TDA4882 Просмотр технического описания (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
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
tdr(C)
tf(C)
tr(C)
delay between trailing edges
Vi(CC) = 0.7 V to 4.3 V;
−
(rising) of contrast voltage and
input rise time at pin 6:
voltage output waveforms
tr(CC) = 2 ns; note 6; Fig.10
fall time of voltage output waveform 90% to 10% amplitude; input −
fall time at pin 6: tf(CC) = 2 ns;
note 6; Fig.10
rise time of voltage output
waveform
10% to 90% amplitude; input −
rise time at pin 6:
tr(CC) = 2 ns; note 6; Fig.10
15
25
ns
6
15
ns
6
15
ns
Gain control (channel 1 and channel 3); note 7; Fig.7
Vi(GC)
Vi(GC)(nom)
Ri(GC)
∆G
input voltage
input voltage for nominal gain
input resistance
gain control difference relative to
nominal gain
(channels 1 and 3 only)
pins 3 and 11 open-circuit
Vi(CC) = 4.3 V; Vi(GC) = 6 V
Vi(CC) = 4.3 V; Vi(GC) = 1 V
1.0 −
6.0 V
3.6 3.75 3.95 V
44
55
66
kΩ
2
2.6 3.3 dB
−5.5 −5
−4.5 dB
Feedback input (channels 1, 2 and 3); note 8; Fig.8
Vref(int)
Io(FB)(max)
internal reference voltage
maximum output current
∆Vbl(CRT)
∆Vref(T)
∆Vref(int)(VP)
black-level variation at CRT
variation of Vref(int) in the
temperature range
variation of Vref(int) with supply
voltage
during output clamping;
Vi(FB) = 3 V
note 9
Tamb = −20 to +70 °C
7.2 V ≤ VP ≤ 8.8 V
5.6 5.8 6.1 V
−500 −100 −60 nA
0
40
200 mV
0
20
50
mV
0
60
100 mV
Voltage outputs (channels 1, 2 and 3)
Vo(b-w)(nom)
Vblx(max)
Vbl(SO)
Vbl(TST)
nominal signal output voltage
(black-to-white value)
maximum adjustable black-level
voltage
black-level voltage during
switch-off, equal to minimum
adjustable black-level voltage
black-level voltage during test
mode
S/N
dO(th)
∆Vbl(fl)
Voffset(max)
signal-to-noise ratio
output thermal distortion
black-level variation between
clamping pulses
maximum offset during sync
clipping
pins 3 and 11 open-circuit; 0.69 0.79 0.89 V
Vi(CC) = 4.3 V; Vi(b-w) = 0.7 V
during output clamping;
1
1.2 1.4 V
Tamb = −20 to +70 °C
Vi(HBL) = VP; RO = 33 Ω;
Tamb = −20 to +70 °C
30
45
100 mV
Vi(HBL) = VP; Vi(CL) = VP; pin 1 0.3
0.7
1.2
V
open-circuit; Vi = VI(clamp);
note 10
note 11
−
50
44
dB
Io(b-w) = 50 mA; note 12
−
0.6 1
%
line frequency 30 kHz
−
0.5 4.5 mV
VI < VI(clamp);
note 13; Fig.9
0
7
15
mV
1997 Sep 04
9
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