W2SG0006-006 Wi2Wi, W2SG0006-006 Datasheet - Page 11

• Manufacturer Part Number: W2SG0006-006
• Description: GPS Modules & Development Tools 9600bps/NMEAOutput- GGAGSARMCGSV-1Hz
• Manufacturer: Wi2Wi
• Type: GPS Moduler

Specifications of W2SG0006-006

• Operating Voltage: 3.3 VDC
• Operating Current: 47 mA
• Frequency Range: 1.57542 GHz
• Interface Type: UART
• Operating Temperature Range: - 30 C to + 85 C
• For Use With/related Products: W2SG0006-DEV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.9
The W2SG0006 provides backup-cell option to the user. Figure 4 shows recommended connections for backup
cell (pin #14) and main battery (pin #19 and pin #4). The minimum voltage for the backup-cell pin is 2.0V.
3.10 Flash Enable/Firmware Upgrade Implementation
The W2SG0006 Firmware is capable of being programmed or upgraded via the UART port A (Pins 16 and 17).
Please note that this cannot be accomplished from UART port B. This is accomplished using the SiRFFlash™
tool available to SiRF licensed developers. To enable the module to be programmed, 3.3VDC must be applied to
the FLASH_ENABLE (Pin 6). Figure 5 illustrates Flash Enable/Firmware upgrade implementation. Note: The
W2SG0006 will not operate as a GPS receiver while 3.3VDC is applied to the FLASH_ENABLE pin.
Backup Cell and Main Battery Implementation
To PIN 4 & 19
BACKUP CELL
To PIN 14
VDD_3V3
Figure 4: Battery and Backup Cell Connections
Figure 5: Flash Enabling for Programming
Vswitched
Vunswitched
or
Copyright © 2009 Wi2Wi, Inc.
NOTE: Vunsw itched<3.6V IS AN ALWAYS
'ON' AND PRESENT SUPPLY THAT CANNOT
EXCEED ~3.6V, BUT MUST ALSO BE HIGH
ENOUGH POTENTIAL TO ENABLE THE
VDD_BB REGULATOR VIA nWAKEUP. USE
OF A LOW Iq CURRENT ZENER OR EQUIV
COULD BE CONSIDERED FOR THIS SUPPLY.
TYP
Vunswitched<3.6V
BACKUP
CELL
Vswitched
BATTERY SUPPLY
OPTIONAL RES
OR DIODE
Wi2Wi, Inc. Doc No. A06-PDT-DOC Rev.1.64
MAIN
BAT
Datasheet, GPS Module– W2SG0006
Page 11 of 20
Dated: July 10, 2009