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1. GPIO is 1.8V Level
2. The ON_OFF pin commands the EB-5318RF ON or OFF. The turn ON command is a
hardware feature of the Power Control FSM when sensing a rising edge on the pin. The turn
OFF command is a software feature based on interrupts related to rising and/or falling edges
and/or sensing of pin levels.
3. The WAKE_UP pin is an output from the EB-5318RF used to enable an external PMIC. A low
on this output indicates that the EB-5318RF is in one of its low-power states (KA-only,
Hibernate, or Standby mode) and requires no more than 60µA of current on the VIO_18 input.
A high on this output indicates that the EB-5318RF is in operational mode requiring an external
regulator to provide enough current on both the VIO_18 and VREG_18 inputs to handle the
peak current requirements of the EB-5318RF
4. The DR mode I2C interface provides support for dead reckoning (DR) and code upload. The
port has 2 pins, DR_DIO and DR_CLK, both pins are pseudo open-drain and require pull-up
resistors on the external bus.
Electrical Specification
Absolute Maximums Ratings
Parameter
POWER Supply
Main power supply(VCC)
Backup battery supply
Main power supply Current
RF POWER Supply
RF Input
Input Impedance
Operating Frequency
DC Electrical characteristics
Parameter
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
High Level Output Current
Low Level Output Current
Vgcc is SiRF Star IV Chip power input, 1.8V Vin.
2012/8/31
Min.
Typ.
3.1
2.0
45
35
VCC
1.575
Symbol
Min.
V
0.7*VCC
I H
V
-0.4
I L
V
0.75*Vgcc
OH
V
OL
I
OH
I
OL
4
.
Max.
3.3
3.5
3.5
50
55
GPS is not 3D Fixed.
38
45
GPS is 3D Fixed.
50
Typ.
Max.
3.6
0.45
Vgcc
0.4
2
2
Conditions
Unit
mA
mA
Ghz
Conditions
Units
mA
mA
V
V
V
Ω
V
V
V
V
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