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DESCRIPTION
The SG Series GPS receiver module is a self-contained high-performance GPS
receiver with an on-board LNA and SAW filter. Based on the SiRFstar III 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 SG Series receiver can
acquire and track up to 20 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 SG Series GPS modules offer a simple, efficient and costeffective method of adding GPS capabilities to any product.
The Master Development System daughter board contains the surface mount SG
Series GPS module, SMA connector and a ferrite bead (used to supply power to an
external active antenna, such as the Linx UC or SH Series active GPS antennas) on
a single board with through-hole headers. This small board makes prototyping with
the SG Series module very easy.
Revised 10/19/11
SG SERIES MASTER DEVELOPMENT SYSTEM
DAUGHTER BOARD USER’S GUIDE
PART # DESCRIPTION
MDEV-GPS-SG-DB SG Series Master Development System Daughter Board
ORDERING INFORMATION
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Figure 1: MDEV-GPS-SG-DB Pin Assignments
ELECTRICAL SPECIFICATIONS
Figure 3: MDEV-GPS-SG-DB Schematic
SCHEMATIC
Table 1: SG Series Receiver Specifications
Parameter Designation Min. Typical Max. Units Notes
POWER SUPPLY
Supply Voltage V
CC
3.0 – 4.2 VDC 1
Supply Current: I
CC
2
Peak – – 46.0 mA 6
Acquisition – 32 – mA 6
Tracking – 28 –mA6
Standby – 1.5 – mA 6
Backup Battery Voltage V
BAT
1.3 – 6.0 VDC –
Backup Battery Current I
BAT
–10–µA–
2.85V Output Voltage V
OUT
2.79 2.852.91VDC–
2.85V Output Current I
OUT
––30mA3
ANTENNA PORT
RF Input Impedance R
IN
–50–Ω –
ENVIRONMENTAL
Operating Temperature Range – -30 – +85
°C–
Storage Temperature Range – -40 25 +85
°C–
Notes:
1. I
OUT
= 0
2. V
CC
= 3.3V, I
OUT
= 0
3. V
CC
= 3.3V
6. With passive antenna. Active antennas will increase current consumption.
Please see the SG Series GPS Module Data Guide for full specifications,
features and operation instructions.
Figure 2: MDEV-GPS-SG-DB PCB Layout Dimensions
PIN ASSIGNMENTS
PCB LAYOUT
*CAUTION*
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.
The daughter board uses 0.02” diameter round header pins on 0.1” centers.
These headers can be soldered directly to the PCB or plugged into a matching
socket to enable easy removal.
GND
NC
NC
TXM
RXM
1PPS
GPIO0
RFPWRUP
ON_OFF
GND
GND
NC
NC
VCC
NC
VBACKUP
NC
NC
NC
GND
1.20”
1.10”
(27.94)
0.10”
(2.54)
(47.24)
1.00”
(25.40)
Ø0.04” x 10
(1.02)
0.10”
(2.54)
0.10”
(2.54)
1
2
3
J1
1
2
3
4
5
6
7
8
9
10
GND
GND
GND
4
5
21
6
7
8
9
U1
RXB
TXB
1PPS
TXA
RXA
GND
GPIO10
LCKIND
GPIO1
RRPWRUP
ON_OFF10VBACKUP
RXM-GPS-SG
BOOTSEL
GPIO13
GPIO15
GPIO14
VOUT
GND
RFIN
GND
GND
VIN
20
19
18
17
L1
300ohm BEAD
16
22
15
14
13
12
11
GND
GND
GND
GND
GND
CONREVSMA001
ANT1
RF
GND
GND
J2
1
2
3
4
5
6
7
8
9
10
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LINX TECHNOLOGIES
159 ORT LANE
MERLIN, OR 97532
PHONE: (541) 471-6256
FAX: (541) 471-6251
www.linxtechnologies.com
U.S. CORPORATE HEADQUARTERS
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.
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CUSTOMER'S INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY FROM ANY DEFECTIVE
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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
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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.
Disclaimer
© 2011 by Linx Technologies. The stylized Linx logo, Linx,
“Wireless Made Simple”, CipherLinx, and the stylized CL
logo are the trademarks of Linx Technologies, Inc.
Printed in U.S.A.
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