USGlobalsat ER-506 User Manual

GLOBALSAT GPS Module

Hardware Data Sheet

Product No : ER-506

User Manual Version 1.1

Globalsat Technology Corporation

16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei
Hsien 235, Taiwan

Tel: [phone] Fax: [phone]

E-mail : [e-mail]

Website: www.globalsat.com.tw

Issue Date

2013/10/08

APPR

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ER-506
High Performance GPS Module

Product Description

Product Description

ER-506 GPS module features high sensitivity, low power and ultra small form factor. This GPS
module is powered by SiRF Star IV, it can provide you with superior sensitivity and performance
even in urban canyon and dense foliage environment. With SiRF CGEE (Client Generated
Extended Ephemeris) technology, it predicts satellite positions for up to 3 days and delivers
CGEE-start time of less than 15 seconds under most conditions, without any network assistance.
Besides, MicroPower Mode allows GPS module to stay in a hot-start condition nearly continuously
while consuming very little power. ER-506 is suitable for the following applications:

 Automotive navigation
 Fleet management
 Marine navigation

Product Features

 SiRF Star IV high performance GPS Chipset
 Very high sensitivity (Tracking Sensitivity: -163 dBm)
 Extremely fast TTFF (Time To First Fix) at low signal level
 Support RS-232 interface.
 Built-in LNA(with in CHIP)
 Compact size (30.0mm x 30.0 mm x 10.7mm) suitable for space-sensitive application
 Support NMEA 0183 V3.0 (GGA, GSA, GSV, RMC, VTG, GLL, ZDA)
 Support OSP protocol
 Support SBAS (WASS, EGNOS, MSAS, GAGAN)

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ER-506
High Performance GPS Module

Product Pin Description

PIN Number(s)

Name Type

Description Note

1,5

2

3 RXD I

4

6

GND P Ground.

VIN P

TXD O

Directive O

Electrical Specification

Absolute Maximums Ratings

Parameter Min. Typ. Max. Conditions Unit

POWER Supply

This is the main power supply to the engine
board. (4.5Vdc to 6.5Vdc)
This is the main receive channel for

receiving software commands to the engine
board from SiRFdemo software or from user
written software. Baud rate based on flash
memory setting.

This is the main transmits channel for
outputting navigation and measurement
data to user’s navigation software or user
written software.

This pin indicates the GPS states.

Main power supply(VCC) 4.5 5.0 6.5 V

Main power supply Current

RF

Input Impendance 50 Ω

Operating Frequency 1.575 Ghz

45 50 55 GPS is not 3D Fixed. mA

33 34 38 GPS is 3D Fixed. mA

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ER-506
High Performance GPS Module

DC Electrical characteristics

Parameter Symbol Min. Typ. Max. Conditions Units

Low Level Output Voltage VOL 0.4 V

High Level Output Voltage VOH 3.3 V

-232 Low Level Output Voltage VI L -6 V

-232 High Level Output Voltage VI H 6 V

Receiver Performance

Sensitivity

Time-To-First-Fix

Horizontal Position Accuracy

Velocity Accuracy

Reacquisition 0.1 second, average

Update Rate 1 Sec / 5 Sec

Maximum Altitude < 18,000 meter

Maximum Velocity < 515 meter/ second

Maximum Acceleration < 4G

Tracking :
Autonomous acquisition :

Cold Start – Autonomous

1

Warm Start – Autonomous

Hot Start – Autonomous

4

Autonomous < 2.5m

Speed

5

Heading

2

3

-163dBm

-160 dBm

< 35s

<15s (with CGEE)

< 35s

< 15s(with CGEE)

< 1s

< 0.01 m/s

< 0.01 degrees

<Note>

1. 50% -130dBm Fu 0.5ppm Tu ±2s Pu 30Km

2. Commanded Warm START

3. Commanded Hot START

4. 50% 24hr static, -130dBm

5. 50% @ 30m/s

Environmental Characteristics

Parameter Min Typ Max Unit

Humidity Range 5 95 % non-condensing
Operation Temperature -40 25 85

Storage Temperature -40 85

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℃
℃

ER-506
High Performance GPS Module

Physical Characteristic

OPERATING Description

GND

This is Ground pin for the baseband circuit.

VIN

This is the main power supply to the engine board. (4.5Vdc to 6.5Vdc)

RXD

This is the main channel for receiving software commands from SiRFdemo software or from your
proprietary software.

TXD

This is the main transmits channel for outputting navigation and measurement data to user’s
navigation software or user written software.

Directive

This pin exports signal to indicate the GPS states.
GPS unfix: always low level.
GPS fixed: one second high level, one second low level.

LED

LED indicator for GPS fix or not fix
LED OFF: Receiver switch off
LED ON: No fixed, Signal searching
LED Flashing: Position Fixed

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ER-506
High Performance GPS Module

SOFTWARE COMMAND

NMEA Output Command

GGA - Global Positioning System Fixed Data

Note – Fields marked in italic red apply only to NMEA version 2.3 (and later) in this NMEA
message description

Table B-2 contains the values for the following example:

$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M,-34.2,M,,0000*18

Table B-2 GGA Data Format

Name Example Units Description

Message ID $GPGGA GGA protocol header

UTC Time 161229.487 hhmmss.sss

Latitude 3723.2475 ddmm.mmmm
N/S Indicator N N=north or S=south

Longitude 12158.3416 dddmm.mmmm

E/W Indicator W E=east or W=west

Position Fix Indicator 1 See Table B-3
Satellites Used 07 Range 0 to 12

HDOP 1.0 Horizontal Dilution of Precision

MSL Altitude 9.0 meters

Units M meters
Geoid Separation1 -34.2 meters Geoid-to-ellipsoid separation.

Ellipsoid altitude=MSL Altitude + Geoid
Separation

Units M meters

Age of Diff. Corr. second Null fields when DGPS is not used

Diff. Ref. Station ID 0000
Checksum *18

<CR><LF> End of message termination

Table B-3 Position Fix Indicator

Value Description
0 Fix not available or invalid

1 GPS SPS Mode, fix valid

2 Differential GPS, SPS Mode , fix valid

3 Not supported

6 Dead Reckoning Mode, fix valid

Note:
A valid status is derived from all the parameters set in the software. This includes the minimum

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