General Description Delin Comm DM3026-B is a
complete GNSS module. The module can
simultaneously acquire and track multiple satellite
constellations that include GPS, BEIDOU, GALILEO, QZSS and SBAS.It
features low power and small form factor. Besides, it with superior
and performance even in urban can yon and dense foliage
environment.This module supports hybrid ephemeris prediction to
achieve faster cold start. One is self-generated ephemeris
prediction (called EASY) that is no need of both network assistance
and host CPU's intervention.This is valid for up to 3 days and
updates automatically from time to time when GNSS module is powered
on and satellites are available. The other is server-generated
ephemeris prediction (called EPO) that gets from an internet
server. This is valid for up to 14 days. Both ephemeris predictions
are stored in the on-board flash memory and perform a cold
start time less than 15 seconds. FeaturesBuild on high
performance, low-power MediaTek MT3333 chip setUltra high Track
sensitivity: -165dBmExtremely fast TTFF at low signal
levelBuilt in high gain LNALow power consumption: Max
45mA@3.3VNMEA-0183 compliant protocol or custom protocolOperating
voltage: 3.0V to 5.0VOperating temperature
range:-40to85ºCPatch Antenna Size: 25x25x4mmModule
Size: 30x26x8.0mmCommunication type: UART/TTLRoHS compliant
(Lead-free)IATF16949 quality control Power
Supply Regulated power for the DM3026-B is
required. The VCC Pin Need a stable DC voltage supply. Power
supply ripple must be less than 30mV. The input
voltage Vcc should be 3.0V~5.0V, Recommended power supply voltage
is 3.3V . maximum current is 45mA. Suitable decoupling must be
provided by external decoupling circuitry.UART Ports The
module supports two full duplex serial channels UART. All
serial connections are at 3V CMOS logic levels, if need
different voltage levels, use appropriate level shifters. The baud
rate of both serial ports are fully programmable, the data format
is however fixed: X, N, 8, 1, i.e. X baud rate, no parity, eight
data bits and one stop bit, no other data formats are supported,
LSB is sent first. The modules default baud rate is set up 9600bps,
however, the user can change the default baud rate to any
value from 4800 bps to 115kbps. UART port can be used for
firmware upgrade, NMEA output and PMTK proprietary commands
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