencies above 850MHz to compensate for losses. The PA output power can also be controlled via I2C interface. MAX41463 supports operation from single-supply voltage from +1.8V to 3.6V, has auto-shutdown feature and fast oscillator wake-up with data activity detection.

It is available in a 10-pin TSSOP package and is specified over the −40℃ to +105℃ extended temperature range.
MAX41463 is a member of MAX4146x family of UHF sub-GHz ISM/SRD transmitters.

See in a table below all options available:


Modulation and Interface

Preset Frequencies

 MAX41460 ASK/FSK with SPI No presets, programmable through SPI
 MAX41461 ASK (optional I2C) 315/318/319.51/345/433.42/433.92/908/915 [MHz]
 MAX41462 ASK (optional I2C) 315/433/433.92/434/868/868.3/868.35/868.5 [MHz]
 MAX41463 ASK (optional I2C) 315/433.42/433.92/908/908.42/908.8/915/916 [MHz]
 MAX41464 ASK (optional I2C) 315/433.92/868.3/868.35/868.42/868.5/868.95/869.85 [MHz]


Typical applications for MAX41463 product are following:
-    Wireless Sensors and Alarms
-    Tire Pressure Monitoring Systems (TPMS)
-    Remote and Passive Keyless Entry (RKE/PKE)
-    Radio Control Toys
-    Internet of Things (IoT)
-    Garage Door Openers (GDO)
-    Building Automation and Security
-    Automatic Meter Reading (AMR).


Download datasheet

Download documentation

Please use the form or call +41 44 308 66 66 for more information: