MAX41461

PRODUCTION

300MHz–960MHz ASK Transmitter with I2C Interface

High Output Power for Long Range, with Low Current Consumption - Fully Programmable at a Low Implementation Cost

Data Sheet (Rev. 1)
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Overview

  • Low Implementation Cost
    • Bits-to-RF Single Wire Operation
    • Low Bill-of-Materials (BOM)
    • Uses Single, Low-Cost, 16MHz Crystal
    • Small 3mm x 3mm μMAX-10 Package
  • Increased Range, Data Rates, and Security
    • Up to +16dBm PA Output Power
    • Fast Frequency Switching for FHSS/DSSS
    • Fast-On Oscillator: < 250μs Startup Time
    • Up to 200kbps NRZ Data Rate
  • Extend Battery Life with Low Supply Current
    • < 8mA ASK Manchester Coded
    • Selectable Standby and Shutdown Modes
    • Auto Shutdown at < 20nA (typ) Current
  • Ease of Use
    • Pin Selectable 300MHz–928MHz Frequencies
    • Pin Compatible ASK and FSK Versions
    • +1.8V to +3.6V Single-Supply Operation
    • Fully Programmable with 400kHz/1MHz I2C Interface

The MAX41461/MAX41462 is a UHF sub-GHz ISM/SRD transmitter is designed to transmit On-Off Keying (OOK) or Amplitude-Shift Keying (ASK) data in the 286MHz to 960MHz frequency range. It integrates a fractional phase-locked-loop (PLL), so a single, low-cost crystal can be used to generate commonly used world-wide sub-GHz frequencies. The fast response time of the PLL allows for frequency-hopping spread spectrum protocols for increased range and security. The chip also features preset modes with pin-selectable frequencies so that only one wire is required for external microcontroller interface. The only frequency-dependent components required are for the external antenna matching network. Optionally, the device can be put into programmable mode and programmed using an I2C interface. The crystal-based architecture of the MAX41461/MAX41462 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. A clock-out signal at 800kHz is also provided.

The MAX41461/MAX41462 provides output power up to +13dBm into a 50Ω load while drawing < 8mA (Manchester coded). 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 using programmable register settings in I2C mode.

The MAX41461/MAX41462 also features single-supply operation from +1.8V to +3.6V. The device has an auto-shutdown feature to extend battery life and a fast oscillator wake-up with data activity detection.

The MAX41461/MAX41462 is available in a 10-pin μMAX package and is specified over the -40°C to +105°C extended temperature range. The MAX41461/MAX41462 has an ESD rating of 2.5kV HBM.

Design Solution: How to Maximize the Wireless Power Range of Your UHF Sub-GHz Short-Range Device ›

Applications

  • Automatic Meter Reading (AMR)
  • Building Automation and Security
  • Garage Door Openers (GDO)
  • Internet of Things (IoT)
  • Radio Control Toys
  • Remote and Passive Keyless Entry (RKE/PKE)
  • Tire Pressure Monitoring Systems (TPMS)
  • Wireless Sensors and Alarms
MAX41461
300MHz–960MHz ASK Transmitter with I2C Interface
MAX41461, MAX41462: TSimplified Block Diagram
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Documentation

Data Sheet 1

Technical Articles 1

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Tools & Simulations

Software Development 3

IBIS Model 1

Evaluation Kits

eval board
schematic 1
MAX41460EVKIT

Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4146x Family of Sub-1GHz ISM Transmitters
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR ARM Microcontroller (MCU) Board
  • Available Pmod Hardware Interface
  • Windows 7/10-compatible Software
  • On-Board SPI Interface Control for the MAX41460 and optional I2C Control for the MAX41461–MAX41464
  • GUI Controls for MAX32630FTHR Board PMIC Operation from 1.8V to 3.3V
  • Proven 2-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4146x evaluation kit (EV kit) contains a single MAX4146x high output power VHF/UHF sub-GHz ISM/SRD transmitter, designed to transmit Frequency-Shift Keying (FSK), Gaussian GFSK or Amplitude-Shift Keying (ASK) data in the 286MHz to 960MHz frequency range.

The MAX41460 and the MAX41461–MAX41464 evaluation kits operate in conjunction with an external microcontroller (MCU) and Graphical User Interface (GUI) software running on a computer. The MAX41460 uses an SPI interface for internal register configurations while the MAX41461–MAX41464 can use the preset modes or an I2C interface for register programming and control.

The MAX41461, MAX41462, MAX41463, and MAX41464 evaluation kits are also designed to operate with a simple, one-pin data interface, alleviating the need to program the part for nominal operation, or other high-level system (PC with GUI software) having to configure the transmitter for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the evaluation kit, selecting the frequency of operation is as simple as setting two jumpers.

The EV kit includes Windows® 7/10-compatible software that provides a simple graphical user interface (GUI) for configuration of all the MAX4146x registers through the SPI or I2C ports. The GUI also controls the onboard PMIC and can act as a data generator, when the MAX32630FTHR Applications Platform is used.

These evaluation kits have not been FCC or ETSI certified and are not intended for radiated testing.

Applications

  • Automatic Meter Reading (AMR)
  • Building Automation and Security
  • Garage Door Openers (GDO)
  • Internet of Things (IoT) Sensor Networks
  • Radio Control Toys
  • Remote Keyless Entry (RKE)
  • Tire Pressure Monitoring Systems (TPMS)

eval board
schematic 2
MAX41461EVKIT-315

Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4146x Family of Sub-1GHz ISM Transmitters
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR ARM Microcontroller (MCU) Board
  • Available Pmod Hardware Interface
  • Windows 7/10-compatible Software
  • On-Board SPI Interface Control for the MAX41460 and optional I2C Control for the MAX41461–MAX41464
  • GUI Controls for MAX32630FTHR Board PMIC Operation from 1.8V to 3.3V
  • Proven 2-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4146x evaluation kit (EV kit) contains a single MAX4146x high output power VHF/UHF sub-GHz ISM/SRD transmitter, designed to transmit Frequency-Shift Keying (FSK), Gaussian GFSK or Amplitude-Shift Keying (ASK) data in the 286MHz to 960MHz frequency range.

The MAX41460 and the MAX41461–MAX41464 evaluation kits operate in conjunction with an external microcontroller (MCU) and Graphical User Interface (GUI) software running on a computer. The MAX41460 uses an SPI interface for internal register configurations while the MAX41461–MAX41464 can use the preset modes or an I2C interface for register programming and control.

The MAX41461, MAX41462, MAX41463, and MAX41464 evaluation kits are also designed to operate with a simple, one-pin data interface, alleviating the need to program the part for nominal operation, or other high-level system (PC with GUI software) having to configure the transmitter for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the evaluation kit, selecting the frequency of operation is as simple as setting two jumpers.

The EV kit includes Windows® 7/10-compatible software that provides a simple graphical user interface (GUI) for configuration of all the MAX4146x registers through the SPI or I2C ports. The GUI also controls the onboard PMIC and can act as a data generator, when the MAX32630FTHR Applications Platform is used.

These evaluation kits have not been FCC or ETSI certified and are not intended for radiated testing.

Applications

  • Automatic Meter Reading (AMR)
  • Building Automation and Security
  • Garage Door Openers (GDO)
  • Internet of Things (IoT) Sensor Networks
  • Radio Control Toys
  • Remote Keyless Entry (RKE)
  • Tire Pressure Monitoring Systems (TPMS)

eval board
schematic 3
MAX41462EVKIT-434

Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4146x Family of Sub-1GHz ISM Transmitters
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR ARM Microcontroller (MCU) Board
  • Available Pmod Hardware Interface
  • Windows 7/10-compatible Software
  • On-Board SPI Interface Control for the MAX41460 and optional I2C Control for the MAX41461–MAX41464
  • GUI Controls for MAX32630FTHR Board PMIC Operation from 1.8V to 3.3V
  • Proven 2-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4146x evaluation kit (EV kit) contains a single MAX4146x high output power VHF/UHF sub-GHz ISM/SRD transmitter, designed to transmit Frequency-Shift Keying (FSK), Gaussian GFSK or Amplitude-Shift Keying (ASK) data in the 286MHz to 960MHz frequency range.

The MAX41460 and the MAX41461–MAX41464 evaluation kits operate in conjunction with an external microcontroller (MCU) and Graphical User Interface (GUI) software running on a computer. The MAX41460 uses an SPI interface for internal register configurations while the MAX41461–MAX41464 can use the preset modes or an I2C interface for register programming and control.

The MAX41461, MAX41462, MAX41463, and MAX41464 evaluation kits are also designed to operate with a simple, one-pin data interface, alleviating the need to program the part for nominal operation, or other high-level system (PC with GUI software) having to configure the transmitter for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the evaluation kit, selecting the frequency of operation is as simple as setting two jumpers.

The EV kit includes Windows® 7/10-compatible software that provides a simple graphical user interface (GUI) for configuration of all the MAX4146x registers through the SPI or I2C ports. The GUI also controls the onboard PMIC and can act as a data generator, when the MAX32630FTHR Applications Platform is used.

These evaluation kits have not been FCC or ETSI certified and are not intended for radiated testing.

Applications

  • Automatic Meter Reading (AMR)
  • Building Automation and Security
  • Garage Door Openers (GDO)
  • Internet of Things (IoT) Sensor Networks
  • Radio Control Toys
  • Remote Keyless Entry (RKE)
  • Tire Pressure Monitoring Systems (TPMS)

eval board
schematic 4
MAX41463EVKIT-915

Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4146x Family of Sub-1GHz ISM Transmitters
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR ARM Microcontroller (MCU) Board
  • Available Pmod Hardware Interface
  • Windows 7/10-compatible Software
  • On-Board SPI Interface Control for the MAX41460 and optional I2C Control for the MAX41461–MAX41464
  • GUI Controls for MAX32630FTHR Board PMIC Operation from 1.8V to 3.3V
  • Proven 2-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4146x evaluation kit (EV kit) contains a single MAX4146x high output power VHF/UHF sub-GHz ISM/SRD transmitter, designed to transmit Frequency-Shift Keying (FSK), Gaussian GFSK or Amplitude-Shift Keying (ASK) data in the 286MHz to 960MHz frequency range.

The MAX41460 and the MAX41461–MAX41464 evaluation kits operate in conjunction with an external microcontroller (MCU) and Graphical User Interface (GUI) software running on a computer. The MAX41460 uses an SPI interface for internal register configurations while the MAX41461–MAX41464 can use the preset modes or an I2C interface for register programming and control.

The MAX41461, MAX41462, MAX41463, and MAX41464 evaluation kits are also designed to operate with a simple, one-pin data interface, alleviating the need to program the part for nominal operation, or other high-level system (PC with GUI software) having to configure the transmitter for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the evaluation kit, selecting the frequency of operation is as simple as setting two jumpers.

The EV kit includes Windows® 7/10-compatible software that provides a simple graphical user interface (GUI) for configuration of all the MAX4146x registers through the SPI or I2C ports. The GUI also controls the onboard PMIC and can act as a data generator, when the MAX32630FTHR Applications Platform is used.

These evaluation kits have not been FCC or ETSI certified and are not intended for radiated testing.

Applications

  • Automatic Meter Reading (AMR)
  • Building Automation and Security
  • Garage Door Openers (GDO)
  • Internet of Things (IoT) Sensor Networks
  • Radio Control Toys
  • Remote Keyless Entry (RKE)
  • Tire Pressure Monitoring Systems (TPMS)
MAX41460EVKIT
Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464
MAX41460EVKIT: Board Photo
MAX41461EVKIT-315
Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464
MAX41460EVKIT: Board Photo
MAX41462EVKIT-434
Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464
MAX41460EVKIT: Board Photo
MAX41463EVKIT-915
Evaluation Kit for the MAX41460, MAX41461, MAX41462, MAX41463, MAX41464
MAX41460EVKIT: Board Photo

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