SiRF Chips and Software
SiRFstarIIt BLOCK DIAGRAM
SiRFstarIIt Chip Set and SiRFNav Software
GPS Tracker Chip Set and Software for Consumer Products
SiRF's technology is protected by U.S. and foreign patents pending and issued. SiRF and the SiRF logo are registered trademarks of SiRF Technology, Inc. SiRFstar, SiRF Powered, SnapLock, Foliage Lock,
TricklePower, SingleSat, SiRFLoc, SiRFDRive, SnapStart, Push-to-Fix, SiRFNav, SiRFWare and SiRFNav are trademarks of SiRF Technology, Inc. Other trademarks are property of respective companies.
September 2002
Rev. 1.4
Develop
2
APPLICATIONS
The SiRFstarIIt is designed to be embedded into large volume
applications that use multi-thread processors and real time operating
systems. The SiRFstarIIt hardware can be added to the host
motherboard within an area smaller than two centimeters square, and
with minimal increment in bill of material. The accurate positioning and
optinal built in dead reckoning sensor support provide optimum
performance for automotive navigation and telematics systems. Small
size and low cost also make the SiRFstarIIt the solution for portable
devices such as hand-held navigators and Personal Digital Assistants
where space and cost are critical.
The GSP2t's on-chip wheel tick counter and analog to digital convertor
for heading gyros make the SiRFstarIIt particularly well suited to
automotive applications. The SIRFDRive closely coupled dead
reckoning software combines GPS and DR measurements to provide
continuous and accurate navigation in the most challenging operating
environments such as urban canyons and tunnels. GPS measurements
calibrate the dead reckoning sensors allowing the use of economical
hardware, while dead reckoning data optimizes and cross-checks the
GPS solutions.
Evaluate
1
Build
3
SiRFstarIIt ARCHITECTURE
SiRFstarIIt makes it easy and economical to add high-performance SiRFstarII technology to
systems that are based on many popular processors and operating systems. The SiRFstarIIt
solution allows GPS function to be added at minimal cost in components and circuit board
area, by sharing the host system's processor, memory resources and Real TIme Clock. The
chipset acquires and tracks satellites, then sends raw measurements to the host processor
running the SiRFNav software in parallel with the host applications. The SiRFNav software
module computes position time and velocity. For enhanced accuracy and navigation
reliability, SiRFDRive dead reckoning data and SBAS corrections can also be processed.
The chipset consists of the GSP2t, highly integrated digital chip, GRF2i/LP integrated RF receiver and the SiRFNav
software. The GSP2t is packaged as 7mm 48 pin LQFP packages and the GRF2i/LP is in a 5mm 32 pin QFN package.
External components are minimized thanks to their high level of integration. SiRFNav software is designed for easy
porting to most common host systems.
ARCHITECTURE HIGHLIGHTS
SiRF's Industry Leading GPS available
for Host System Applications
Builds on high performance SiRFstarII
GPS tracking engine chipset plus navigation software
Signal acquisition using 1920 time/frequency search
channels
SBAS (WAAS, EGNOS, MSAS) support
Satellite signal tracking engine performs GPS
acquisition and tracking functions
Multipath-mitigation hardware
Cold Start averages 45 seconds
Low Power
Only 175 mW at full power
Snap Start mode allows reduced power fixes
Maximizes Position Availability
SingleSat™ updates in reduced visibility
Superior urban canyon performance
FoliageLock™ for weak signal tracking
Optional SiRFDRive™ dead reckoning for
continuous, reliable navigation
For more information, contact your SiRF representative, call our sales force on
+1 (408) 467-0410, or visit us at www.sirf.com.
CHIP ORDERING CONFIGURATION
RF CHIP PACKAGE
DIGITAL CHIP PACKAGE
Chip Name
SiRFstarII GRF2i/LP
Chip PN
GRF2i/LP-0214
Package
QFN, 32 pin
Chip Name
SiRFstarII GSP2t
Chip PN
GSP2t-7200
Package
LQFP, 48 pin
FAMILY HIGHLIGHTS
1
3
Evaluate
2
Develop
Build
SiRF California
+1 (408) 467-0410
sales@sirf.com
SiRF Texas
Central U.S.
+1 (972) 239-6988
jdaniels@sirf.com
SiRF United Kingdom
+44 1344 668390
aellis@sirf.com
SiRF France
+33 3 82 86 04 15
rocky@sirf.com
SiRF Europe
+49 81 529932-90
peterz@sirf.com
SiRF Taiwan
+886 2 2723 7853
tomlin@sirf.com
WORLDWIDE SALES OFFICES
GSP2t- Digital Tracker IC
Integrated Signal Processor acquires and tracks satellites
autonomously
Raw measurements and GPS data output via serial-
port to host
Uses on-chip high precision Real-Time Clock or host
processor’s RTC
Analog to Digital converter for dead reckoning heading
gyro or other input
Odometer counter and forward/reverse indicator input
On-chip UART
GRF2i/LP – Low Power RFIC
On-chip VCO and reference oscillator
Integrated LNA
Uses less than 30mA’s of current
Simplified digital interface
SiRFNav™ Host Processor Software
Runs on host system processor and memory
Easily portable to multi-thread processors and
operating systems
Uses 300Kbytes ROM and 100Kbytes RAM, dependent
on host
Optional SiRFDRive™ dead reckoning for continuous,
reliable navigation
2-Bit
(Optional)
RTC XTAL
(Optional)
AGC
GPS
Antenna
Input
GPS
CLKS
RF
Filter LNA
GSP2t GRF2i/LP
SiRFNav
User App. Code
Operating System
Host CPU
REF XTAL3.3V 1.8V
Serial
Data
GUI
CounterADC I/O
Gyro
Odometer
Reverse
2.85V
Position Accuracy
Autonomous
SBAS
Receiver
Tracking
Channels
Max. Update Rate
Sensitivity
Max. Altitude
Max. Velocity
Protocol Support
<10m
<5m
L1, CA code
12
1Hz
-172dBW
<60,000 ft
<1,000 knots
SiRF Binary
Acquisition
Reacquisition Time
SnapStart
Hot Start
Warm Start
Cold Start
Power
Full Power
Voltage
100msec
<3sec
<8sec
<38sec
<45sec
<175mW
GRF: 2.85V, GSP: Core 1.8V, IO 3.3V
TECHNICAL SPECIFICATIONS
SiRF Chips and Software
SiRFstarIIt BLOCK DIAGRAM
SiRFstarIIt Chip Set and SiRFNav Software
GPS Tracker Chip Set and Software for Consumer Products
SiRF's technology is protected by U.S. and foreign patents pending and issued. SiRF and the SiRF logo are registered trademarks of SiRF Technology, Inc. SiRFstar, SiRF Powered, SnapLock, Foliage Lock,
TricklePower, SingleSat, SiRFLoc, SiRFDRive, SnapStart, Push-to-Fix, SiRFNav, SiRFWare and SiRFNav are trademarks of SiRF Technology, Inc. Other trademarks are property of respective companies.
September 2002
Rev. 1.4
Develop
2
APPLICATIONS
The SiRFstarIIt is designed to be embedded into large volume
applications that use multi-thread processors and real time operating
systems. The SiRFstarIIt hardware can be added to the host
motherboard within an area smaller than two centimeters square, and
with minimal increment in bill of material. The accurate positioning and
optinal built in dead reckoning sensor support provide optimum
performance for automotive navigation and telematics systems. Small
size and low cost also make the SiRFstarIIt the solution for portable
devices such as hand-held navigators and Personal Digital Assistants
where space and cost are critical.
The GSP2t's on-chip wheel tick counter and analog to digital convertor
for heading gyros make the SiRFstarIIt particularly well suited to
automotive applications. The SIRFDRive closely coupled dead
reckoning software combines GPS and DR measurements to provide
continuous and accurate navigation in the most challenging operating
environments such as urban canyons and tunnels. GPS measurements
calibrate the dead reckoning sensors allowing the use of economical
hardware, while dead reckoning data optimizes and cross-checks the
GPS solutions.
Evaluate
1
Build
3
SiRFstarIIt ARCHITECTURE
SiRFstarIIt makes it easy and economical to add high-performance SiRFstarII technology to
systems that are based on many popular processors and operating systems. The SiRFstarIIt
solution allows GPS function to be added at minimal cost in components and circuit board
area, by sharing the host system's processor, memory resources and Real TIme Clock. The
chipset acquires and tracks satellites, then sends raw measurements to the host processor
running the SiRFNav software in parallel with the host applications. The SiRFNav software
module computes position time and velocity. For enhanced accuracy and navigation
reliability, SiRFDRive dead reckoning data and SBAS corrections can also be processed.
The chipset consists of the GSP2t, highly integrated digital chip, GRF2i/LP integrated RF receiver and the SiRFNav
software. The GSP2t is packaged as 7mm 48 pin LQFP packages and the GRF2i/LP is in a 5mm 32 pin QFN package.
External components are minimized thanks to their high level of integration. SiRFNav software is designed for easy
porting to most common host systems.
ARCHITECTURE HIGHLIGHTS
SiRF's Industry Leading GPS available
for Host System Applications
Builds on high performance SiRFstarII
GPS tracking engine chipset plus navigation software
Signal acquisition using 1920 time/frequency search
channels
SBAS (WAAS, EGNOS, MSAS) support
Satellite signal tracking engine performs GPS
acquisition and tracking functions
Multipath-mitigation hardware
Cold Start averages 45 seconds
Low Power
Only 175 mW at full power
Snap Start mode allows reduced power fixes
Maximizes Position Availability
SingleSat™ updates in reduced visibility
Superior urban canyon performance
FoliageLock™ for weak signal tracking
Optional SiRFDRive™ dead reckoning for
continuous, reliable navigation
For more information, contact your SiRF representative, call our sales force on
+1 (408) 467-0410, or visit us at www.sirf.com.
CHIP ORDERING CONFIGURATION
RF CHIP PACKAGE
DIGITAL CHIP PACKAGE
Chip Name
SiRFstarII GRF2i/LP
Chip PN
GRF2i/LP-0214
Package
QFN, 32 pin
Chip Name
SiRFstarII GSP2t
Chip PN
GSP2t-7200
Package
LQFP, 48 pin
FAMILY HIGHLIGHTS
1
3
Evaluate
2
Develop
Build
SiRF California
+1 (408) 467-0410
sales@sirf.com
SiRF Texas
Central U.S.
+1 (972) 239-6988
jdaniels@sirf.com
SiRF United Kingdom
+44 1344 668390
aellis@sirf.com
SiRF France
+33 3 82 86 04 15
rocky@sirf.com
SiRF Europe
+49 81 529932-90
peterz@sirf.com
SiRF Taiwan
+886 2 2723 7853
tomlin@sirf.com
WORLDWIDE SALES OFFICES
GSP2t- Digital Tracker IC
Integrated Signal Processor acquires and tracks satellites
autonomously
Raw measurements and GPS data output via serial-
port to host
Uses on-chip high precision Real-Time Clock or host
processor’s RTC
Analog to Digital converter for dead reckoning heading
gyro or other input
Odometer counter and forward/reverse indicator input
On-chip UART
GRF2i/LP – Low Power RFIC
On-chip VCO and reference oscillator
Integrated LNA
Uses less than 30mA’s of current
Simplified digital interface
SiRFNav™ Host Processor Software
Runs on host system processor and memory
Easily portable to multi-thread processors and
operating systems
Uses 300Kbytes ROM and 100Kbytes RAM, dependent
on host
Optional SiRFDRive™ dead reckoning for continuous,
reliable navigation
2-Bit
(Optional)
RTC XTAL
(Optional)
AGC
GPS
Antenna
Input
GPS
CLKS
RF
Filter LNA
GSP2t GRF2i/LP
SiRFNav
User App. Code
Operating System
Host CPU
REF XTAL3.3V 1.8V
Serial
Data
GUI
CounterADC I/O
Gyro
Odometer
Reverse
2.85V
Position Accuracy
Autonomous
SBAS
Receiver
Tracking
Channels
Max. Update Rate
Sensitivity
Max. Altitude
Max. Velocity
Protocol Support
<10m
<5m
L1, CA code
12
1Hz
-172dBW
<60,000 ft
<1,000 knots
SiRF Binary
Acquisition
Reacquisition Time
SnapStart
Hot Start
Warm Start
Cold Start
Power
Full Power
Voltage
100msec
<3sec
<8sec
<38sec
<45sec
<175mW
GRF: 2.85V, GSP: Core 1.8V, IO 3.3V
TECHNICAL SPECIFICATIONS
