 English |
|
|
|
|
|
|
|
| Z90251 Datasheet, PDF (60/97 Pages) Zilog, Inc. – eZVision 200 Television Controllers with OSD | |||
| |||
| ◁ |
Z90255 ROM and Z90251 OTP
32 KB Television Controller with OSD
52
HSYNC and VSYNC Requirements
HSYNC and VSYNC must meet all TV broadcasting specifications. The minimum
width of VSYNC must conform to the specification in Figure 16.
Field 1
VT
HT
HCYCLE
Field 2
1/2 HCYCLE
VT must be larger than 1.5 x (HCYCLE +HT).
The same timing specification must applied in negative polarity.
Figure 16 HSYNC and VSYNC Specification
The rising edge of VSYNC must not coincide with the rising edge of HSYNC to be
sure that the controller recognizes both rising edges.
PS001301-0800
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese