AK8854VQ Datasheet, PDF (44/95 Pages) Asahi Kasei Microsystems – Multi-Format Digital Video Decoder

[AK8854VQ]
7.7 Output data timing
The AK8854 can control timing of output data.
YCDELAY[2:0]-bits: Adjustment of Y and C timing.
YCDELAY[2:0]-bits
Y and C timing
[001]
Y advance 1sample toward C.
[010]
Y advance 2sample toward C.
[011]
Y advance 3sample toward C.
[000]
No Delay and advance.
[101]
Y delay 3 sample toward C.
[110]
Y delay 2 sample toward C.
[111]
Y delay 1 sample toward C.
[100]
Reserved
Notes
74nsec advance
148nsec advance
222nsec advance
Default
222nsec delay
148nsec delay
74nsec delay
YCDELAY[2:0] = [000] ^{Cb0 Y0 Cr0 Y1 Cb1 Y2 Cr1 Y3 Cb2 Y4 Cr2 Y5} Y/C default
YCDELAY[2:0] = [111] ^{Cb0 Y857 Cr0 Y0 Cb1 Y1 Cr1 Y2 Cb2 Y3 Cr2 Y4} _{1sample delay}
YCDELAY[2:0] = [001] ^{Cb0 Y1 Cr0 Y2 Cb1 Y3 Cr1 Y4 Cb2 Y5 Cr2 Y6} 1sample adv.
DTCLK
ACTSTA[2:0]-bits: Adjustment of active video start position
ACTSTA[2:0]-bits
[001]
Line and active video start
525 Line
124^th sample
625 Line
134^th sample
[010]
[011]
525 Line
625 Line
525 Line
625 Line
125^th sample
135^th sample
126^th sample
136^th sample
[000]
525 Line
625 Line
123^th sample
133^th sample
[101]
525 Line
625 Line
120^th sample
130^th sample
[110]
525 Line
625 Line
121^th sample
131^th sample
[111]
525 Line
625 Line
122^th sample
132^th sample
Approximate delay/advance (ns)
74, delay
148, delay
222, delay
Default value (normal position)
222, advance
148, advance
74, advance
[100]
Reserved
Reserved
–
With the default value, the start position is as follows (with ITU-R BT.601 format compliance).
OH
122samples(525Line)
Active video start
OH
132samples(625Line)
Active video start
MS0973-E-01
44
2008/07