Video Mode Timing—SGD Video Mode
Item Description Min.
Max.
Units
1
HS high time
30
nsec
2
Last VCLK fall to HS fall
20
nsec
3
HS to VCLK rising edge
10
nsec
4
R/G data setup to VCLK
10
nsec
5
R/G data hold from VCLK
10
nsec
6 VCLK
period
100
nsec
7
VCLK low width
30
nsec
8
VCLK high width
30
nsec
9
VS high setup to HS low
140
nsec
10
VS hold after HS
140
nsec
11
VS low setup to HS high
140
nsec
12 HS
period
34
usec
VS period
240
HS periods
VS
frequency
120
Hz
Notes: 1) The first HS falling edge occurring when VS is high indicates the first row
2) The video data for a given row is clocked in prior to the falling edge of HS
3) The first 320 VCLK falling edges after the fall of HS clock in the valid data
4) If video inputs are halted, the previously clocked in data will be displayed
5) Video frame dithering/gray scale may cause artifacts due to the frame buffer
6) All timing measurements are made at 1.6V
10
HS
VCLK
R/G data
VS
HS
First Line of
Pixel Data
Horizontal Timing
Vertical Timing
Data for First Pixel
Second Line of Pixel Data
8
7
9
11
1
2
4
5
6
3
10
EL320.240-FA3 Operations Manual Page 15 of 25