OEM6 Family Installation and Operation User Manual Rev 7
129
Table 23: OEM628 Strobes
Table 24: OEM628 Strobe Electrical Specifications
Strobes
Default
Behavior
Input/
Output
Factory
Default
Comment
a
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. The mark inputs have 10K pull-up resistors to
3.3 V
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. The
mark inputs have 10K pull-up resistors to 3.3 V
PV
(Position
Valid)
Dedicated
pin
Output
Active
high
Indicates a valid GNSS position solution is available. A high
level indicates a valid solution or that the
FIX POSITION
command has been set. VDD is 3.3 V
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
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
a. The commands and logs shown in capital letters (for example, MARKCONTROL) are discussed in further
OEM6 Family Firmware Reference Manual
(OM-20000129).
Strobe
Sym
Min
(V)
Typ
(V)
Max
(V)
Current
(mA)
Conditions
Event1 (Mark 1)
Event2 (Mark2)
PPS
V
IL
0.8
VCC = 2.7 V; 85
C
V
IH
2.0
VCC = 2.7 V; 85
C
PV
VARF
V
OL
0.4
24
VCC = 2.7 V; 85
C
V
OH
3.0
24
VCC = 2.7V; 85
C
RESETIN
V
IL
0.8
VCC = 2.7 V; 85
C
V
IH
2.3
VCC = 2.7 V; 85
C