MAX2742

Single-Chip Global Positioning System Receiver Front-End


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Description

The MAX2742 complete single-chip global positioning system (GPS) RF front-end utilizes many innovative and leading-edge RF CMOS design techniques. This high-performance, state-of-the-art device consumes extremely low power and eliminates the need for costly SAW and bulky discrete IF filters. The MAX2742 incorporates a fully integrated low-noise amplifier (LNA) and mixer, IF section, digital sampler, and local oscillator synthesizer.

The intended input signal for the MAX2742 is the L1 GPS signal 1.57542GHz. This device supports high-accuracy output quantization, which delivers the best performance obtainable for the GPS receiver. The power consumption of the MAX2742 is as low as 32mW at a +2.4V supply.

The MAX2742 is available in a space-saving 48-pin TQFP package and is specified for the extended (-40°C to +85°C) temperature range.
MAX2742: Typical Application Circuit MAX2742: Typical Application Circuit Enlarge+

Key Features

  • Complete Single-Chip GPS Front-End Receiver
  • Single-Ended or Differential Outputs at 1.023MHz
  • Low 4.5dB Typical Noise Figure
  • No External IF SAW or Discrete Filters Required
  • Very Low 32mW Power Consumption at +2.4V
  • Wide +2.4V to +3.6V Operational Supply Voltage Range
  • Extended -40°C to +85°C Temperature Range

Applications/Uses

  • Consumer Electronics
  • Digital Cameras and Camcorders
  • Emergency Response Systems
  • Emergency Roadside Assistance
  • Geographical Information Systems (GISs)
  • In-Vehicle Navigation Systems (IVNS)
  • Inventory Management
  • Location-Based Services (PDAs and Recreational Handheld/Walkie Talkies)
  • Telematics (Vehicle and Asset Tracking, Inventory Management)

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs
App Note 3447 Complete Stand-Alone GPS Receiver Solution with MAX2742
App Note 602 RF IC Building Block Solutions for GPS

Quality and Environmental Data

Request Reliability Report for: MAX2742 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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