The smallest GPS module with Sirf 4 chipset
Performance data
Receiver type 48-channel SiRF4 engine
GPS L1, C/A Code
Max. Update rate 1Hz
Sensitivity1
Tracking: -161 dBm
Reacquisition: -160 dBm
Cold starts: -147 dBm
Time-To-First-Fix2
Cold starts: 35 s (typical)
Hot starts: 0.6 s (typical)
Accuracy
Position3: 2.5m CEP
Speed4: <0.01m/s
Operational limits
Velocity: <1850km/h
Altitude: <18288km
Operation temperature: -40° C to +85 ° C
Electrical data
Power supply 1.71V to 1.89V
Backup power 1.71V to 1.89V
Power consumption2, 5
Acquisition 45mA (average)
Tracking 40mA (average)
Sleep 18μA(average)
Antenna type Active and passive
Antenna power External or internal VCC_ANT
____________________
1. Demonstrated with a good active antenna
2. All SV @-130 dBm
3.50% 24 hr static, -130dBm
4.50%@ 30m/s
5. @1.8V with a passive antenna
Dimensions: 11*11*2.2mm

Weight: 0.5g
Interfaces
Serial interfaces UART, SPI or I² C Additional master mode I² C

Digital I/O 1 NReset
1 EINT0 input
1 ON_OFF input
1 WAKEUP output
1 time pulse

Protocols NMEA, OSP
Support product

SIM18 EVB KIT with USB V2.0 full speed interface
Certificate
CE (available at Nov. 2010)