–

–

–

–

2

3

Ordering Information

Ordering Information

Part Number

Description

RXM-GPS-R4-x

R4 Series GPS Receiver Module

MDEV-GPS-R4

R4 Series GPS Receiver Master Development System

EVM-GPS-R4

R4 Series GPS Receiver Evaluation Module

x = “T” for Tape and Reel, “B” for Bulk

Reels are 1,000 pieces

Quantities less than 1,000 pieces are supplied in bulk

Figure 2: Ordering Information

Figure 4: Figure 3: Electrical Specifications

Absolute Maximum Ratings

Supply Voltage V

CC

+4.3

VDC

Input Battery Backup Voltage

+7.0

VDC

Operating Temperature

−40

to

+85

ºC

Storage Temperature

−40

to

+85

ºC

Soldering Temperature

+225°C for 10 seconds

Exceeding any of the limits of this section may lead to permanent damage to the

device. Furthermore, extended operation at these maximum ratings may reduce

the life of this device.

Absolute Maximum Ratings

Figure 3: Absolute Maximum Ratings

R4 Series GPS Receiver Specifications

Parameter

Symbol

Min.

Typ.

Max.

Units Notes

Power Supply

Operating Voltage

V

CC

3.0

3.3

3.6

VDC

Supply Current

l

CC

Peak

122

mA

1

Acquisition

56

mA

1

Tracking

33

mA

1

Hibernate

0.43

mA

1

Backup Battery Voltage

V

BAT

2.0

6.0

VDC

Backup Battery Current

I

BAT

660

830

µA

2

VOUT Output Voltage

V

OUT

VCC

3

Output Low Voltage

V

OL

0.4

VDC

Electrical Specifications

Output High Voltage

V

OH

TX Pin

0.7*VCC

VCC

VCC

VDC

1.8V Level Pin

1.2

1.8

1.85

VDC

Output Low Current

I

OL

2.0

mA

Output High Current

I

OH

TX Pin

0.05

mA

1.8V Level Pin

2.0

mA

Input Low Voltage

V

IL

–0.4

0.45

VDC

Input High Voltage

V

IH

1.3

3.6

VDC

LNA Section

Input Power

P

IN

18

dB

Receiver Section

Receiver Sensitivity

Tracking

–160

dBm

Navigation

–157

dBm

Cold Start

–145

dBm

Acquisition Time

Hot Start (Open Sky)

1

s

Hot Start (Indoor)

15

s

Cold Start

32

s

Cold Start, CGEE

15

s

Position Accuracy

Autonomous

2.5

m

SBAS

2.5

m

Altitude

18,000

m

Velocity

515

m/s

Chipset

SiRF Star IV, GSD4e ROM

Frequency

L1 1575.42MHz, C/A Code

Channels

48

Update Rate

1Hz default, up to 5Hz

Protocol Support

NMEA 0183 ver 3.0, SiRF Binary

Antenna Port

RF Impedance

R

IN

50

Ω

1.

VCC = 3.3V, without active antenna

2.

VCC = 0V

3.

VOUT current is directly sourced from VCC.