TDA4884 Philips Semiconductors, TDA4884 Datasheet - Page 3

• Manufacturer Part Number: TDA4884
• Description: Advanced monitor video controller for OSD
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1
3
4
1997 Nov 26
V
I
V
V
I
B
G
CR
C
T
TDA4884
P
o(b-w)
NUMBER
SYMBOL
G
amb
85 MHz video controller
Fully DC controllable
3 separate video channels
Input black-level clamping
White level adjustment for 3 channels
Contrast control for all 3 channels simultaneously
Cathode feedback to internal reference for cut-off
control, which allows unstabilized video supply voltage
Current outputs for RGB signal currents
RGB voltage outputs to external peaking circuits
Blanking and switch-off input for screen protection
Sync on green operation possible
On Screen Display (OSD) facility.
P
i(b-w)
o(b-w)
OSD(min)
Three gain control video pre-amplifier for OSD
nom
TYPE
contrast
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
positive supply voltage
supply current
input voltage (black-to-white; pins 2, 5
and 8)
output voltage (black-to-white; pins 19,
16 and 13)
output current (black-to-white; pins 20,
17 and 14)
bandwidth
nominal gain (pins 2, 5 and 8 to pins 19,
16 and 13)
gain control difference for all channels
contrast control
minimum contrast for OSD
operating ambient temperature
NAME
DIP20
PARAMETER
plastic dual in-line package; 20 leads (300 mil)
DESCRIPTION
nominal contrast; pins 3,
1 and 11 open-circuit
with peaking
nominal contrast; pins 3,
1 and 11 open-circuit
relative to G
V
V
3 dB
i(CC)
i(CC)
3
PACKAGE
2
The TDA4884 is an RGB pre-amplifier for colour monitor
systems with SVGA performance, intended for DC or AC
coupling of the colour signals to the cathodes of the CRT.
With special advantages the circuit can be used in
conjunction with the TDA485x monitor deflection IC family.
CONDITIONS
= 1 to 6 V
= 0.7 V
GENERAL DESCRIPTION
nom
7.2
36
70
MIN.
5
22
20
8.0
48
0.7
0.79
50
85
1
TYP.
40
Product specification
TDA4884
8.8
60
1.0
100
+2.6
+3.4
+70
MAX.
SOT146-1
VERSION
V
mA
V
V
mA
mA
MHz
dB
dB
dB
dB
UNIT
C