SGS Thomson Microelectronics TEA5114A Datasheet
.25MHzBANDWIDTH
.CROSSTALK: 55dB
.SHORTCIRCUIT TO GROUND OR V
TECTED
CC
PRO-
.ANTISATURATIONGAINCHANGING
.VIDEOSWITCHING
DESCRIP T IO N
This integrated circuit provides RGB switching allowing connectionsbetween peri TV plug, internal
RGBgeneratorand video processorin a TV set.
Theinput signalblacklevel is tied to the same referencevoltageoneachinputinordertohavenodifferentialvoltage when switching two RGB generators.
AnAC outputsignal higherthan 2 Vpp makesgain
goingslowly downto 0dBtoprotecttheTVsetvideo
amplifier from saturation.
Fast blanking outputis a logicial OR between FB1
(Pin8) and FB2 (Pin 10).
TEA5114A
RGB SWITCHINGCIRCUIT
DIP16
(Plastic Package)
ORDER CODE : TEA5114A
PIN CONNECTIONS
FB
R
R
G
G
B
B
INPUT
1
INPUT
2
INPUT
1
INPUT
2
INPUT
1
INPUT
2
INPUT
1
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R OUTPUT
FB
INPUT
R
V
CC
G OUTPUT
FB
INPUT
G
B OUTPUT
FB2FBB+
FB OUTPUT
INPUT
5114A-01.EPS
BLOCK DI AG RAM
G=2
123
May 1996
10111213
V
14
G=2 G=2
REF
45678
1516
9
OR
TEA5114A
5114A-02.EPS
1/4
TEA5114A
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
T
T
stg
Z
L
T
amb
THERMAL DATA
Symbol Parameter Value Unit
R
th(j-a)
ELECTRICAL OPERATING CHARACTERISTICS
=25°C, VCC=12V, ZL(RGB) = 300 Ω
T
amb
Symbol Parameter Min. Typ. Max. Unit
V
CC
I
CC
V
ON
G
RGB
B
RGB
V
GC
V
R
Z
IRGB
Z
ORGB
T
FB
V
IHFB
V
ILFB
Z
IFB
V
OHFB
V
OLFB
Z
OFB
T
dFBRGB
Supply Voltage 18 V
Junction Temperature – 40 to 150 °C
j
Storage Temperature – 40 to 150 °C
Minimum Load Resistor on Each Output VCC=12V
=10V
V
CC
300
150
Operating Ambient Temperature 0 to 70 °C
Junction-ambient Thermal Resistance 80 °C/W
=10V, ZL(RGB) = 150 Ω (unless otherwise specified)
V
CC
Supply Voltage 9 12 13.2 V
Supply Current without Load
=12V
V
CC
Black Level Output Voltage (on pins 11, 13, 16 square wave
20 30 40 mA
1.8 2.5 2.9 V
output signal 1 kHz - 1 Vpp)
=25°C (5mV/°C typical variation)
T
j
Gain of Each Channel Pins 11, 13, 16
F = 1 MHz , V
= 0.5 V
in
pp
Bandwidth (– 3 dB)
=1V
V
O
pp
5 5.5 6 dB
18 22 MHz
Threshold Output Voltage for Gain Changing (– 0.5 dB) 2 V
Video Rejection between Two Inputs R, G or B
F = 1 MHz Sinus V
O
=1V
pp
Input Impedance on Pins 1, 3, 4, 5, 6, 7
=1V
V
O
pp
50 55 dB
10 kΩ
R, G, B Output Impedance on Pins 11, 13, 16 15 Ω
FB rising and falling time on pin 9.
20 ns
1 Vpp Input Voltage Pins 8, 10
FB High Level Input Voltage on Pins 8, 10, 12, 15 1 4 V
FB Low Level Input Voltage on Pins 8, 10, 12, 15 0 0.4 V
Input Impedance on Pins 8, 10, 12, 15 0.7 1 1.3 kΩ
High Level FB Output Voltage (pin 9)
0.8 1 1.2 V
Input 1 V on Pins 8, 10
Low Level FB Output (pin 9)
Input 0 V on Pins 8, 10
FB Output Impedance
Pin 9 High Level
Delay Time between FB Inputs and R, G, B Switching 20 ns
0.3 V
30 Ω
Ω
Ω
5114A-01.TBL
5114A-02.TBL
pp
5114A-03.TBL
2/4
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