SED1330F Datasheet, PDF (106/148 Pages) List of Unclassifed Manufacturers – LCD Controller ICs

7.0 TV Mode (SED1336 only)
7.1
Field blanking (25H + a) (a = 11-line blanking interval)
42H
2.5H
2.5H
2.5H
17.5H
45H
311 312 313 314 315 316 317 318 319 320
335
Display
period
Pre-blanking
interval
Interval before
equalizing pulses
Vertical sync
pulse interval
Interval after
equalizing pulses
Reference
subcarrier phase
color field I
Post-
blanking
interval
Display
interval
Figure 68. PAL vertical sync waveform
Table 27. Vertical sync timing characteristics
Parameter
NTSC
system
timing
Pre-
blanking
Interval
21H
Interval
before
Equalizing
Pulse
Vertical
Sync Pulse
Interval
Interval Reference
after Subcarrier
Equalizing Phase Color
Pulse
Field I
Post-
blanking
Interval
3H
3H
3H
11H
21H
Display
Interval
Equalizing
Pulse
Interval
Vertical
Serration
Pulse
Interval
200H
15CK
27CK
PAL
system
timing
VSD
output
level
42H
High
impedance
2.5H
LOW
2.5H
LOW
2.5H
LOW
17.5H
45H
200H
15CK
LOW
High
impedance
LOW or
high
impedance
—
27CK
—
Notes:
1. The NTSC system uses 262 lines per screen, and the PAL system, 312.
2. H = Horizontal line period
CK = Oscillator period
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