TDA3504 Philips Semiconductors, TDA3504 Datasheet - Page 7

• Manufacturer Part Number: TDA3504
• Description: Video control combination circuit
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Notes
1. Maximum value 110 mA after warm-up.
2. Values are proportional to the supply voltage.
3. Matrixed according to equation V
4. Clipping due to internal signal limitation may occur when the Y input is greater than nominal and maximum contrast
5. When V
6. Internal signal limitation is allowed to start at 5.5 V after warm-up time.
7. The sandcastle pulse is compared with three internal thresholds (proportional to V
8. Blanked to ultra-black ( 25%).
9. Pulse duration 3.5 s.
1996 Jan 09
G
G
G
G
t
Sandcastle pulse detector (pin 6)
V
I
t
d
I
d
t
G
1-15
19-10
1-8
6
Video control combination circuit
SYMBOL
v1-15
v19-14
v19-10
v20-9
19, 20, 1
19, 20, 1
and minimum brightness.
levels of the internal RGB signals.
When V
DC voltage (correct clamping of the external RGB signals is possible only when they are synchronous with the
sandcastle pulse).
the various pulses.
;
;
;
; G
;
19-14
20-9
v1-8
7-18
7-18
;
voltage gain with respect to colour
difference inputs (pins 14 and 15)
frequency response of colour
difference paths
voltage gain with respect to inserted
signals
frequency response of inserted
signal paths
difference in transition times
between R, G and B channels
delay time between signal switching
and signal insertion
difference in gain between normal
and signal insertion mode
the following amplitudes are
required for separating the various
pulses
input current
delay of leading edge of clamping
pulse
< 0.4 V during clamping time, the black levels of the inserted RGB signals are clamped on the black
> 0.9 V during clamping time, the black levels of the inserted RGB signals are clamped on an internal
PARAMETER
(G Y)
= 0.51V
(R Y)
f = 0 to 2 MHz
f = 0 to 10 MHz
horizontal and vertical
blanking; notes 7 and 8
horizontal; note 7
clamping; notes 7 and 9
no keying; note 7
LOW
7
0.19V
CONDITIONS
(B Y)
.
11
12
2.1
4.1
7.6
MIN.
25
P
) and the given levels separate
14
14
0
2.5
4.5
8.0
0.5
TYP.
Product specification
17
3
16
3
15
+25
10
2.9
5.0
12.0
1.0
MAX.
TDA3504
110
dB
dB
dB
dB
ns
ns
%
V
V
V
V
UNIT
A
s