GLOBALSAT GPS Module

Hardware Data Sheet

Product No : MT-512C

User Manual Version 1.1

Globalsat Technology Corporation

16F., No.

186, Jian-Yi Road, Chung-Ho City, Taipei

Hsien 235, Taiwan

Tel: 886-2-8226-3799 Fax: 886-2-8226-3899

E-mail : service@globalsat.com.tw

Website: www.globalsat.com.tw

Issue Date

APPR

CHECK

PREPARE

2013/10/25

Ray

Mason

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MT-512C

High Performance GPS Module

Product Description

MT-512C GPS module features high sensitivity, low power and ultra small form factor. This GPS

module is powered by MTK GPS solution; it can provide you with superior sensitivity and

performance even in urban canyon and dense foliage environment. MT-512C supports up to 210

PRN channels. With 66 search channels and 22 simultaneous tracking channels, MT-512C

acquires and tracks satellites in the shortest time even at indoor signal levels. Through MT-512C’s

excellent low-power consumption characteristic, while using power sensitive devices, especially

portable applications. MT-512C is suitable for the following applications:

Automotive navigation

Fleet management

Marine navigation

Product Features

MediaTek high performance GPS Chipset

Very high sensitivity (Chip Tracking Sensitivity: -165 dBm)

Extremely fast TTFF (Time To First Fix) at low signal level

Support UART interface, baud rate 4800/9600/38400/115200 fixed on internal setting.

Built-in LNA

Built-in GPS Antenna

Compact size (12.6mm x 12.0 mm x 7.6mm) suitable for space-sensitive application

One size component, easy to mount on another PCB board.

Support NMEA0183 V4.0(GGA,GSA,GSV,RMC)

Support SBAS (WASS, EGNOS, MSAS, GAGAN), QZSS

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MT-512C

High Performance GPS Module

Product Pin Description

PIN Number(s)

Name

Type

Description

Note

This is the power input for the RTC and

VBAT

navigation data retention. This pin builds in a

back up battery.

This is the main power supply to the GPS

VCC

module.

GND

Ground.

This is the main transmits channel for

outputting navigation and measurement

TXD

data to user’s navigation software or user

written software.(Baud rate default 9600)

This is the main receive channel for

receiving software commands to the GPS

RXD

module from user written software.

(Baud rate default 9600)

TIMEMARK

One pulse per second output.(1PPS)

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MT-512C

High Performance GPS Module

Electrical Specification

Absolute Maximums Ratings

Parameter

Min.

Typ.

Max.

Conditions

Unit

POWER Supply

Main power supply(VCC)

3.3

VBAT

3.3

VCC power consumption

VCC 3.3V

VBAT power consumption

6.7

6.9

7.2

VBAT 3.3V

Operating Frequency

1.575

Ghz

DC Electrical characteristics

Parameter

Symbol

Min.

Typ.

Max.

Conditions

Units

I/O Low Level Output Voltage

VOL

0.42

I/O High Level Output Voltage

VOH

2.38

I/O Low Level Input Voltage

VI L

-0.3

0.7

I/O High Level Input Voltage

VI H

2.1

3.1

TXD Output Voltage

VTO

2.52

2.8

3.08

RXD Input Voltage

VRI

3.6

High Level Output Current

IOH

Low Level Output Current

IOL

Environmental Characteristics

Parameter

Min

Typ

Max

Unit

Humidity Range

% non-condensing

Operation Temperature

-40

℃

Storage Temperature

-40

℃

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MT-512C

High Performance GPS Module

Receiver Performance

Chipset Tracking :

-165dBm

Sensitivity

Chipset Autonomous acquisition :

-148 dBm

Cold Start - Autonomous

< 35s

Time-To-First-Fix

Warm Start - Autonomous

< 35s

Hot Start - Autonomous

< 1s

Autonomous

< 3m (2D RMS)

Horizontal Position Accuracy

SBAS

<2.0m

Speed

< 0.01 m/s

Velocity Accuracy

Heading

< 0.01 degrees

Reacquisition

0.1 second, average

NMEA Update Rate

1 Hz(GGA,GSA,GSV,RMC)

Maximum Altitude

< 18,000 meter

Maximum Velocity

< 515 meter/ second

Maximum Acceleration

< 4G

<NOTE>

MT-512C’s sensitivity depended different mechanical design.

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