AK8825 Datasheet, PDF (95/162 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

(5-2-1) 1080i Horizontal Sync waveform (50Hz)
50%
V /2
0H
b
2640T
e (192T)
f
f
50%
Sp
f
[AK8825]
V /2
50%
Sm
485T
a (44T)
c (44T)
4T
712T
A N C ILLA R Y D ATA or
B LA N K IN G C O D EW O R D S
90%
300m V
300m V
10%
f
t1
t2
1920T
4T
1920T
V ID E O D ATA
B L A N K IN G
BPSRT
BPSTP
HLFP
BROAD PULSE
Fig. 136
1080i 60Hz
Symbol
parameter
a
b
c
e
f
t2 – t1
Sm
Sp
V
BPSRT
BPSTP
HLFP
Negative line sync width
End of active video
positive line sync width
Start of active video
Rise/fall time
Symmetry of rising edge
Amplitude of negative pulse
Amplitude of positive pulse
Amplitude of video signal
Total Lines
Active Lines
Broad pulse start pos
Broad pulse stop pos
H/2 pos
Nominal value
0.593 [usec]
7.120 [usec]
0.593 [usec]
2.589 [usec]
0.054 [usec]
-
300 [mV]
300 [mV]
700 [mV]
Reference
clock Interval
44
529
44
192
4
-
-
-
-
2640
1920
132
1012
1100
Tolerance
CLK
+/- 3
+/- 3
-0 / + 6
+/- 1.5
Tolerance
+/- 0.040 [usec]
+0.080 [usec]
+/- 0.040 [usec]
+0.080 [usec]
+/- 0.020 [usec]
+/- 0.002 [usec]
+/- 6mV
+/- 6mV
-12, +0
-3 ~ +3
-3 ~ +3
-3 ~ +3
Rev-E-00
95
2008/03