Linx Technologies EVM-GPS-R4 User Manual

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Page 1

R4 Series

Evaluation Module

User's Guide

Page 2

Warning: Some customers may want Linx radio frequency (“RF”)

products to control machinery or devices remotely, including machinery or devices that can cause death, bodily injuries, and/or property damage if improperly or inadvertently triggered, particularly in industrial settings or other applications implicating life-safety concerns (“Life and Property Safety Situations”).

Table of Contents

1 Description 2 Ordering Information 2 Electrical Specications

NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY SITUATIONS. No OEM Linx Remote Control or Function Module

should be modiﬁed for Life and Property Safety Situations. Such modiﬁcation cannot provide sufﬁcient safety and will void the product’s regulatory certiﬁcation and warranty.

Customers may use our (non-Function) Modules, Antenna and Connectors as part of other systems in Life Safety Situations, but only with necessary and industry appropriate redundancies and in compliance with applicable safety standards, including without limitation, ANSI and NFPA standards. It is solely the responsibility of any Linx customer who uses one or more of these products to incorporate appropriate redundancies and safety standards for the Life and Property Safety Situation application.

Do not use this or any Linx product to trigger an action directly from the data line or RSSI lines without a protocol or encoder/ decoder to validate the data. Without validation, any signal from

another unrelated transmitter in the environment received by the module could inadvertently trigger the action.

All RF products are susceptible to RF interference that can prevent communication. RF products without frequency agility or hopping

implemented are more subject to interference. This module does not have a frequency hopping protocol built in.

3 Pin Assignments 3 PCB Layout 3 Schematic

Do not use any Linx product over the limits in this data guide. Excessive voltage or extended operation at the maximum voltage could cause product failure. Exceeding the reﬂow temperature proﬁle could cause product failure which is not immediately evident.

Do not make any physical or electrical modiﬁcations to any Linx product. This will void the warranty and regulatory and UL certiﬁcations

and may cause product failure which is not immediately evident.

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R4 Series GPS Receiver

Evaluation Module

User's Guide

Figure 1: R4 Series Evaluation Module

Description

The R4 Series GPS receiver module is a self-contained high-performance GPS receiver with an on-board LNA and SAW ﬁlter. Based on the SiRFstar IV chipset, it provides exceptional sensitivity, even in dense foliage and urban canyons. The module’s very low power consumption helps maximize runtimes in battery powered applications. With over 200,000 effective correlators, the R4 Series receiver can acquire and track up to 48 satellites simultaneously in just seconds, even at the lowest signal levels. These features, along with the module’s standard NMEA data output, make it easy to integrate, even by engineers without previous RF or GPS experience. The Linx R4 Series GPS modules offer a simple, efﬁcient and cost-effective method of adding GPS capabilities to any product.

The evaluation module contains the surface mount R4 Series GPS module, SMA connector and a ferrite bead (used to supply power to an external active antenna, such as the Linx SH Series active GPS antenna) on a single board with through-hole headers. This small board makes prototyping with the R4 Series module very easy.

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Revised 5/6/2015

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Ordering Information

1.20”

Pin Assignments

Ordering Information

Part Number Description

EVM-GPS-R4 R4 Series Evaluation Module

RXM-GPS-R4 R4 Series GPS Receiver Module

Figure 2: Ordering Information

Electrical Specications

Ordering Information

Parameter Designation Min. Typ. Max. Units Notes

POWER SUPPLY

Supply Voltage V

Supply Current I

Peak 122 mA 1

Acquisition 56 mA 1

Tracking 33 mA 1

Hibernate 0.43 mA 1

Backup Battery Voltage V

Backup Battery Current I

2.85V Output Voltage V

2.85V Output Current I

BAT

OUT

ANTENNA PORT

RF Input Impedance R

ENVIRONMENTAL

Operating Temperature Range –40 +85 °C

Storage Temperature Range –40 +85 °C

Notes:

1. VCC = 3.3V, without active antenna

2. VCC = 0V

Figure 3: Electrical Speciﬁcations

Warning: This product incorporates numerous static-sensitive

components. Always wear an ESD wrist strap and observe proper ESD handling procedures when working with this device. Failure to observe this precaution may result in module damage or failure.

3.0 3.3 3.6 VDC

2.0 VDC

660 830 µA 2

VDC

2 mA

50 Ω

PCB Layout

Schematic

1 2 3 4 5 6 7 8 9 10

GND

Figure 6: EVM-GPS-R4 Schematic

GND

NC NC

TXM

RXM

1PPS

RESET

RFPWRUP

ON_OFF

GND

Figure 4: EVM-GPS-R4 Pin Assignments

(47.24)

1.10”

(27.94)

0.10”

(2.54)

1.00”

(25.40)

Figure 5: EVM-GPS-R4 PCB Layout Dimensions

GND

1PPS

TXM

RXM

GND GND

GND

RESET

RRPWRUP

ON_OFF10VBACKUP

RXM-GPS-R4

GND

RFIN

GND

VOUT

GND

VIN

GND NC NC VCC NC VBACKUP NC NC NC GND

Ø0.04” x 10

(1.02)

0.10”

(2.54)

0.10”

(2.54)

GND

L1 300ohm BEAD

ANT1

CONREVSMA001

GND

1 2 3 4 5 6 7 8 9 10

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2 3

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Linx Technologies

159 Ort Lane

Merlin, OR, US 97532

Phone: +1 541 471 6256

Fax: +1 541 471 6251

www.linxtechnologies.com

Disclaimer

Linx Technologies is continually striving to improve the quality and function of its products. For this reason, we reserve the right to make changes to our products without notice. The information contained in this Data Guide is believed to be accurate as of the time of publication. Speciﬁcations are based on representative lot samples. Values may vary from lot-to-lot and are not guaranteed. “Typical” parameters can and do vary over lots and application. Linx Technologies makes no guarantee, warranty, or representation regarding the suitability of any product for use in any speciﬁc application. It is the customer’s responsibility to verify the suitability of the part for the intended application. NO LINX PRODUCT IS INTENDED FOR USE IN ANY APPLICATION WHERE THE SAFETY

OF LIFE OR PROPERTY IS AT RISK.

Linx Technologies DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL LINX TECHNOLOGIES BE LIABLE FOR ANY OF CUSTOMER’S INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY FROM ANY DEFECTIVE OR NON-CONFORMING PRODUCTS OR FOR ANY OTHER BREACH OF CONTRACT BY LINX TECHNOLOGIES. The limitations on Linx Technologies’

liability are applicable to any and all claims or theories of recovery asserted by Customer, including, without limitation, breach of contract, breach of warranty, strict liability, or negligence. Customer assumes all liability (including, without limitation, liability for injury to person or property, economic loss, or business interruption) for all claims, including claims from third parties, arising from the use of the Products. The Customer will indemnify, defend, protect, and hold harmless Linx Technologies and its ofﬁcers, employees, subsidiaries, afﬁliates, distributors, and representatives from and against all claims, damages, actions, suits, proceedings, demands, assessments, adjustments, costs, and expenses incurred by Linx Technologies as a result of or arising from any Products sold by Linx Technologies to Customer. Under no conditions will Linx Technologies be responsible for losses arising from the use or failure of the device in any application, other than the repair, replacement, or refund limited to the original product purchase price. Devices described in this publication may contain proprietary, patented, or copyrighted techniques, components, or materials. Under no circumstances shall any user be conveyed any license or right to the use or ownership of such items.

The stylized Linx logo, Wireless Made Simple, WiSE, CipherLinx and the stylized CL logo are trademarks of Linx Technologies.