AK8815 Datasheet, PDF (9/37 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
[AK8815/16]
AC TIMING
( PVDD = 2.7 V ~ 3.3 V / PVDD = 1.6 V ~ 2.0 V, Temperature : –20 ~ 85°C)
loading condition : CL = 30 pF ( at 3.0 V I/F )
CL = 15 pF ( at 1.8 V I/F )
(1) CLK
( 1-1 ) CLKMD = DVSS : when a crystal resonator is connected ( +/_ 50 ppm )
CLKOUT
fCLK
tCLKL
tCLKH
1/2 PVDD1
VIH1, VIH2
VIL1, VIL2
Parameter
CLKOUT
Symbol
Min.
fCLKO
Typ.
24.5454
29.500
Max
Unit
MHz
tCLKIL, tCLKIH : minimum pulse width 10 nS guaranteed by design
External input clock AC timing ( DVCC = 2.7 V ~ 3.3 V : -20 ~ 85 °C )
( 1-2 ) CLKMMD = XVDD : when an external clock source is input ( +/_ 50 ppm )
Conditions
NTSC
PAL
CLKIN
fCLKI
tCLKIL
tCLKIH
1/2 DVCC
VIH1
VIL1
Parameter
CLKIN
Symbol
Min.
fCLKI
Typ.
24.5454
29.50
Max
Unit
MHz
Conditions
NTSC
PAL
CLKIN Duty
pCLKID
40
60
%
tCLKIL, tCLKIH : minimum pulse width 12 nS ( tr / tf = < 2 nS at 10 % - 90 % level of power supply )
MS0331-E-00
9
2004 / 08