Philips TDA8443A 사용자 설명서
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
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.
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)
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