USGlobalsat EB-5635RE User Manual

2012/7/30

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GLOBALSAT GPS Engine Board

Hardware Data Sheet

Product No : EB-5365RE

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

2012/6/29

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2012/7/30

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Product Description

Product Description

EB-5365RE 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-5365RE 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/I2C interface( Default UART)
 Built-in LNA(with in CHIP)
 Compact size (16.2mm X 12.2mm 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

1,2,7,8,14,15,16,

17

NC

Reverse PIN, just NC

3

TIMEMARK

O

One pulse per second output.(1PPS)

4

GPIO

I/O

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

1

5

WAKE_UP

O

System power on, 1.8V output.

3

6

ON_OFF

I

ON_OFF pin is used to command the
EB-5365RE to turn on or off

2

9

VCC_RF

P

Supply Antenna Bias voltage (V=VCC)

10,12,13,24

GND

P

Ground.

11

RF IN

RF

GPS antenna input

18

DR_I2C_DIO

I/O

DR I2C Interface.
Support MEMS Sensor , 1.8V Level

4

19

DR_I2C_CLK

I/O

20

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.

21

RXD

I

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

1

22

VBAT

P

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

23

VCC

P

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

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

Main power supply Current

35

38

45

GPS is 3D Fixed.

mA

RF POWER Supply

VCC

V RF Input

Input Impedance

50

Ω Operating Frequency

1.575

GHz

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

<Note>

1. GPIO is 1.8V Level

2. The ON_OFF pin commands the EB-5365RE 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-5365RE used to enable an external PMIC. A low
on this output indicates that the EB-5365RE 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-5365RE 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-5365RE.

4. The DR mode I2C interface provides support for dead reckoning (DR) and code upload. The
port has 2 pins, DR_DIO and DR_CLK, both pins are pseudo open-drain and require pull-up
resistors on the external bus.

Electrical Specification

Absolute Maximums Ratings

DC Electrical characteristics

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

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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

Parameter

Min

Typ

Max

Unit

Humidity Range

5 95

% non-condensing

Operation Temperature

-40

85

℃

Storage Temperature

-40

85

℃

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

Environmental Characteristics

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Type

24-pin stamp holes

Dimensions

16.2mm X 12.2mm X 2.7mm (±0.2mm)

Package Dimensions

Unit: mm

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M1
EB-5365RE

NC

1

NC

2

TIMEMARK

3

GPIO

4

WAKE_UP

5

ON_OFF

6

NC

7

NC

8

VCC_RF

9

GND

10

RF_IN

11

GND

12

GND

13

NC

14

NC

15

NC

16

NC

17

DR_I2C_DIO

18

DR_I2C_CLK

19

TXD

20

RXD

21

VBAT

22

VCC

23

GND

24

R3

2K2/NCR42K2/NC

1V81V8

DR_I2C_DIO

RD_I2C_CLKON_OFF

WAKE_UP

GPIO

L2
CHOKE RF

GPS_3V3

R1

10K

1PPS OUTPUT

VBAT

GPS_ANTENNA

1

C9
CAP NP

C8
CAP NP

C10
10UF

C7
10UF

3V3

50ohm LINE

TXA

RXA

R2

10K/NC

12

L5
33N/NC

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)

NOTE

1. TIMEMARK: One pulse per second output. When EB-5365RE is 3D Fixed, this pin will output
1uS Hi level pulse. If don’t use this, just NC.

2. 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.

3. WAKE_UP: EB-5365RE power on, WAKE_UP will output 1.8V.

4. ON_OFF: This pin is controlled EB-5365RE power on. If EB-5365RE want to EB-365 pin to pin
compactable, please ON_OFF connect to WAKE_UP. If don’t use this, just NC.

5. 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.

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

7. EB-5365RE RF is has 3.3V external POWER to active ANTENNA use.

OPERATING Description

NC

EB-5365RE reserves pin, Just NC.

TIMEMARK

This pin provides one pulse-per-second
output from the board, which is synchronized
to GPS time. This is not available in Trickle
Power mode

. If do not use it, Just NC.

GPIO

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

Wake Up

System power controller, when EB-5365RE

Power ON, this pin will output 1.8Vdc.

ON_OFF

The ON_OFF pin commands the EB-5365RE
ON or OFF. There are multiple methods of
connecting this pin for different applications
in order to minimize host resource
requirements.
The ON_OFF pin is used to command the
EB-5365RE to turn on or off:
 The turn on command is a hardware

feature of the Power Control FSM based
on 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. (Not currently

can poll the status or set-up an interrupt.

VCC_RF

VCC_RF can supply Active Antenna Bias
voltage (3.3V). This pin will supply Active
Antenna. If do not use it, Just NC.

GND

This is Ground pin for the baseband circuit.

RF_IN

This pin receives signal of GPS analog via
external active antenna. It has to be a
controlled impedance trace at 50ohm. Do not
have RF traces closed the other signal path
and routing it on the top layer. Keep the RF
traces as short as possible.

DR I2C Interface

The I²C host port interface supports:
Operation up to 400kbps
Individual transmit and receive FIFO lengths of
64B

■ The default I

2

C address values are:

Rx: 0x60

Tx: 0x62
Multi-master I²C mode is supported by default.
Dead reckoning applications support the 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.

supported.)
The ON_OFF pin processing is carried out by
the Power Control FSM. The ON_OFF rising
edge event during low power modes is
recorded in a status register that is
subsequently read by the processor once it is
running. When the processor is running at
the time of an ON_OFF event, the processor

DR I²C interface supports:
Typical data lengths (command + in/data out)
of several bytes
Standard I²C bus maximum data rate 400kbps
Minimum data rate 100kbps