Mechanical data
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Dimensions: 11*11*2.2mm
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Weight: 0.5g
Interfaces
•Serial interfaces UART, SPI or I²C Additional master mode I²C
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Digital I/O 1 NReset
1 EINT0 input
1 ON_OFF input
1 WAKEUP output
1 time pulse
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Protocols NMEA, OSP
Support product
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SIM18 EVB KIT with USB V2.0 full speed interface
Certificate
•
CE （available at Nov. 2010)
Performance data
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Receiver type 48-channel SiRF4 engine
GPS L1, C/A Code
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Max. update rate 1Hz
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Sensitivity1
Tracking: -161 dBm
Reacquisition: -160 dBm
Cold starts: -147 dBm
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Time-To-First-Fix2
Cold starts: 35 s (typical)
Hot starts: 0.6 s (typical)
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Accuracy
Position3: 2.5m CEP
Speed4: <0.01m/s
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Operational limits
Velocity: <1850km/h
Altitude: <18288km
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Operation temperature: -40°C to +85 °C
Electrical data
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Power supply 1.71V to 1.89V
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Backup power 1.71V to 1.89V
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Power consumption2,5
Acquisition 45mA (average)
Tracking 40mA (average)
Sleep 18μA(average)
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Antenna type Active and passive
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Antenna power External or internal VCC_ANT
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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