TEA2124 [STMICROELECTRONICS]
VIDEO SWITCH; 视频开关
| 型号： | TEA2124 |
| 厂家： | 
ST |
| 描述： | VIDEO SWITCH |
| 文件： | 总4页 (文件大小：56K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TEA2124
VIDEO SWITCH
.
.
Ω
2 VIDEO OUTPUTS WITH 150
DRIVE CAPABILITY
LOAD
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
GROUND
EXTERNAL VIDEO OUTPUT
INTERNAL VIDEO INPUT
NOT TO BE USED
1
2
3
4
8
7
6
5
EXTERNAL VIDEO INPUT
SUPPLY VOLTAGE
SWITCHED VIDEO OUTPUT
SWITCHING INPUT
1/4
September 1998
TEA2124
BLOCK DIAGRAM
VCC
SWITCH
7
5
8
3
EXT. VIDEO
INT. VIDEO
6dB
6dB
75
W
6
2
75
W
W
75
W
6dB
1
75
TEA2124
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
oC
oC
VCC
Tj
Supply Voltage
14
Junction Temperature
Storage Temperature
- 40, + 150
- 40, + 150
Tstg
ELECTRICAL CHARACTERISTICS
TA = 25oC, VCC = 8V (unless otherwise specified)
Symbol
VCC
Parameter
Min. Typ. Max. Unit
Supply Voltage
Supply Current (no load Pin 2 and Pin 6)
Supply Current (with load 150Ω on Pin 2 and Pin 6, no video on inputs)
6.5
13.2
15
V
ICC
10
25
mA
mA
ICC
INPUTS (Pin 3 and Pin 8)
Video Input Swing
DC Level Input
Input Bias Current (VDC = VDCIN + 1.5 VDC
2
1.9
1
VPP
V
VDCIN
IIN
1.6
2.2
5
)
µA
2/4
TEA2124
ELECTRICAL CHARACTERISTICS
(continued)
TA = 25oC, VCC = 8V (unless otherwise specified)
Symbol
Parameter
Min. Typ. Max. Unit
SWITCHED OUTPUT (Pin 6) (RLOAD = 150Ω)
Video Output Swing
DC Level Output
3
4
1
6
VPP
V
0.7
5.5
1.3
6.5
Video Gain (Pin 6 versus Pin 3 or Pin 8, measured at 100kHz, 1 VPP input
signal)
dB
Video Bandwidth (Pin 6 versus Pin 3 or Pin 8, 1VPP input signal)
Output Impedance (measured Pin 6)
12
18
1
MHz
Ω
EXTERNAL OUTPUT (Pin 2) (RLOAD = 150Ω)
Video Output Swing
3
4
1
VPP
V
DC Level Output
0.7
5.5
12
1.3
6.5
Video Gain (Pin 2 versus Pin 3, measured at 100kHz, 1 VPP input signal)
Video Bandwidth (Pin 2 versus Pin 3, 1VPP input signal)
Output Impedance (measured Pin 2)
6
dB
MHz
Ω
18
1
SWITCHING INPUT (Pin 5)
Output Current Selection Pin (V5 = 0V)
Threshold Voltage
10
5
µA
V
2.5
3.7
Max DC Level
VCC
V
OTHER DYNAMIC FEATURES
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
TEA2124
PACKAGE MECHANICAL DATA
8 PINS - PLASTIC DIP
Millimeters
Inches
Typ.
Dimensions
Min.
Typ.
Max.
Min.
Max.
A
a1
B
3.32
0.131
0.51
1.15
0.020
0.045
0.014
0.008
1.65
0.55
0.065
0.022
0.012
0.430
0.384
b
0.356
0.204
b1
D
E
0.304
10.92
9.75
7.95
0.313
e
2.54
7.62
7.62
0.100
0.300
0.300
e3
e4
F
6.6
0260
0.200
0.150
0.060
I
5.08
3.81
1.52
L
3.18
0.125
Z
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
previouslysupplied. STMicroelectronicsproducts arenot authorizedforuse ascritical components in life supportdevicesorsystems
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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