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Single-Chip Global Positioning System Receiver Front-End

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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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)

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.

Simplified Block Diagram

MAX2742: Typical Application Circuit MAX2742: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .