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GP2021 PRODUCT PROFILE

12 Channel GPS Correlator

Product Status:

The GP2021 is a 12 channel C/A code baseband correlator for use in NAVSTAR GPS satellite navigation receivers. The GP2021 complements the GP2015 and GP2010 C/A code RF downconverters available from Zarlink Semiconductor. GP2021 is compatible with most 16 bit and 32 bit microprocessors, especially those from Motorola and Intel, with additional on-chip support for the ARM60 32 bit RISC processor. When the ARM60 is used, the on-chip memory management functions allow implementation of a full GPS receiver with minimal external logic.

The GP2021 allows individual channel de-activation, for systems not requiring full 12-channel operation, to save power and processor loading. Receiver power may be further conserved by reducing the supply voltage to 2.2 V under battery backup. Although all system functions are disabled, the 32.768 kHz oscillator and Real Time Clock are maintained for the microprocessor to estimate satellite visibility at power on to reduce signal acquisition time.

Features & Benefits

  • 12 Fully Independent Correlation Channels
  • On-Chip Dual UART and Real Time Clock
  • Compatible with most 16 and 32 bit Microprocessors
  • Memory Control Logic for ARM60 Microprocessor
  • Low Voltage, Low Current Power-Down Mode
  • Power Dissipation 150 mW Typical
  • Compatible with GP2015 and GP2010 RF Front Ends
  • Battery Backup Voltage 2.2 V (min)

        • Typical Applications

      • GPS Navigation Systems
      • GPS Geodetic Receivers
      • Time Transfer Receivers

        • Product Packaging & Availability

        Part
        Number        		 Package
        Type         		Pin Count
        		 Lead-Free
        Option         		Shipping
        Option(s)         		Lead
        Time(wks)         		Status

        Packaging Information

        Technical Support

        Related Products
        GP4020   GPS Receiver Baseband Processor
        GP2015   Miniature GPS Receiver RF Front-End
        GP2010   GPS Receiver RF Front-End

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