TDA4680 Datasheet, PDF (10/28 Pages) NXP Semiconductors – Video processor with automatic cut-off and white level control

Philips Semiconductors
Video processor with automatic cut-off
and white level control
Product specification
TDA4680
Table 2 Cut-off and white level measurement lines; notes 1 to 3
VBW2
0
0
0
1
1
1
VBW1
0
0
1
0
0
1
VBW0
0
1
0
0
1
0
R
19
16
22
38, 39
32, 33
44, 45
G
20
17
23
40, 41
34, 35
46, 47
B
21
18
24
42, 43
36, 37
48, 49
WHITE
22
19
25
44, 45
38, 39
50, 51
STANDARD
PAL/SECAM
NTSC/PAL M
PAL/SECAM (EB)
PAL*/SECAM*
NTSC*/PAL M*
PAL*/SECAM* (EB)
Notes
1. The line numbers given are those of the horizontal pulse counts after the start of the vertical component of the
sandcastle pulse.
2. * line frequency of approximately 31 kHz.
3. (EB) is extended blanking.
Table 3 Signal input selection by the fast source switches; notes 1 to 4
I²C-BUS CONTROL BITS
ANALOG SWITCH SIGNALS
FSON2 FSDIS2 FSON1 FSDIS1
FSW₂
(PIN 1)
FSW₁
(PIN 13)
L
L
L
L
L
L
L
H
H
X
L
L
L
H
L
X
H
X
L
L
H
X
L
X
H
X
L
H
L
L
X
L
X
H
L
H
L
H
X
X
L
H
H
X
X
X
H
X
X
X
X
X
Notes
1. H: logical HIGH implies that the voltage >0.9 V.
2. L: logical LOW implies that the voltage <0.4 V.
3. X = don’t care.
4. ON indicates the selected input signal.
RGB₂
ON
ON
ON
ON
INPUT SELECTED
RGB₁
ON
ON
ON
ON
Y/CD
ON
ON
ON
ON
1996 Oct 25
10