ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 84

• Manufacturer Part Number: ak8825
• Description: Hd/sd Multi Format Video Encoder With 3ch Dac
• Manufacturer: AKM Semiconductor, Inc.

■ Output Synchronization waveform
[SubAddress 0x27] can add Synchronization waveform on not only Y-signal but also on PB and Pr signal.
The synchronization waveform on Pb and Pr is same as synchronization waveform on Y-signal.
HD Block Control Register
Sub Address 0x07
Rev-E-00
AK8825 output synchronization waveform on Ysignal at default, however, COLSNCEN-bit of HD Block Control Register
COLSNCEN-bit
HDWSS
Pb
Pb
Pr
Pr
Y
Y
bit 7
0
1
HDCFLT1
bit 6
no sync waveform
no sync waveform
Sync on Y-signal
Sync on Y, Pb, Pr signal
No sync-waveform
No sync-waveform
COLSNCEN-bit = 0
COLSNCEN-bit = 0
HDCFLT0
bit 5
Fig. 119 525i / 625i / 525p / 625p case
Function
HDYFLT1
Fig. 120 1080i / 720p case
bit 4
84
HDYFLT0
bit 3
Pb
Pb
Pr
Pr
Y
Y
Reserved
bit 2
COLSNCEN-bit = 1
COLSNCEN
COLSNCEN-bit = 1
bit 1
default Value 0x00
HDVRATIO
bit 0
2008/03
[AK8825]