AK8854VQ Datasheet, PDF (30/95 Pages) Asahi Kasei Microsystems – Multi-Format Digital Video Decoder

[AK8854VQ]
Additionary, the AK8854 can change the position, width and current value of clamp pulse by registers.
○CLPWIDTH[1:0]: Set the width of clamp pulse.
CLPWIDTH[1:0]-bits Clamp width
Notes
[00]
275nsec
[01]
555nsec
[10]
1.1usec
[11]
2.2usec
˞The positions of all clamp pulse are changed.
Sub-address 0x01_[7:6]
○CLPSTAT[1:0]: Set the position of clamp pulse.
Sub-address 0x01_[5:4]
CLPSTAT[1:0]-bits Clamp position
Notes
[00]
Sync tip/ middle/ bottom clamp: Centor of horizontal sync
Back porch clamp: Centor of backporch interval
[01]
(1/128) H delay
[10]
(2/128) H advance
[11]
(1/128) H advance
˞The positions of all clamp pulse are changed.
○BCLPSTAT[2:0]: Set the position of analog backporch clamp pulse.
BCLPSTAT[1:0]-bits
Clamp position
[000]
Same position with “CLPSTAT” setting
[001]
(1/128)H delay from “CLPSTAT” setting
[010]
(2/128)H delay from “CLPSTAT” setting
[011]
(3/128)H delay from “CLPSTAT” setting
[100]
(4/128)H advance from “CLPSTAT” setting
[101]
(3/128)H advance from “CLPSTAT” setting
[110]
(2/128)H advance from “CLPSTAT” setting
[111]
(1/128)H advance from “CLPSTAT” setting
˞Set only the position of analog backporch clamp pulse.
Sub-address 0x01_[2:0]
Notes
MS0973-E-01
30
2008/07