STMICROELECTRONICS TEA2124

TEA2124
VIDEO SWITCH
.
.
..
.
2 VIDEO OUTPUTS WITH 150Ω LOAD
DRIVE CAPABILITY
DYNAMIC OUTPUT AMPLITUDE 4 VPP ON
EACH OUTPUT
BANDWIDTH 18MHz TYP
CLAMPED VIDEO INPUTS
FULL PROTECTION AGAINST ESD
DIP8
(Plastic Package)
ORDER CODE : TEA2124
DESCRIPTION
This integrated circuit provides general video
switches. It is particularly intended for switching
between the peri TV plug and video section of the
sets. Its electrical performances make it suitable for
wide bandwidth applications (Teletext, D2MAC).
PIN CONNECTIONS
1
8
EXTERNAL VIDEO INPUT
EXTERNAL VIDEO OUTPUT
2
7
SUPPLY VOLTAGE
INTERNAL VIDEO INPUT
3
6
SWITCHED VIDEO OUTPUT
NOT TO BE USED
4
5
SWITCHING INPUT
2124-01.EPS
GROUND
September 1998
1/4
TEA2124
BLOCK DIAGRAM
V CC
SWITCH
7
EXT. VIDEO
8
5
6dB
75W
6
INT. VIDEO
3
6dB
75W
75W
6dB
75W
1
2124-02.EPS
TEA2124
2
ABSOLUTE MAXIMUM RATINGS
VCC
Tj
Tstg
Parameter
Value
Supply Voltage
Unit
14
Junction Temperature
Storage Temperature
V
- 40, + 150
o
- 40, + 150
o
C
C
2124-01.TBL
Symbol
ELECTRICAL CHARACTERISTICS
TA = 25oC, VCC = 8V (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
VCC
Supply Voltage
ICC
Supply Current (no load Pin 2 and Pin 6)
10
ICC
Supply Current (with load 150Ω on Pin 2 and Pin 6, no video on inputs)
25
6.5
Max.
Unit
13.2
V
15
mA
mA
Video Input Swing
VDCIN
IIN
2/4
DC Level Input
Input Bias Current (VDC = VDCIN + 1.5 VDC)
2
1.6
VPP
1.9
2.2
V
1
5
µA
2124-02.TBL
INPUTS (Pin 3 and Pin 8)
TEA2124
ELECTRICAL CHARACTERISTICS (continued)
TA = 25oC, VCC = 8V (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
3
4
Max.
Unit
SWITCHED OUTPUT (Pin 6) (RLOAD = 150Ω)
Video Output Swing
VPP
DC Level Output
0.7
1
1.3
V
Video Gain (Pin 6 versus Pin 3 or Pin 8, measured at 100kHz, 1 VPP input
signal)
5.5
6
6.5
dB
Video Bandwidth (Pin 6 versus Pin 3 or Pin 8, 1VPP input signal)
12
18
MHz
1
Ω
4
VPP
Output Impedance (measured Pin 6)
EXTERNAL OUTPUT (Pin 2) (RLOAD = 150Ω)
Video Output Swing
3
DC Level Output
0.7
1
1.3
V
Video Gain (Pin 2 versus Pin 3, measured at 100kHz, 1 VPP input signal)
5.5
6
6.5
dB
Video Bandwidth (Pin 2 versus Pin 3, 1VPP input signal)
12
18
MHz
1
Ω
Output Impedance (measured Pin 2)
SWITCHING INPUT (Pin 5)
Output Current Selection Pin (V5 = 0V)
Threshold Voltage
2.5
3.7
Max DC Level
10
µA
5
V
VCC
V
Crosstalk (between any input, measured at 5MHz)
RLOAD = 150Ω on Pins 2 and 6
RLOAD = 1kΩ on Pins 2 and 6
- 50
-55
dB
dB
3/4
2124-03.TBL
OTHER DYNAMIC FEATURES
TEA2124
PM-DIP8.EPS
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC DIP
A
a1
B
b
b1
D
E
e
e3
e4
F
I
L
Z
Min.
Millimeters
Typ.
3.32
0.51
1.15
0.356
0.204
Max.
1.65
0.55
0.304
10.92
9.75
7.95
Min.
0.020
0.045
0.014
0.008
Max.
0.065
0.022
0.012
0.430
0.384
0.313
2.54
7.62
7.62
3.18
Inches
Typ.
0.131
0.100
0.300
0.300
6.6
5.08
3.81
1.52
0.125
0260
0.200
0.150
0.060
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility 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 STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems
without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 1998 STMicroelectronics - All Rights Reserved
Purchase of I2C Components of STMicroelectronics, conveys a license under the Philips I2C Patent.
Rights to use these components in a I2C system, is granted provided that the system conforms to
the I2C Standard Specifications as defined by Philips.
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4/4
DIP8.TBL
Dimensions