ASY-MDEV-GPS-SG-DB Linx Technologies

SG SERIES MASTER DEVELOPMENT SYSTEM DAUGHTER BOARD USERS GUIDE 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 modules 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 modules 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 cost- effective 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. ORDERING INFORMATION PART DESCRIPTION ASY-MDEV-GPS-SG-DB SG Series Master Development System Daughter Board Revised 2/14/12ELECTRICAL SPECIFICATIONS PCB LAYOUT 1.20 Parameter Designation Min. Typical Max. Units Notes (47.24) POWER SUPPLY 0.04 x 10 Supply Voltage V 3.0 4.2 VDC 1 (1.02) CC Supply Current: I 2 CC Peak 46.0 mA 6 0.10 (2.54) Acquisition 32 mA 6 1.10 Tracking 28 mA 6 (27.94) Standby 1.5 mA 6 Backup Battery Voltage V 1.3 6.0 VDC BAT Backup Battery Current I 10 A BAT 0.10 2.85V Output Voltage V 2.79 2.852.91 VDC OUT (2.54) 2.85V Output Current I 30 mA 3 OUT 1.00 ANTENNA PORT 0.10 (25.40) RF Input Impedance R 50 (2.54) IN ENVIRONMENTAL Figure 2: MDEV-GPS-SG-DB PCB Layout Dimensions Operating Temperature Range -30 +85 C Storage Temperature Range -40 25 +85 C 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 Table 1: SG Series Receiver Specifications socket to enable easy removal. Notes: 1. I = 0 OUT 2. V = 3.3V, I = 0 CC OUT 3. V = 3.3V CC 6. With passive antenna. Active antennas will increase current consumption. SCHEMATIC Please see the SG Series GPS Module Data Guide for full specifications, U1 features and operation instructions. 1 20 ANT1 RXB GND GND CONREVSMA001 2 19 TXB RFIN RF *CAUTION* 3 18 This product incorporates numerous static-sensitive components. 1PPS GND GND Always wear an ESD wrist strap and observe proper ESD handling J1 4 17 TXA VOUT L1 procedures when working with this device. Failure to observe this 1 GND 5 16 300ohm BEAD precaution may result in module damage or failure. 2 RXA BOOTSEL 3 21 22 GND 4 GND GND GND GND 5 PIN ASSIGNMENTS 6 15 6 GPIO10 GPIO13 7 7 14 J2 8 LCKIND GPIO15 9 GND 1 8 13 GND GND 10 GPIO1 GPIO14 2 3 NC NC 9 12 RRPWRUP VIN 4 NC NC GND 5 10 11 TXM VCC ON OFF VBACKUP 6 7 RXM NC RXM-GPS-SG 8 1PPS VBACKUP 9 GPIO0 NC GND 10 RFPWRUP NC ON OFF NC Figure 3: MDEV-GPS-SG-DB Schematic GND GND Figure 1: MDEV-GPS-SG-DB Pin Assignments Page 2 Page 3 GND