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TDA4884 Datasheet(PDF) 10 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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 10 page
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1997 Nov 26
10
Philips Semiconductors
Product specification
Three gain control video pre-amplifier for OSD
TDA4884
Current outputs (pins 20, 17 and 14); note 13
Io(b-w)
output current (black-to-white
value)
50
mA
with peaking
−−
100
mA
V20-19;
V17-16; V14-13
start of HF-saturation voltage of
output transistors
Io =50mA
−−
2.0
V
Io = 100 mA
−−
2.2
V
Ibl(SO)
output current during switch-off
Vi(HBL) =VP; RO =33 Ω
0
20
900
µA
Frequency response at voltage outputs; note 14
∆G(f)
gain decrease by frequency
response at pins 19, 16 and 13
70 MHz; single channel
1.3
3
dB
tr(O)
rise time at voltage output (pins 19,
16 and 13)
10% to 90% amplitude;
input rise time = 1 ns
4.1
5.0
ns
dVO
overshoot of output signal pulse
related to actual output pulse
amplitude
single channel;
input rise time = 2.5 ns;
Vi(b-w) = 0.7 V;
Vi(CC) = 4.3 V; pins 3, 1
and 11 open-circuit
48%
Crosstalk at voltage outputs with speed up circuit; note 15
αcr(tr)
transient crosstalk
−−−20
dB
Threshold voltages for clamping, blanking and switch-off (pins 9 and 10); note 16
Vi(HBL)
input voltage at pin HBL
threshold for horizontal blanking
(blanking, output clamping)
1.2
1.4
1.6
V
threshold for switch-off (blanking,
minimum black level, no output
clamping)
5.8
6.5
6.8
V
Ri(HBL)
input resistance
against ground
50
80
110
k
Vi(CL)
input voltage at pin CL
threshold for vertical blanking
(blanking, no input clamping)
note 17
1.2
1.4
1.6
V
threshold for clamping (input
clamping, no blanking)
note 17
2.6
3.0
3.5
V
threshold for test mode (no
clamping, no blanking, for
Vbl(TST) see above)
for test mode also
Vi(HBL) > 6.8 V (switch-off)
VP − 1
VP
V
Ii(CL)
current
Vi(CL) <VP − 1V
−3
−1
−µA
Vi(CL) ≥ VP − 1V
100
−µA
tr(CL)
rise time for clamping pulse
note 17
−−
75
ns/V
tf(CL)
fall time for clamping pulse
note 17
−−
75
ns/V
tw(clamp)
width of clamping pulse
0.6
−−µs
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT




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