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
∆Vo(b-w)(T)
variation of nominal output signal
(black-to-white value) with
temperature
pins 3 and 11 open-circuit;
Vi(CC) = 4.3 V; Vi(b-w) = 0.7 V;
Tamb = −20 to +70 °C
Current outputs (channels 1, 2 and 3); note 14
Io(b-w)
output current
(black-to-white value)
with peaking
V20-19; V17-16; start of HF-saturation voltage of
V14-13
output transistors
Ibl(SO)
output current during switch-off
Io = 50 mA
Io = 100 mA
Vi(HBL) = VP; RO = 33 Ω
Frequency response at voltage outputs; note 15; Figs 11, 12 and 13
∆G(f)
gain decrease by frequency
response
70 MHz; single channel
tr(O)
rise time at voltage output
10% to 90% amplitude; input
rise time = 1 ns
dVO
overshoot of output signal pulse single channel;
related to actual output pulse
input rise time = 2.5 ns;
amplitude
Vi(b-w) = 0.7 V;
pins 3 and 11 open-circuit;
Vi(CC) = 4.3 V
Crosstalk at voltage outputs with speed up circuit; note 16; Figs 14, 15 and 16
αct(tr)
transient crosstalk
Threshold voltages for clamping, blanking and switch-off; note 17
Vi(HBL)
threshold for horizontal blanking
(blanking, output clamping)
threshold for switch-off (blanking,
minimum black-level, no output
clamping)
Ri(HBL)
td(Hblank)
input resistance
delay between horizontal blanking
input and output signal blanking
against ground
input rise time at
pin 9 > 100 ns;
note 18; Fig.18
Vi(CL)
threshold for vertical blanking
(blanking, no input clamping)
note 19; Fig.17
threshold for clamping
(input clamping, no blanking)
note 19; Fig.17
Ii(CL)
threshold for test mode
(no clamping, no blanking, see
Vbl(TST) above)
current
for test mode also
Vi(HBL) > 6.8 V (switch-off)
Vi(CL) < VP − 1 V
Vi(CL) ≥ VP − 1 V
MIN. TYP.
0
2.5
−
50
−
−
−
−
−
−
0
20
−
1.3
−
4.1
−
4
−
−
1.2 1.4
5.8 6.5
50
80
−
40
1.2 1.4
2.6 3.0
VP − 1 −
−3
−1
−
100
MAX. UNIT
10
%
−
mA
100 mA
2.0 V
2.2 V
900 µA
3
dB
5.0 ns
8
%
−20 dB
1.6 V
6.8 V
110 kΩ
60
ns
1.6 V
3.5 V
VP
V
−
µA
−
µA
1997 Sep 04
10
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