TEA5114A
RGB SWITCHING CIRCUIT
.
.
.
.
.
25MHz BANDWIDTH
CROSSTALK : 55dB
SHORT CIRCUIT TO GROUND OR V
CC
PRO-
TECTED
ANTI SATURATION GAIN CHANGING
VIDEO SWITCHING
DIP16
(Plastic Package)
ORDER CODE :
TEA5114A
PIN CONNECTIONS
DESCRIPTION
This integrated circuit provides RGB switching al-
lowing connections between peri TV plug, internal
RGB generator and video processor in a TV set.
The input signal black level is tied to the same ref-
erence voltage on each input in order to have no dif-
ferential voltage when switching two RGB genera-
tors.
An AC output signal higher than 2 Vpp makes gain
going slowly down to 0dB to protect the TV set video
amplifier from saturation.
Fast blanking output is a logicial OR between FB1
(Pin 8) and FB2 (Pin 10).
BLOCK DIAGRAM
R
1
INPUT
GND
R
2
INPUT
G
1
INPUT
G
2
INPUT
B
1
INPUT
B
2
INPUT
FB
1
INPUT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R OUTPUT
FB
R
INPUT
V
CC
G OUTPUT
FB
G
INPUT
B OUTPUT
FB
2
+ FB
B
INPUT
FB OUTPUT
5114A-01.EPS
16
15
14
13
12
11
10
9
G=2
V
REF
G=2
G=2
OR
1
2
3
4
5
6
7
8
May 1996
1/4
5114A-02.EPS
TEA5114A
TEA5114A
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
T
j
T
stg
Z
L
T
amb
Supply Voltage
Junction Temperature
Storage Temperature
Minimum Load Resistor on Each Output
Operating Ambient Temperature
V
CC
= 12 V
V
CC
= 10 V
Parameter
Value
18
– 40 to 150
– 40 to 150
300
150
0 to 70
Unit
V
°C
°C
5114A-01.TBL
5114A-03.TBL
5114A-02.TBL
Ω
Ω
°C
THERMAL DATA
Symbol
R
th(j-a)
Parameter
Junction-ambient Thermal Resistance
Value
80
Unit
°C/W
ELECTRICAL OPERATING CHARACTERISTICS
T
amb
= 25
°C,
V
CC
= 12 V, Z
L
(RGB) = 300
Ω
V
CC
= 10 V, Z
L
(RGB) = 150
Ω
(unless otherwise specified)
Symbol
V
CC
I
CC
V
ON
Supply Voltage
Supply Current without Load
V
CC
= 12 V
Black Level Output Voltage (on pins 11, 13, 16 square wave
output signal 1 kHz - 1 Vpp)
T
j
= 25
°C
(5mV/°C typical variation)
Gain of Each Channel Pins 11, 13, 16
F = 1 MHz , V
in
= 0.5 V
pp
Bandwidth (– 3 dB)
V
O
= 1 V
pp
Threshold Output Voltage for Gain Changing (– 0.5 dB)
Video Rejection between Two Inputs R, G or B
F = 1 MHz Sinus V
O
= 1 V
pp
Input Impedance on Pins 1, 3, 4, 5, 6, 7
V
O
= 1 V
pp
R, G, B Output Impedance on Pins 11, 13, 16
FB rising and falling time on pin 9.
1 Vpp Input Voltage Pins 8, 10
FB High Level Input Voltage on Pins 8, 10, 12, 15
FB Low Level Input Voltage on Pins 8, 10, 12, 15
Input Impedance on Pins 8, 10, 12, 15
High Level FB Output Voltage (pin 9)
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
1
0
0.7
0.8
1
1
20
4
0.4
1.3
1.2
0.3
30
Parameter
Min.
9
20
1.8
Typ.
12
30
2.5
Max.
13.2
40
2.9
Unit
V
mA
V
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
5
18
2
50
10
5.5
22
6
dB
MHz
V
pp
55
dB
kΩ
15
Ω
ns
V
V
kΩ
V
V
Ω
ns
2/4
TEA5114A
TEST DIAGRAM
OUTPUTS
3 x ZL
R
G
B
R
G
B + FB2
V
CC
SWITCHES
CONTROL
16
1µF
100nF
15
14
13
12
11
10
9
FAST
BLANKING
OUTPUT
TEA5114A
1
6 x 47nF
2
3
4
5
6
7
8
FAST
BLANKING
INPUT
6 x 75Ω
5114A-03.EPS
R1
R2
G1
G2
B1
B2
INPUTS
TYPICAL R, G, B SWITCHING APPLICATION
Vcc = 12V
Vcc = 10V
ZL
ZL
300Ω
150Ω
Rout
Typical output
Signal 1Vpp
ZL
V
CC
16
15
14
13
12
11
10
9
TO VIDEO PROCESSOR
Gout
0.1µF
Bout
0.1µF
FBout
0.1µF
ZL
ZL
4.7µF
G=2
V
REF
G=2
G =2
OR
FB2
1
2
3
4
5
6
7
8
TEA5114A
B2
G2 2nd
GENERATOR
R2
6 x 100nF
39Ω
39Ω
39Ω
39Ω
R1
Peritelevision plug standard input value 1Vpp
G1
1st GENERATOR
B1
FB1
3/4
5114A-04.EPS
TEA5114A
PACKAGE MECHANICAL DATA
16 PINS – PLASTIC DIP
Dimensions
a1
B
b
b1
D
E
e
e3
F
I
L
Z
Min.
0.51
0.77
Millimeters
Typ.
Max.
1.65
Min.
0.020
0.030
Inches
Typ.
Max.
0.065
0.5
0.25
20
8.5
2.54
17.78
7.1
5.1
3.3
1.27
0.020
0.010
0.787
0.335
0.100
0.700
0.280
0.201
0.130
0.050
DIP16.TBL
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsi-
bility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which
may result from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON
Microelectronics. Specifications mentioned in this publ ication are subject to change without notice. This pub lication supersedes
and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical
components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.
©
1996 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I
2
C Components of SGS-THOMSON Microelectronics, conveys a license und er the Philips
I C Patent. Rights to use these components in a I
2
C system, is granted provided that the system conforms to
the I
2
C Standard Specifications as defined by Philips.
2
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