MAX41473

RECOMMENDED FOR NEW DESIGNS

290MHz to 960MHz ASK/FSK Receiver with I2C Interface

High-RF-Sensitivity Receiver with Low Current Consumption, Ideal for Low-Cost and Power-Sensitive ASK/FSK Applications

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Low Bill of Materials (BOM)
    • No External Balun, No External Filter, etc.
    • Single Low-Cost 16MHz External Crystal
  • Long Range with High Sensitivity
  • Low Power Consumption
    • ​9mA Operating Supply Current
    • 10nA Power-Down Current
  • Self-Polling (Remote Wake-Up) for Reduced Power
    • Preamble Detection with Interrupt Output
    • Average Current as Low as 350μA 
    • Duty Cycle Less Than 1% Capable
    • Fast Startup Time
  • Automatic Gain Control (AGC) Adjusted Digital RSSI
  • Automatic Frequency Control (AFC)
  • Fast Frequency Switching Frac-N Synthesizer
  • 33dB Calibrated Image Rejection
  • Passes ETSI Category 2 Blocking Requirements
  • ±2.5kV HBM ESD Protection, ±4kV on LNA Input
  • Up to 200kbps Data Rate (NRZ)
  • 1.8V to 3.6V Supply Voltage
  • -40°C to +105°C Operating Temperature Range
  • 4mm x 4mm, 12-TQFN with 0.8mm Pitch

The MAX41473/MAX41474 are high-performance, low-power receivers ideal for amplitude shift-keyed (ASK) and frequency shift-keyed (FSK) data. The receivers can be configured for three popular sub-1GHz bands while using a single low-cost 16MHz crystal: 287MHz to 320MHz, 425MHz to 480MHz, and 860MHz to 960MHz.

The MAX41473/MAX41474 are capable of ASK or FSK reception, and are also fully programmable through the I2C interface. In addition to the programmable option, the MAX41473/MAX41474 provide a preset option where no programming is required for defined configurations. The design allows for single wire operation to an external microcontroller.

The receiver has excellent RF sensitivity and allows input signals up to 0dBm of power at the RF input. With an integrated IF filter, a few external components, and low operating/power-down currents, the MAX41473/MAX41474 receivers are ideal for cost- and power-sensitive applications. The chips also include a low-noise amplifier (LNA), fully differential image-rejection mixer, on-chip phase-locked loop (PLL) with integrated voltage-controlled oscillator (VCO), received signal strength indicator (RSSI), and digital demodulation.

The devices operate in the 1.8V to 3.6V supply voltage range and also feature a power-saving, fully programmable, self-polling (duty cycling) mode with preamble detection and interrupt output to wake up an external microcontroller unit (MCU).

The parts are available in a 12-pin thin QFN (TQFN) package and are specified for the -40°C to +105°C extended temperature range.

Applications

  • Building Access Control
  • Garage Door Openers (GDO)
  • Home Automation and Security
  • Remote Keyless Entry (RKE)
  • Restaurant Pagers
  • Tire Pressure Monitoring Systems (TPMS)
MAX41473
290MHz to 960MHz ASK/FSK Receiver with I2C Interface
MAX41473/MAX41474 Simplified Block Diagram MAX41473/MAX41474 Functional Diagram MAX41473/MAX41474 I2C Pin Configuration MAX41473/MAX41474 Preset Pin Configuration
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Documentation

Data Sheet 1

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Software Resources

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Tools & Simulations

Software Development 3

IBIS Model 1

Evaluation Kits

MAX41474EVKIT

Evaluation Kit for the MAX41470, MAX41473, and MAX41474

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4147X Sub-1GHz ISM Receiver
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR Arm® Microcontroller (MCU) Board
  • Available PMOD Hardware Interface
  • Windows 10-Compatible Software
  • On-Board SPI Interface Control for the MAX41470 and Optional I2C Control for the MAX41473/74
  • GUI Controls for MAX32630FTHR Board PMIC
    • Operation from 1.8V to 3.3V
  • Proven Four-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4147X evaluation kit (EV kit) contains a single MAX4147X high output power VHF/UHF sub-GHz ISM/ SRD receiver designed to receive frequency-shift keying (FSK), Gaussian GFSK, or amplitude-shift keying (ASK) data in the 287MHz to 320MHz, 425MHz to 480MHz, and 860MHz to 960MHz frequency ranges.

The MAX41470, MAX41473, and MAX41474 EV kits operate in conjunction with an external microcontroller (MCU) and graphical user interface (GUI) software running on a computer. The MAX41470 uses an SPI interface for internal register configurations while the MAX41473/74 can use the preset modes or an I2C interface for register programming and control.

The MAX41473 and MAX41474 EV 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 receiver for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the EV kit, selecting the frequency of operation is as simple as setting jumpers.

The EV kit includes Windows® 10-compatible software that provides a simple GUI for configuration of all the MAX4147X registers through the SPI or I2C ports. The GUI also controls the on-board PMIC when the MAX32630FTHR applications platform is used.

Applications

  • Building Access Control
  • Garage Door Openers (GDO)
  • Home Automation and Security
  • Remote Keyless Entry (RKE)
  • Restaurant Pagers
  • Tire Pressure Monitoring Systems (TPMS)

MAX41473EVKIT

Evaluation Kit for the MAX41470, MAX41473, and MAX41474

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4147X Sub-1GHz ISM Receiver
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR Arm® Microcontroller (MCU) Board
  • Available PMOD Hardware Interface
  • Windows 10-Compatible Software
  • On-Board SPI Interface Control for the MAX41470 and Optional I2C Control for the MAX41473/74
  • GUI Controls for MAX32630FTHR Board PMIC
    • Operation from 1.8V to 3.3V
  • Proven Four-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4147X evaluation kit (EV kit) contains a single MAX4147X high output power VHF/UHF sub-GHz ISM/ SRD receiver designed to receive frequency-shift keying (FSK), Gaussian GFSK, or amplitude-shift keying (ASK) data in the 287MHz to 320MHz, 425MHz to 480MHz, and 860MHz to 960MHz frequency ranges.

The MAX41470, MAX41473, and MAX41474 EV kits operate in conjunction with an external microcontroller (MCU) and graphical user interface (GUI) software running on a computer. The MAX41470 uses an SPI interface for internal register configurations while the MAX41473/74 can use the preset modes or an I2C interface for register programming and control.

The MAX41473 and MAX41474 EV 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 receiver for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the EV kit, selecting the frequency of operation is as simple as setting jumpers.

The EV kit includes Windows® 10-compatible software that provides a simple GUI for configuration of all the MAX4147X registers through the SPI or I2C ports. The GUI also controls the on-board PMIC when the MAX32630FTHR applications platform is used.

Applications

  • Building Access Control
  • Garage Door Openers (GDO)
  • Home Automation and Security
  • Remote Keyless Entry (RKE)
  • Restaurant Pagers
  • Tire Pressure Monitoring Systems (TPMS)

eval board
schematic 1
MAX41470EVKIT

Evaluation Kit for the MAX41470, MAX41473, and MAX41474

Buy Now View Details

Features and Benefits

  • Evaluates the MAX4147X Sub-1GHz ISM Receiver
  • Single Input Voltage Supply from 1.8V to 3.6V
  • Direct Interface with a MAX32630FTHR Arm® Microcontroller (MCU) Board
  • Available PMOD Hardware Interface
  • Windows 10-Compatible Software
  • On-Board SPI Interface Control for the MAX41470 and Optional I2C Control for the MAX41473/74
  • GUI Controls for MAX32630FTHR Board PMIC
    • Operation from 1.8V to 3.3V
  • Proven Four-Layer PCB Design
  • Fully Assembled and Tested

Product Details

The MAX4147X evaluation kit (EV kit) contains a single MAX4147X high output power VHF/UHF sub-GHz ISM/ SRD receiver designed to receive frequency-shift keying (FSK), Gaussian GFSK, or amplitude-shift keying (ASK) data in the 287MHz to 320MHz, 425MHz to 480MHz, and 860MHz to 960MHz frequency ranges.

The MAX41470, MAX41473, and MAX41474 EV kits operate in conjunction with an external microcontroller (MCU) and graphical user interface (GUI) software running on a computer. The MAX41470 uses an SPI interface for internal register configurations while the MAX41473/74 can use the preset modes or an I2C interface for register programming and control.

The MAX41473 and MAX41474 EV 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 receiver for operation. These parts allow the user to preset the operating frequencies by part selection and pin configurations. On the EV kit, selecting the frequency of operation is as simple as setting jumpers.

The EV kit includes Windows® 10-compatible software that provides a simple GUI for configuration of all the MAX4147X registers through the SPI or I2C ports. The GUI also controls the on-board PMIC when the MAX32630FTHR applications platform is used.

Applications

  • Building Access Control
  • Garage Door Openers (GDO)
  • Home Automation and Security
  • Remote Keyless Entry (RKE)
  • Restaurant Pagers
  • Tire Pressure Monitoring Systems (TPMS)
MAX41474EVKIT
Evaluation Kit for the MAX41470, MAX41473, and MAX41474
MAX41473EVKIT
Evaluation Kit for the MAX41470, MAX41473, and MAX41474
MAX41470EVKIT
Evaluation Kit for the MAX41470, MAX41473, and MAX41474
MAX41470EVKIT: Board Photo

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