آر اف (فرکانس رادیویی) و بی‌سیم فرانت‌اند آر‌اف (ال‌ان‌ای و پی‌ای)

Product Attributes

Introduction

The MAX2742 complete single-chip global positioning system (GPS) RF front-end utilizes many innovative and leading-edge RF CMOS design techniques. This highperformance, 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 highaccuracy 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.

Features

• 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

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