TDA4885 Ver la hoja de datos (PDF) - Philips Electronics
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TDA4885 Datasheet PDF : 56 Pages
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Philips Semiconductors
150 MHz video controller with I2C-bus
Product specification
TDA4885
4 QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
VP
IP
VP1, 2, 3
supply voltage (pin 7)
supply current (pin 7)
channel supply voltage
(pins 29, 24 and 19)
7.6 8.0 8.8 V
−
20 25 mA
7.6 8.0 8.8 V
IP1, 2, 3
channel supply current
(pins 29, 24 and 19)
−
40 −
mA
Vi(b-w)
input voltage
(black-to-white value; pins 6, 8 and 10)
−
0.7 1.0 V
Vo(b-w)
nominal output voltage swing
nominal contrast;
2.5 2.8 −
V
(black-to-white value; pins 30, 25 and 20) maximum gain; pins 12,
13 and 14 grounded
Vo(b-w)(max) maximum output voltage swing
maximum contrast;
−
4.5 −
V
(black-to-white value; pins 30, 25 and 20) maximum gain; pins 12,
13 and 14 grounded
Vo
Vbl
Io(sink)
Io(source)
B
tr(O)
dVO
αct
CC
GC
BC
output voltage level (pins 30, 25 and 20)
0.1 −
6.0 V
typical reference black level
(pins 30, 25 and 20)
0.5 −
2.5 V
peak output sink current
during fast signal transients −
−
20 mA
peak output source current
during fast signal transients −40 −
−
mA
bandwidth
−3 dB (small signal)
−
150 −
MHz
video rise time at signal outputs
(pins 30, 25 and 20)
−
2.7 −
ns
over/undershoot at signal outputs
(pins 30, 25 and 20)
minimum rise/fall time
−
5
−
%
crosstalk at signal outputs
(pins 30, 25 and 20)
f = 80 MHz
−
−30 −
dB
contrast control related to nominal contrast
−28 −
+4 dB
gain control related to maximum gain
−7 −
0
dB
brightness control (typical black level voltage
change related to output signal amplitude)
−10 −
+30 %
Vo(OSD)(max) maximum OSD output voltage swing related maximum OSD contrast; −
125 −
%
to nominal output voltage swing
maximum gain; pins 12,
(pins 30, 25 and 20)
13 and 14 grounded
COSD
OSD contrast control related to maximum
OSD contrast
−12 −
0
dB
1997 Nov 25
4
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