ER-506
High Performance GPS Module
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Product Pin Description
PIN Number(s)
Name
Type
Description
Note
1,5
GND
P
Ground.
2
VIN
P
This is the main power supply to the engine
board. (4.5Vdc to 6.5Vdc)
3
RXD
I
This is the main receive channel for
receiving software commands to the engine
board from SiRFdemo software or from user
written software. Baud rate based on flash
memory setting.
4
TXD
O
This is the main transmits channel for
outputting navigation and measurement
data to user’s navigation software or user
written software.
6
Directive
O
This pin indicates the GPS states.
Electrical Specification
Absolute Maximums Ratings
Parameter
Min.
Typ.
Max.
Conditions
Unit
POWER Supply
Main power supply(VCC)
4.5
5.0
6.5
V
45
50
55
GPS is not 3D Fixed.
mA
Main power supply Current
33
34
38
GPS is 3D Fixed.
mA
RF
Input Impendance
50
Ω
Operating Frequency
1.575
Ghz
