W2SG0084i-T Wi2Wi, W2SG0084i-T Datasheet - Page 18

• Manufacturer Part Number: W2SG0084i-T
• Description: GPS Modules GPS SiRFstar IV Module SMD
• Manufacturer: Wi2Wi

Specifications of W2SG0084i-T

• Rohs: yes
• Frequency Band: 1.575 GHz
• Number Of Channels: 48
• Time To First Fix (cold Start): 45 s
• Acquisition Sensitivity: - 148 dBm
• Horizontal Position Accuracy: 5 m
• Operating Supply Voltage: 1.8 V, 3.3 V
• Operating Supply Current: 50 ma
• Interface Type: UART
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Dimensions: 11.2 mm x 12 mm x 2.5 mm
• Minimum Operating Temperature: - 40 C

7.1
7.1.1
The average Time to First Fix (TTFF) for the W2SG0084i when integrated with the W2SG0084i-DEV
Development System is presented in
Hot Start – Typ. @ -140 dBm
Hot Start – Low @ - 146 dBm
Hot Start – Weak @ - 150 dBm
Cold Start @ -140 dBm
Cold Start @ -140 dBm
Cold Start @ -146 dBm
Cold Start @ -150 dBm
Notes:
1
2
7.1.2
Table 8
W2SG0084i-DEV Development System.
Horizontal Position Accuracy: CEP (50%)
Horizontal Position Accuracy: 2dRMS (95%)
Vertical Position Accuracy: CEP (50%)
Vertical Position Accuracy: 2dRMS (95%)
Horizontal Velocity Accuracy: Deviation
Vertical Velocity Accuracy: Deviation
Notes:
1
2
3
WAAS SBAS must be enabled
Stationary receiver, unless otherwise specified.
All parameters are at TA = 25C°, unless otherwise specified.
Stationary receiver in the Open Sky at -130dBm, unless otherwise specified.
All parameters are at TA = 25C°, unless otherwise specified.
Performance
Acquisition Time:
Position Accuracy (3-D NAV):
below presents the Positional Accuracy for the W2SG0084i when integrated with the
Parameter
1
Parameter
Table 7: Average Time to First Fix
Table 7
Table 8: Positional Accuracy
Copyright © 2011 Wi2Wi, Inc.
3
3
TTFF
TTFF
TTFF
TTFF
TTFF
TTFF
3
TTFF
Symbol
1
3
3
3
below:
WEAK
LOW
CLD
CLD
CLD
CLD
TYP
Min
-
-
-
-
-
-
-
Typ.
Datasheet, GPS Module– W2SG0084i
0.7
1.0
2.0
35
37
38
45
Dated: November 11, 2011
Max.
Typ.
0.8
0.4
-
-
-
-
-
-
-
3
5
3
5
Units
s
s
s
s
s
s
s
Units
m/s
m/s
18
m
m
m
m