USGlobalsat EB-5631RE User Manual

2012/7/30

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GLOBALSAT GPS Engine Board

Hardware Data Sheet

Product No : EB-5631RE

Version 1.2

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

2012/7/30

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2012/7/30

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Product Description

Product Description

EB-5631RE 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. EB-5631RE is suitable for the following applications:

 Automotive navigation
 Personal positioning
 Fleet management
 Mobile phone navigation
 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 UART interface
 Built-in LNA(with in CHIP)
 Compact size (15.9mm x 13.1 mm x 2.7mm) suitable for space-sensitive application
 One size component, easy to mount on another PCB board
 Support NMEA 0183 V3.0 (GGA, GSA, GSV, RMC, VTG, GLL, ZDA)
 Support OSP protocol
 MEMS Support : 3-axis Magnetometer for compass heading for “Point and Tell” feature
 MicroPower Mode(MPM) : Reduce MPM current consumption from <500 uA to < 125 uA
 Support SBAS (WASS, EGNOS, MSAS, GAGAN)

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PIN Number(s)

Name

Type

Description

Note

1

RF IN

RF

GPS antenna input

2,3,4,6,8,9,10,12
14,15,17,19,21,
22,23,24,26,28,
29,33,35,36

GND

P

Ground.

5

VBAT

P

This is the battery backup power input for
the SRAM and RTC when main power is
removed.

7,32,34,16

NC

NC

11

VCC

P

This is the main power supply to the engine
board. (3.1Vdc to 3.5Vdc)

13

RESET

I

This input is low active.

18

GPIO

I/O

User can use this I/O pin for special
functions. (For example, control LED)

1

20

TIMEMARK

O

One pulse per second output.(1PPS)

25

ON_OFF

I

ON_OFF pin is used to command the
EB-5631RE to turn on or off

2

27

WAKE_UP

O

System power on, 1.8V output .

3

30

TXD

O

This is the main transmits channel for
outputting navigation and measurement

data to user’s navigation software or user

written software. Output TTL level.

31

RXD

I

This is the main receive channel for
receiving software commands to the engine
board from SiRFDemo software or from user
written software.

Product Pin Description

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Parameter

Min.

Typ.

Max.

Conditions

Unit

POWER Supply

Main power supply(VCC)

3.1

3.3

3.5

V Backup battery supply

2.0

3.5

V Main power supply Current

45

50

55

GPS is not 3D Fixed.

mA

Backup battery supply Current

35

38

45

GPS is 3D Fixed.

uA

RF POWER Supply

VCC

V

RF Input

Input Impedance

50

Ω Operating Frequency

1.575

GHz

<Note>

1. GPIO is 1.8V Level

2. The ON_OFF pin commands the EB-5631RE ON or OFF. The turn ON command is a
hardware feature of the Power Control FSM when sensing a rising edge on the pin. The turn
OFF command is a software feature based on interrupts related to rising and/or falling edges
and/or sensing of pin levels.

3. The WAKE_UP pin is an output from the EB-5631RE used to enable an external PMIC. A low
on this output indicates that the EB-5631RE is in one of its low-power states (KA-only,
Hibernate, or Standby mode) and requires no more than 60μA of current on the VIO_18 input.
A high on this output indicates that the EB-5631RE is in operational mode requiring an
external regulator to provide enough current on both the VIO_18 and VREG_18 inputs to
handle the peak current requirements of the EB-5631RE.

Electrical Specification

Absolute Maximums Ratings

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Parameter

Symbol

Min.

Typ.

Max.

Conditions

Units

VI H

0.7*VCC

3.6

V

VI L

-0.4

0.45

V

VOH

0.75*Vgcc

Vgcc

V

VOL

0.4

V

IOH

2

mA

IOL

2

mA

Sensitivity

Tracking :
Autonomous acquisition :

-163dBm

-160 dBm

Time-To-First-Fix

1

Cold Start – Autonomous
< 35s

<15s (with CGEE)

Warm Start – Autonomous

2

< 35s

< 15s(with CGEE)

Hot Start – Autonomous

3

< 1s

Horizontal Position Accuracy

4

Autonomous

< 2.5m

Velocity Accuracy

5

Speed
Heading

< 0.01 m/s
< 0.01 degrees

Reacquisition

0.1 second, average

Update Rate

1 Hz

Maximum Altitude

< 18,000 meter

Maximum Velocity

< 515 meter/ second

Maximum Acceleration

< 4G

DC Electrical characteristics

Vgcc is SiRF Star IV Chip power input, 1.8V Vin.

Receiver Performance

<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

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Parameter

Min

Typ

Max

Unit

Humidity Range

5 95

% non-condensing

Operation Temperature

-40

85

℃

Storage Temperature

-40

85

℃

Type

36-pin stamp holes

Dimensions

15.9 mm * 13.1 mm * 2.7mm ±0.2mm

Environmental Characteristics

Physical Characteristic

Unit: mm

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VBAT

C10
10UF

RESET

GPIO

1PPS OUTPUT

ON_OFF

WAKE_UP

I2C_SDA

I2C_SCL

L5

CHOKE RF

GPS_ANTENNA

1

C11
CAP NP

C12
CAP NP

50ohm LINE

R8

2K2/NCR92K2/NC

1V8 1V8GPS_3V3

RXD
TXD

GPS_3V3

M1
EB-5631RE

RF IN

1

GND

2

GND

3

GND

4

VBAT

5

GND

6

NC

7

GND

8

GND

9

GND

10

VCC

11

GND12RESET13GND14GND15ECLK16GND17GPIO

18

GND

19

TIMEMAEK

20

GND

21

GND

22

GND

23

GND

24

ON_OFF

25

GND

26

WAKE_UP

27

GND

28

GND

29

TXD

30

RXD

31

DR_I2C_DIO

32

GND

33

DR_I2C_CLK

34

GND

35

GND

36

C7
10UF

R2
10K/NC

R7

10K

50 Ohm Micro strip line

Frequency:

1575.42 + 2MHz

Amplifier Gain:

18~22dB Typical

Axial Ratio:

3 dB Typical

Output VSWR:

2.0 Max.

Output Impedance:

50Ω

Noise Figure:

2.0 dB Max

Polarization:

RHCP

Antenna Input Voltage:

3.3V (Typ.)

Application

Application Circuit

GPS Active Antenna Specifications (Recommendation)

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NOTE:

1. RESET: Low Active, when EB-5631RE is accepted this single, EB-5631RE going to Hibernate
mode. If want EB-5631RE up, need input ON_OFF single.

2. TIMEMARK: One pulse per second output. When EB-5631RE is 3D Fixed, this pin will output
1uS Hi level pulse. If don’t use this, just NC.

3. ECLK: ECLK clock input for frequency aiding applications or as a test clock. If don’t use this,
just NC.

4. GPIO: User can use this I/O pin for special functions. For example, control LED, and can be
used External Interrupts. If don’t use this, just NC.

5. WAKE_UP: EB-5631RE power on, WAKE_UP will output 1.8V.

6. ON_OFF: This pin is controlled EB-5631RE power on. If EB-5631RE want to EB-365 pin to pin
compactable, please ON_OFF connect to WAKE_UP. If don’t use this, just NC.

7. DR I2C interface: The I2C interface supports required sensor instruments such as gyros,
accelerometers, compasses or other sensors that can operate with an I2C bus. If don’t use
this, just NC.

8. VBAT: This is the battery backup power input for the SRAM and RTC when main power is
removed. VBAT is 2V ~ 3.5V.

9. EB-5631RE RF is has 3.3V external POWER to active ANTENNA use.