1995 Mar 07 2
Philips Semiconductors Product specification
I2C-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
•I2C-bus or non-I2C-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 I2C-bus by seven different
addresses or can be used in a non-I2C-bus mode. In the
non-I2C-bus mode, control of the circuit is achieved by DC
voltages.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VPsupply voltage (pin 18) 10.8 12.0 13.2 V
IPsupply current −65 90 mA
RGB/YUV channels
Z19-22 output impedance (pin 19) −730Ω
Z
20-22 output impedance (pin 20) −730Ω
Z
21-22 output impedance (pin 21) −730Ω
B bandwidth −3 dB; mode0 or 2 −25 −MHz
+3 dB; mode0 or 2 −12 −MHz
±3 dB; mode1 −10 −MHz
VO(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 (600mil) SOT101-1