Meet targets stable performance of beidou + GPS combined beidou module BD - 228
Product Description
One hundred star technology launch beidou/BD - 228 GPS module, the xi 'an aerospace calling from huaxun beidou/GPS chip, is a complete positioning satellite receiving equipment, have the omni-directional positioning function, can meet the needs of the professional orientation of strict requirements and personal consumption. Using 28 pin stamp hole encapsulation (40 mmx30mmx2. 8 mm). In line with the "beidou application promotion team" type IV specifications. GPS terminal can be applied to develop a variety of products such as: shipping, handheld devices, car navigation, car security system, vehicle monitoring and other satellite positioning applications, etc. Performance indicators: chip Beidou + GPS dual-mode chips conventional frequency L1, 1575.42 MHz BD2 B1, 1575.42 MHz C/A code 1.023 MHz chip rate channel 40 precision location < 5 m speed 0.1 m/s time 1 mu s The sensitivity capture - 147 DBM tracking - 159 DBM Coordinate system The default The WGS - 84. other Can choose other coordinate system Positioning time (TTFF) : accurate positioning time and environment And recapture < 1 s Warm start < 1 s Wen started The < 36 s Cold start The < 36 s Dynamic condition highly < 18000 m speed < 515 m/s The acceleration < 4 g The interface specification 28 PIN table packaging The power supply The power supply 3.3 V + / - 5% DC ripple < 50 mv current 120 ma or less interface A serial port Two TTL serial ports at full speed agreement NMEA0183 / Binary (default NMEA0183) pulse level TTL Pulse cycle 100 ms GPS active antenna Center frequency 1575.42 + / - 1.023 MHz 1561.098 MHz gain Acuity 27 db (line 5 meters long) Noise factor 1.8 dB or less Standing wave output 2.0 or less voltage 3.3 V + / - 5% DC current 15 ma or less Plug type The user can choose Environmental features Working temperature To 40 ℃ to 85 ℃ Keep the temperature To 40 ℃ to 85 ℃ Physical properties The length of the 40 mm The width of the 30 mm highly The 2.8 mm
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