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Chip Antenna

WM8021GR GNSS Module

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WM8112GR is a complete GPS/GLONASS/BEIDOU engine module that features super sensitivity, ultra-low power and small form factor. The GPS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time i

Features:

  • Ultra high sensitivity: -165dBm (Built in LNA)

  • Fast TTFF at low signal level

  • Ultra low power consumption: Acquisition 26 mA ,Tracking 20 mA (without antenna)

  • Operating voltage: 3.0V to 3.6V

  • Operating temperature range: -40 to 85

  • NMEA-0183 compliant protocol or custom protocol

  • Small footprint: 10.0x9.7x2.2mm, 18-half-holes PCB module

  • RoHS compliance


Specification:


Product Description

Protocol

NMEA-0183 version 3.01 ASCII output

GGA, GSA, GSV & RMC (Optional: VTG, GLL & ZDA)

Host Interface

UART

(Selectable baud rate: 4800,9600,19200,38400,57600)

Dimension

10.0mm x 9.7mm x 2.2mm

Package

Half-hole PCB module

Electrical Specifications

Frequency

GPS L1, 1575.42MHz

GLONASS L1, 1598.0625~1605.375MHz

BEIDOU B1, 1561.098MHz

C/A Code

1.023MHz chip rate

DGPS

SBAS(default) [QZSS,WASS,EGNOS,MSAS,GAGAN*]

Channels

33 tracking / 99 acquisition channel

Accuracy (Open sky)

Position: 3.0m CEP50 without SA (Typ.)

Velocity: 0.1m/s without SA

Timing (PPS) accuracy: ±10ns (Typ.)

TTFF

(Time to First Fix)

Re-Acquisition: <1 sec. (Avg.)

Hot start: 1 sec. (Avg.)

Warm start: 33 sec. (Avg.)

Cold start: 35 sec. (Avg.)

Dynamic Conditions

Altitude: 18,000m (Max.)

Velocity: 515m/s (Max.)

Acceleration: 4G (Max.)


Functions Block Diagram:




Applications:

  • Mobile Internet Device

  • Tablet PC

  • Portable Navigation Device (PND)

  • Vehicle Navigation Systems



 
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