GP2021 Datasheet, PDF(1/62 Page) Mitel Networks Corporation – GPS 12 channel Correlator Advance Information

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GP2021 Datasheet, PDF (1/62 Pages) Mitel Networks Corporation – GPS 12 channel Correlator Advance Information

GP2021

GPS 12 channel Correlator

Advance Information

DS4077 - 2.6 July 1996

The GP2021 is a 12 channel C/A code baseband

correlator for use in NAVSTAR GPS and GLONASS satellite

navigation receivers. The GP2021 complements the GP2015

and GP2010 C/A code RF downconverters available from

Mitel Semiconductor.

The GP2021 is compatible with most 16 bit and 32 bit

microprocessors, especially those from Motorola and Intel,

with additional onâchip support for the ARM60 32 bit RISC

processor. When the ARM60 is used, the onâchip memory

management functions allow implementation of a full GPS

receiver with minimal external logic.

The GP2021 allows individual channel deâactivation, 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 2.2V under

battery backup. Although all system functions are disabled,

the 32.768kHz oscillator and Real Time Clock are maintained

for the microprocessor to estimate satellite visibility at power

on to reduce signal acquisition time.

A development system called the GPS Architect is

available as a basis for receiver design using the GP2021 and

associated products.

FEATURES

s 12 Fully Independent Correlation Channels

s 1PPS UTC Aligned Timing Output

s OnâChip Dual UART and Real Time Clock

s Compatible with most 16 and 32 bit Microprocessors

s Memory Control Logic for ARM60 Microprocessor

s Low Voltage, Low Current PowerâDown Mode

s Power Dissipation 150mW Typical

s Compatible with GP2015 and GP2010 RF Front Ends

s Battery Backup Voltage 2.2V (min)

APPLICATIONS

s GPS Navigation Systems

s High Integrity Combined GPSâGLONASS Receivers

s GPS Geodetic Receivers

s Time Transfer Receivers

ORDERING INFORMATION

GP2021/IG/GQ1R