1995 Mar 07
2
Philips Semiconductors
Product specification
I
2
C-bus controlled YUV/RGB switch
TDA8443A
FEATURES
•
Two RGB/YUV selectable clamped inputs with
associated synchronization
•
RGB/YUV matrix
•
3-state switching with an OFF-state
•
Selectable gain
•
I
2
C-bus or non-I
2
C-bus mode
•
Address selection for 7 devices
•
Fast switching.
GENERAL DESCRIPTION
The TDA8443A is a general purpose two-channel switch
for YUV or RGB signals. One channel provides matrixing
from RGB to YUV, which can be bypassed.
The IC is controlled via I
2
C-bus by seven different
addresses or can be used in a non-I
2
C-bus mode. In the
non-I
2
C-bus mode, control of the circuit is achieved by DC
voltages.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage (pin 18)
10.8
12.0
13.2
V
I
P
supply current
−
65
90
mA
RGB/YUV channels
Z
19-22
output impedance (pin 19)
−
7
30
Ω
Z
20-22
output impedance (pin 20)
−
7
30
Ω
Z
21-22
output impedance (pin 21)
−
7
30
Ω
B
bandwidth
−
3 dB; mode 0 or 2
−
25
−
MHz
+3 dB; mode 0 or 2
−
12
−
MHz
±
3 dB; mode 1
−
10
−
MHz
V
O(p
−
p)
maximum output amplitude of YUV
signals (peak-to-peak value)
gain
×
1
2.1
−
−
V
gain
×
2
4.2
−
−
V
T
amb
operating ambient temperature
0
−
+70
°
C
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8443A
DIP24
plastic dual in-line package; 24 leads (600 mil)
SOT101-1