Globalsat MR-332 [4/8] Electrical specification
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Globalsat MR-332 [4/8] Electrical specification

Globalsat MR-332 [4/8] Electrical specification
MR-332(SMA)
High Performance GPS Engine Board
- 4 -
Electrical Specification
Absolute Maximums Ratings
Parameter Min. Typ. Max. Conditions Unit
Power
Power supply voltage(VCC) 3.8 5.0 5.5 V
Backup battery supply 3.3 3.6 V
Main power supply Current 25 5V mA
Backup battery supply Current 4.5 5 5.5 3.3V uA
SMA Connector
Input Impedance 50 Ω
Operating Frequency 1.575 GHz
RF Output Power 3.3 V
DC Electrical characteristics
Parameter Symbol Min. Typ.
Max. Conditions Units
I/O
Low Level Output Voltage VOL 0.42 V
I/O
High Level Output Voltage
VOH 2.38 V
I/O
Low Level Input Voltage VI L -0.3 0.7 V
I/O
High Level Input Voltage VI H 2.1 3.6 V
RS-232 Receiver/Transmitter characteristics
Parameter Min. Typ.
Max. Conditions Units
-232 Input Voltage Range -30 +30 V
-232 Input Threshold Low 0.6 1.2 V
-232 Input Threshold High 1.6 2.4 V
Output Voltage Swing
±5.0 ±5.2
V
Environmental Characteristics
Parameter Min Typ Max Unit
Humidity Range 5 95 % non-condensing
Operation Temperature -40 25 85
℃
Storage Temperature -40 85
℃

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