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TDA4884 Datasheet(PDF) 8 Page - NXP Semiconductors

Part No. TDA4884
Description  Advanced monitor video controller for OSD
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 8 page
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1997 Nov 26
8
Philips Semiconductors
Product specification
Three gain control video pre-amplifier for OSD
TDA4884
10 CHARACTERISTICS
VP = 8.0 V; Tamb =25 °C; all voltages measured with respect to GND (pin 4); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
supply voltage (pin 7)
7.2
8.0
8.8
V
IP
supply current (pin 7)
36
48
60
mA
Video signal inputs (pins 2, 5 and 8)
Vi(b-w)
input voltage (black-to-white
value; pins 2, 5 and 8)
0.7
1.0
V
VI(clamp)
DC voltage during input clamping
(artificial black + VBE)
note 1
2.8
3.1
3.4
V
II
DC input current
no clamping; VI =VI(clamp);
Tamb = −20 to +70 °C
−0.05
+0.05
+0.250
µA
during clamping;
VI =VI(clamp) + 0.7 V
50
75
120
µA
during clamping;
VI =VI(clamp) − 0.7 V
−50
−75
−120
µA
Contrast control (pin 6); note 2
Vi(CC)
input voltage
1.0
6.0
V
Vi(CC)(max)
maximum input voltage
−−
VP − 1V
Vi(CC)(nom)
input voltage for nominal contrast
note 3
4.3
V
Ii(CC)
input current
Vi(CC) = 4.3 V
−5
−1
−0.1
µA
COSD(min)
minimum contrast for OSD
Vi(CC) = 0.7 V
−−40
dB
contrast relative to nominal
contrast
Vi(CC) = 6.0 V; pins 3, 1 and
11 open-circuit
2.4
3.4
dB
Vi(CC) = 1.0 V; pins 3, 1 and
11 open-circuit
−26
−22
−19
dB
Vi(CC)(min)
input voltage for minimum contrast
pins 3, 1 and 11 open-circuit
0.7
V
∆Gtrack
tracking of output signals of
channels 1, 2 and 3
1V<Vi(CC) < 6 V; note 4
0
0.5
dB
tdf(C)
delay between leading (falling)
edges of contrast voltage and
voltage output waveforms
Vi(CC) = 4.3 V to 0.7 V; input
fall time at pin 6:
tf(CC) = 2 ns; note 5; Fig.7
720
ns
tdr(C)
delay between trailing edges
(rising) of contrast voltage and
voltage output waveforms
Vi(CC) = 0.7 V to 4.3 V; input
rise time at pin 6:
tr(CC) = 2 ns; note 5; Fig.7
15
25
ns
tf(C)
fall time of voltage output
waveform
90% to 10% amplitude;
input fall time at pin 6:
tf(CC) = 2 ns; note 5; Fig.7
615
ns
tr(C)
rise time of voltage output
waveform
10% to 90% amplitude;
input rise time at pin 6:
tr(CC) = 2 ns; note 5; Fig.7
615
ns
C
C
nom
-------------




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