AK8856 Datasheet, PDF (19/105 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Decoder

ASAHI KASEI
(5) Power-down sequence and reset sequence after power-down release
Activate reset for longer than 1024 clock cycles before setting PDN (PDN to low)
Activate reset after PDN release (PDN to high)
CLKIN
•••••••••••
RSTN
sRES
hRES
PDN
GND
[ AK8856 ]
VIH
VIL
VIH
Parameter
RSTN pulse width
Time from PDN to high to RSTN to
high
Symbol
Min
Typ
Max
sRES
1024
hRES
10
Unit
SYSCLK
msec
During power-down, all control signals must be connected to either the selected power supply or ground, and not to ViH / ViL levels.
When turning off power supplies (AVDD / DVDD) other than PVDD, place the AK8856 into power down mode.
Note ) Clock input is required for reset operation
Rev-01
19
2007/03