AK8853XQ Datasheet, PDF (13/70 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8853XQ/ VN]
5.5 Power-down sequence and Reset sequence after power-down
Reset must be applied for at least 2048 clock cycles (or 83.33 µs) before setting PDN (PDN=Low).
Reset must be applied for at least 10 ms after PDN release (PDN=Hi).
CLKIN
RSTN
PDN
RESs
GND
RESh
VIH
VIL
VIH
Parameter
Symbol Min
Typ
Max
Reset width before setting PDN
RESs
2048
(83.33)
–
–
Reset width after PDN release RESh
10
–
–
Units
CLK
(µs)
ms
To perform power-down, all control signals must always be brought to the voltage polarity to be used or
to ground level.
For any power supply removal, all power supplies must be removed.
Clock input is necessary for resetting.
The power-down sequence for connection of the crystal is as follows.
AVDD/DVDD
PVDD1/PVDD2
PDN
RSTN
XTI
VCOM,VRP,VRN
5 ms (max) to stable
crystal oscillation*
RESh ≥ 10ms(min)
PDN release
* Reference value
Rev-E-00
13
2008/01