UPD61052 NEC, UPD61052 Datasheet - Page 18

• Manufacturer Part Number: UPD61052
• Description: MPEG2 Audio / Video Encoder
• Manufacturer: NEC

(6) Video output
18
It converts an input video or a local-decoded video into picture size of 720 dots by 480/576 line and outputs with
the ITU-R BT.656 format.
Horizontal and vertical synchronization signals are switched from GPO.
Field detection is easy due to vertical synchronization signal delays 4VCLK since horizontal synchronization
signal.
OVHSYNC
OVHSYNC
OVVSYNC
OVVSYNC
OVVSYNC
OVHSYNC
OVVSYNC
OVVSYNC
(NTSC)
OVCLK
(NTSC)
(PAL)
(PAL)
NTSC
PAL
TV method
VBID
Closed caption
Wide screen signal
Figure 2-1. Video Output
Data Sheet S15082EJ4V0DS
4OVCLK
Table 2-4. Slicer
(b) Even Field
VBI data
H/2+4 OVCLK
(a) Odd Field
2.5H
3H
2.5H
3H
20, 283
21, 284
23 (336)
Detection line
µ
PD61051, 61052