AK8817 Datasheet, PDF (9/43 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
(2) Pixel Data Input Timing
[AK8817]
CLKIN
D[7:0]
HDI
VDI
VIH
VIL
tDS
tDH
Parameter
Data Setup Time
Symbol
Min.
Typ.
Max
tDS
5
Data Hold Time
tDH
8
When CLKINV = High, similar tDS and tDH are specified at the falling edge of CLKOUT.
(3) HSYNC pulse width
pHSW
Unit
nsec
nsec
CLKINV = Low
Conditions
HSYNC
Parameter
Symbol
Min.
Typ.
Max
Unit
Conditions
15
116
NTSC
(24.5454MHz)
HDI Pulse Width
pHSW
15
128
CLKs
27MHz
15
139
PAL
(29.50MHz)
* typical values are calculated by converting the HSYNC pulse width of Analog Video specification into number of system
clock pulses.
MS0413-E-00
9
2005 / Aug