Planar EL320.256-FD7 User Manual
EL320.256-FD7 Operations Manual (020-0353-00A)
8
Table 4. Timing Characteristics.
Description Min
Max
Unit
Note
T1 Vertical Front Porch
60
µs
1
T2 VS HIGH/LOW time
1
tVCLK
2
T3 Vertical Blank
40
µs
T4 Vertical Period
256
tHS
VS frequency
120
Hz
Description Min
Typ
Unit
Note
T5 HS setup to VS
1
µs
3
T6 HS hold from VS
3
µs
T7 HS Low Time
4
tVCLK
T8 HS High Time
320
320
tVCLK
4
T9 HS period (tHS)
19
µs
Notes:
1. This time is needed to display the last row and to initiate the following
frame.
frame.
2. Only rising edge is used.
3. 2 tVCLK minimum
4. The number of VCLK pulses during HS high time must be even.
Video clock VCLK must be kept running continuously.
Video clock VCLK must be kept running continuously.
Setup and Hold Timing
Figure 4. Setup and Hold Timing.
Table 5. Setup and Hold Timing.
Symbol Description
Min
Max
tSU
HS, VID, TVID setup to VCLK
8ns
tHOLD
HS, VID, TVID hold from VCLK
8ns
tWL
VCLK low width
16ns
tWH
VCLK high width
16ns
tVCLK VCLK
period
40ns
VCLK frequency
25 MHz