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GNSS模组
SIMCom presents a high performance and reliable assisted GPS module-SIM28. It is in a SMT type with MTK mature GPS only navigation engine, which allows you to achieve the industry’s high levels of accuracy and Time-to-First-Fix (TTFF) with lowest power consumption.
产品详情
Mechanical data
Dimensions: 16*12.2*2.4mm
Weight: 1g
Features
Support EASYTM self-generated orbit prediction
Support SBAS ranging (WAAS, EGNOS, GAGAN,
MSAS)
Support EPOTM orbit prediction
Support Jamming removing function
Low-noise amplifier has been integrated
Interfaces
Serial interfaces
UART, SPI / I2C
Digital I/O
TIMEMARK output
EINT0 input
GPIO
Protocols
NMEA
PMTK
Support evaluation products
SIM28-TE
SIM28EVB KIT with USB V2.0 full speed interface
Electrical data
Power supply
+2.8V ~4.3V
Backup power
+2.3V ~4.3V
Power consumption2,5
-- Acquisition:24 mA
-- Tracking:19mA
-- Standby mode:<200μA
Antenna type
Active and Passive
External or internal
Antenna power
VCC_RF
Performance data
Receiver type
22 tracking / 66 acquisitionchannel GPS receiver GPS L1, C/A Code
Max. update rate 10Hz
Sensitivity1
Tracking:-165 dBm
Reacquisition:-160 dBm
Cold starts:-147 dBm
Time-To-First-Fix2
Cold starts with EASY:13s
Warm starts with EASY:1~2s
Cold starts:32s
Cold starts with
EPO Assist:12.5s
Hot starts:<1s
Accuracy
Automatic Position3:2.5m CEP
Speed4:0.1m/s
Timing:10ns
Operation temperature:-40℃~+85 ℃
Certificate
1.Demonstrated with a good active antenna
2.All SV @ –130 dBm
3.50% 24 hr static, -130dBm
4.50%@ 30m/s
5. @3.3V with a passive antenna
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