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.
Key Features
Applications/Uses
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
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