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

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



The MAX41470 is a high-performance, low-power receiver that is ideal for amplitude shift-keyed (ASK) and frequency shift-keyed (FSK) data. The receiver 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 MAX41470 is capable of both ASK and FSK reception and is also fully programmable through an SPI interface.

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 MAX41470 receiver is ideal for cost- and power-sensitive applications. The chip also includes 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 device operates in the 1.8V to 3.6V supply voltage range and also features 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.

MAX41470: Functional Diagram MAX41470: Functional Diagram 放大+


  • 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


  • null
  • null
  • null
  • null
  • null
  • null

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX41470EVKIT: Evaluation Kit for the MAX41470
申请可靠性报告: MAX41470 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >



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

  • Low Bill of Materials (BOM)
  • Long Range with High Sensitivity
  • Low Power Consumption