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MAX1473

Features: Optimized for 315MHz or 433MHz ISM BandOperates from Single 3.3V or 5.0V SuppliesHigh Dynamic Range with On-Chip AGCSelectable Image-Rejection Center FrequencySelectable x64 or x32 fLO/fXTAL RatioLow 5.2mA Operating Supply Current<2.5µA Low-Current Power-Down Mode for Efficient ...

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SeekIC No. : 004408947 Detail

MAX1473: Features: Optimized for 315MHz or 433MHz ISM BandOperates from Single 3.3V or 5.0V SuppliesHigh Dynamic Range with On-Chip AGCSelectable Image-Rejection Center FrequencySelectable x64 or x32 fLO/fXT...

MAX1473 Data Sheet

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Part Number:
MAX1473
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

 Optimized for 315MHz or 433MHz ISM Band
Operates from Single 3.3V or 5.0V Supplies
High Dynamic Range with On-Chip AGC
 Selectable Image-Rejection Center Frequency
 Selectable x64 or x32 fLO/fXTAL Ratio
 Low 5.2mA Operating Supply Current
 <2.5µA Low-Current Power-Down Mode for
    Efficient Power Cycling
 250µs Startup Time
 Built-In 50dB RF Image Rejection
 Receive Sensitivity of -114dBm



Application

Automotive Remote Keyless Entry
Garage Door Openers
Remote Controls Wireless 
SecuritySystems
Home Automation
Local Telemetry
Systems


Pinout

Connection Diagram


Specifications

AVDD5 to AGND .....................................................-0.3V to +6.0V
AVDD to AGND .......................................................-0.3V to +4.0V
DVDD to DGND.......................................................-0.3V to +4.0V
AGND to DGND.......................................................-0.1V to +0.1V
IRSEL, DATAOUT, XTALSEL, AGCDIS,
PWRDN to AGND .......................................-0.3V to (VDD5 + 0.3V)
All Other Pins to AGND ...............................-0.3V to (VDD + 0.3V)
Continuous Power Dissipation................................ (TA = +70°C)
28-Pin TSSOP (derate 12.8mW/°C above +70°C) .1025.6mW
32-Pin Thin QFN (derate 21.3mW/°C
above +70°C).............................................................1702.1mW
Operating Temperature Ranges
MAX1473E__ .....................................................-40°C to +85°C
Storage Temperature Range ...........................-60°C to +150°C
Lead Temperature (soldering 10s) ................................+300°C


Description

The MAX1473 fully integrated low-power CMOS superheterodyne receiver is ideal for receiving amplitudeshift- keyed (ASK) data in the 300MHz to 450MHz frequency range. Its signal range is from -114dBm to 0dBm. With few external components and a low-current power-down mode, it is ideal for cost- and power-sensitive applications typical in the automotive and consumer markets. The chip consists of a low-noise amplifier (LNA), a fully differential image-rejection mixer, an onchip phase-locked-loop (PLL) with integrated voltagecontrolled oscillator (VCO), a 10.7MHz IF limiting amplifier stage with received-signal-strength indicator (RSSI), and analog baseband data-recovery circuitry. The MAX1473 also has a discrete one-step automatic gain control (AGC) that drops the LNA gain by 35dB when the RF input signal is greater than -57dBm.

The MAX1473 is available in 28-pin TSSOP and 32-pin thin QFN packages. Both versions are specified for the extended (-40°C to +85°C) temperature range.




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