tw9910 ETC-unknow, tw9910 Datasheet - Page 46

• Manufacturer Part Number: tw9910
• Description: Power Ntsc/pal/secam Video Decoder With Slicer
• Manufacturer: ETC-unknow

TW9910
0x25– Sync Amplitude (SYNCT)
0x26 – Sync Miss Count Register (MISSCNT)
0x27 – Clamp Position Register (PCLAMP)
TECHWELL, INC.
6-0
7-4
3-0
7-0
Bit
Bit
Bit
7
SYNCTD
SYNCT
MISSCNT
HSWIN
PCLAMP
Function
Function
Function
R/W
R/W 0 = Reference sync amplitude is set by SYNCT.
R/W These bits determine the standard sync pulse amplitude for AGC
R/W
R/W MISSCNT[3] controls the speed of VDLOSS detection with ‘0’ being
R/W These bits determine the VCR mode Hsync detection window.
R/W
R/W These bits set the clamping position from the PLL sync edge
1 = Reference sync amplitude is preset to 38h.
reference.
fast and ‘1’ being slow. MISSCNT[2:0] control the threshold of
horizontal sync miss detection per field before VDLOSS is flagged.
46
Description
Description
Description
Low Power NTSC/PAL/SECAM
Video Decoder with VBI Slicer
09/21/2006
REV.
Reset
Reset
Reset
38
38
1
4
4
A