TDA4882 データシートの表示（PDF） - Philips Electronics
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TDA4882 Datasheet PDF : 28 Pages
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Philips Semiconductors
Advanced monitor video controller for OSD
Product specification
TDA4882
10 CHARACTERISTICS
VP = 8.0 V; Tamb = 25 °C; all voltages measured to GND (pin 4); note 1; see Fig.4; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
VP
supply voltage
IP
supply current
Video signal inputs (channels 1, 2 and 3)
7.2 8.0 8.8 V
36
48
60
mA
Vi(b-w)
VI(clamp)
II
input voltage, black-to-white
DC voltage during input clamping
(artificial black + VBE)
DC input current
Brightness control; note 2; Fig.5
no clamping; Vi = VI(clamp);
Tamb = −20 to +70 °C
during clamping;
Vi = VI(clamp) + 0.7 V
during clamping;
Vi = VI(clamp) − 0.7 V
−
0.7 1.0 V
2.8 3.1 3.4 V
−0.05 +0.05 +0.25 µA
0
50
75
120 µA
−120 −75 −50 µA
Vi(BC)
Ri(BC)
Vi(BC)(nom)
∆Vbl
∆VBT
input voltage
input resistance
input voltage for nominal brightness pin 1 open-circuit
black-level voltage change at
voltage outputs referred to
reference black level during output
clamping (Vi(HBL) > 1.6 V) related
to output signal amplitude with
nominal 0.7 V (p-p) input signal and
nominal contrast (Vi(CC) = 4.3 V) for
any gain setting
Vi(BC) = 1.0 V
Vi(BC) = 6.0 V
pin 1 open-circuit
difference of ∆Vbl between any two
channels
1.0 −
6.0 V
40
50
60
kΩ
2.0 2.25 2.5 V
−13 −11 −9.5 %
30
34
37
%
−
−
0.8 %
−1.2 0
+1.2 %
Contrast control; note 3; Fig.6
Vi(CC)
Vi(CC)(max)
Vi(CC)(nom)
Ii(CC)
C/Cnom
Vi(CC)(min)
∆Gtrack
tdf(C)
input voltage
maximum input voltage
input voltage for nominal contrast note 4
input current
Vi(CC) = 4.3 V
contrast relative to nominal contrast Vi(CC) = 6.0 V;
pins 3 and 11 open-circuit
Vi(CC) = 1.0 V;
pins 3 and 11 open-circuit
input voltage for minimum contrast pins 3 and 11 open-circuit
tracking of output signals of
channels 1, 2 and 3
1 V < Vi(CC) < 6 V; note 5
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 6; Fig.10
1.0 −
6.0 V
−
−
VP − 1 V
−
4.3 −
V
−5
−1
−0.1 µA
2.4 3.4 −
dB
−26 −22 −19 dB
−
0.7 −
V
−
0
0.5 dB
−
7
20
ns
1997 Sep 04
8
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