Technical Description; Bluetooth™ Gps Receiver Architecture; Technical Specifications; Electrical Characteristics - FALCOM NAVI-XS User Manual

Navi-xs User's Guide

4 TECHNICAL DESCRIPTION

4.1 Bluetooth™ GPS Receiver architecture
The NAVI-XS OEM GPS receiver from FALCOM is a new OEM product that features
the SiRFstarIIx single chipset. The core of NAVI-XS is comprised of the GSC2x - that
includes the Digital and RF in a single chip. The flexibility of the core allows the core
processing engine to track up to 12 satellites. The core of NAVI-XS contains a built in
sequencer, which handles all the high-rate interrupts for GPS tracking and
acquisitions. After initialization, the receiver handles all the time critical and low
latency acquisition, tracking and reacquisition tasks of GPS autonomously. The on-
chip SRAM size is 1-Mbit memory that is used for instructions. The internal XTrac 2.0.2
software stored in the 8 Mbit FLASH completes the package providing flexible system
architecture. The data delivered from GPS receiver will be sent via Bluetooth™
antenna to the host device (to the connected Bluetooth™ enabled device).

4.2 Technical specifications

4.2.1 Electrical Characteristics

4.2.1.1
4.2.1.2
4.2.1.3
This confidential document is a property of FALCOM GmbH and may not be copied or circulated without previous permission.
Figure 4: The architecture of NAVI-XS Bluetooth™ GPS receiver

General

Frequency
C/A code
Channels

Accuracy

Position
Velocity
Time

Datum

WGS-84
L1, 1575.42 MHz
1.023 MHz chip rate
12
10 meters CEP without SA
0.1 meters/second, without SA
1 microsecond synchronized to GPS time
Version 1.01
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