54
Signal Timing
FVAL
B
LVAL
LVAL
DVAL
D
E
F
A
C
H
G
Description
Value
A
The time of FVAL High
depends on line numbers
B
The time from the rising edge of FVAL to the
rising edge of LVAL
0
C
The time of LVAL High
depends on the CL TAP
Format and pixel per line
D
The time of LVAL Low
4 * clock cycle
E
The time from the falling edge of LVAL to the
falling edge of FVAL
0
F
The time of FVAL Low
64 * clock cycle
G
The time from the rising edge of LVAL to the
rising edge of DVAL
0
H
The time of DVAL High
DVAL = LVAL
Notice
Depending on the used frame grabber, the frame may flicker if the values for the camera
features
CLLVALLowTime
(
D
) and
CLFVALLowTime
(
F
) are set at an unfavorable level.
Increase the values.
The change can cause a slight reduction in the frame rate. Ask the manufacturer of the
frame grabber for the optimal values.
