Datasheet

Functional Description
19
SLES099C—March 2007 TVP5147PFP
2.5.1 Separate Syncs
VS, HS, and VBLK are independently software programmable to a 1× pixel count. This allows any possible
alignment to the internal pixel count and line count. The default settings for 525-line and 625-line video outputs
are given as examples below. FID changes at the same transient time when the trailing edge of vertical sync
occurs. The polarity of FID is programmable by an I
2
C interface.
First Field Video
525
VS
VBLK
FID
12345678910 2021
525-Line
HS
VS Start VS Stop
CS
VBLK Start VBLK Stop
Second Field Video
262
VS
VBLK
FID
263 264 265 266 267 268 269 270 271 272 273 283 284
HS
VS Start VS Stop
CS
VBLK Start VBLK Stop
NOTE: Line numbering conforms to ITU-R BT.470
Figure 2−18. Vertical Synchronization Signals for 525-Line System