A2200-A Maestro Wireless Solutions, A2200-A Datasheet - Page 32

• Manufacturer Part Number: A2200-A
• Description: GPS Modules SiRF Star IV GPS receiver SMT ROM mod
• Manufacturer: Maestro Wireless Solutions

Specifications of A2200-A

• Rohs: yes
• Frequency Band: 1.575 GHz
• Number Of Channels: 48
• Time To First Fix (cold Start): 35 s
• Acquisition Sensitivity: 163 dBm
• Horizontal Position Accuracy: 2.5 m
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Supply Current: 50 uA
• Interface Type: I2C
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Dimensions: 14 mm x 10.2 mm x 2.5 mm

10.8 VANT Pin
The VANT pin is an input pin.
The supply voltage for an active GPS antenna on the ANT input has to be fed into the
Vant pin. The easiest way to do that is to connect Vcc to VANT. The maximum cur-
rent is 50 mA.
Note: Shortcut between ANT and GND may damage the A2200-A GPS receiver
module. This should be avoided by using an antenna current limiter.
The circuit (chapter “10.7.2 Antenna Sensor with Current Limiter”) works for Vcc from
3V to 5V. The antenna current will be limited to 50 mA approximately.
If other transistors are used, other resistor values may be necessary as well. We
strongly recommend simulating and testing your realized version before using it.
V1.0 – Feb-12
User’s Manual
Page 32 of 35