AK8859VN Datasheet, PDF (26/72 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8859VN]
[7.13.] HD pin output
The Horizontal Sync signal of the AK8859VN is output from HD pin.
Pin name
HD
525-Line
Low for 4.7us at
15.734 kHz interval.
625-Line
Low for 4.7us at
15.625 kHz interval.
[7.14.] VD_F and VAR pin output selection
The output signal from VD_F and VAR pins is show as follows by register setting.
Pin name
VD_F
VAR
Output
signal
VD
FIELD
DVALID
FIELD
NSIG
LINE
Notes
525-Line
625-Line
Line4~Line6 and
Line266.5~Line269.5: Low
Line1~Line3.5 and
Line313.5~Line315: Low
ODD-Field: Low, EVEN-Field: High
Active video data period. Active-Low
ODD-Field: Low, EVEN-Field: High
Sync status of video input signal
Low: Signal present (synchronized)
High: Signal absent (not synchronized)
In auto detection mode, it shows the result of line number detected in input
video signal.
525LINE: Low, 625LINE: High
If the auto detection mode is OFF, the setting of current VLF-bit* is output
through this pin.
(*Sub-address:0x02-“bit4”)
The output signal of VD_F and VAR pins is show as follows.
Settings for VD/FIELD signals selection
Name
Definition
VD_FSEL
[0]: VD signal output
[1]: FIELD signal output
Sub Address: 0x05 [5]
Notes
Settings for VAR pin output signals selection
Name
Definition
VARSEL0
~
VARSEL1
[ VARSEL1 : VARSEL0 ]
[00]: DVALID signal output
[01]: FIELD signal output
[10]: NSIG signal output
[11]: LINE signal output
Sub Address: 0x05 [7:6]
Notes
MS1179-E-00
AKM Confidential
- 26 -
2010/04