OEM628 Technical Specifications
Appendix D
OEM6 Family Installation and Operation User Manual Rev 12
153
Table 30: OEM628 Strobes
Table 31: OEM628 Strobe Electrical Specifications
Strobes
Default
Behavior
Input/
Output
Factory
Default
Comment
a
a. The commands and logs shown in capital letters (for example, MARKCONTROL) are discussed in further detail in
OEM6 Family Firmware Reference Manual
(OM-20000129).
Event1
Dedicated
pin
Input
Leading
edge
triggered
Active low
An input mark for which a pulse greater than 150 ns
triggers certain logs to be generated. (Refer to the
MARKPOS and MARKTIME logs and ONMARK trigger.)
Polarity is configurable using the
MARKCONTROL
command.
Event2
(Mark 2)
Multiplexed
pin
Input
Leading
edge
triggered
Active low
An input mark for which a pulse greater than 150 ns
triggers certain logs to be generated. (Refer to the
MARK2POS and MARK2TIME logs.) Polarity is
configurable using the
MARKCONTROL
command.
PV
(Position
Valid)
Dedicated
pin
Output
Active
high
Indicates a valid GNSS position solution is available.
VARF
(Variable
Frequency)
Dedicated
pin
Output
Active low
A programmable variable frequency output ranging from
0 – 100 MHz (refer to the
FREQUENCYOUT
command)
RESETIN
Dedicated
pin
Input
Active low
Reset LVTTL signal input from external system; active
low, 50 ms duration. Hold the RESETIN pin low for >150
ms after power is applied
PPS
Dedicated
pin
Output
Active low
A time synchronization output. This is a pulse where the
leading edge is synchronized to receiver calculated
GNSS Time. The polarity, period and pulse width can be
configured using
PPSCONTROL
command
Strobe
Sym
Min
(V)
Typ
(V)
Max
(V)
Current
(mA)
Conditions
Event1 (Mark 1)
Event2 (Mark2)
V
IL
0.8
VCC = 3.3 V compatible; 85
C
V
IH
2.0
PPS
PV
VARF
V
OL
0.55
24
VCC = 3.3 V; 85
C
V
OH
2.3
24
RESETIN
V
IL
0.8
V
IH
2.0