Datasheet TEA2124 Datasheet (SGS Thomson Microelectronics)

.

2 VIDEO OUTPUTS WITH 150Ω LOAD
DRIVE CAPABILITY

.

DYNAMIC OUTPUT AMPLITUDE 4 VPP ON
EACH OUTPUT

.

BANDWIDTH 18MHz TYP

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CLAMPED VIDEO INPUTS

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FULL PROTECTION AGAINST ESD

TEA2124

VIDEO SWITCH

DIP8

(Plastic Package)

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 (T eletext, D2MAC).

PIN CONNECTIONS

GROUND

EXTERNAL VIDEO OUTPUT

INTERNAL VIDEO INPUT

NOT TO BE USED

1

2

3

4

ORDER CODE :

8

EXTERNAL VIDEO INPUT

7

SUPPLY VOLTAGE

6

SWITCHED VIDEO OUTPUT

5

SWITCHING INPUT

TEA2124

September 1998

2124-01.EPS

1/4

TEA2124

BLOCK DIAGRAM

V

CC

SWITCH

EXT. VIDEO

7

8

6dB

5

75

W

6

INT. VIDEO

3

TEA2124

6dB

6dB

75

W

W

75

2

75

W

1

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

CC

T

T

stg

Supply Voltage 14 V
Junction Temperature - 40, + 150

j

Storage Temperature - 40, + 150

2124-02.EPS

o

C

o

C

2124-01.TBL

ELECTRICAL CHARACTERISTICS

T

= 25oC, VCC = 8V (unless otherwise specified)

A

Symbol Parameter Min. Typ. Max. Unit

V

I
I

INPUTS (Pin 3 and Pin 8)

V

DCIN

I

2/4

Supply Voltage 6.5 13.2 V

CC

Supply Current (no load Pin 2 and Pin 6) 10 15 mA

CC

Supply Current (with load 150Ω on Pin 2 and Pin 6, no video on inputs) 25 mA

CC

Video Input Swing 2 V
DC Level Input 1.6 1.9 2.2 V
Input Bias Current (VDC = V

IN

+ 1.5 VDC)15

DCIN

PP

µ

A

2124-02.TBL

TEA2124

ELECTRICAL CHARACTERISTICS

= 25oC, VCC = 8V (unless otherwise specified)

T

A

(continued)

Symbol Parameter Min. Typ. Max. Unit

SWITCHED OUTPUT (Pin 6) (R

LOAD

= 150Ω)

Video Output Swing 3 4 V
DC Level Output 0.7 1 1.3 V
Video Gain (Pin 6 versus Pin 3 or Pin 8, measured at 100kHz, 1 V

signal)
Video Bandwidth (Pin 6 versus Pin 3 or Pin 8, 1V

input signal) 12 18 MHz

PP

PP

input

5.5 6 6.5 dB

Output Impedance (measured Pin 6) 1

EXTERNAL OUTPUT (Pin 2) (R

LOAD

= 150Ω)

Video Output Swing 3 4 V
DC Level Output 0.7 1 1.3 V
Video Gain (Pin 2 versus Pin 3, measured at 100kHz, 1 V
Video Bandwidth (Pin 2 versus Pin 3, 1V

input signal) 12 18 MHz

PP

input signal) 5.5 6 6.5 dB

PP

Output Impedance (measured Pin 2) 1

SWITCHING INPUT (Pin 5)

Output Current Selection Pin (V

= 0V) 10

5

Threshold Voltage 2.5 3.7 5 V
Max DC Level V

CC

OTHER DYNAMIC FEATURES

Crosstalk (between any input, measured at 5MHz)

= 150Ω on Pins 2 and 6

R

LOAD

= 1kΩ on Pins 2 and 6

R

LOAD

- 50

-55

Ω

Ω

µ

V

dB
dB

PP

PP

A

2124-03.TBL

3/4

TEA2124

PACKAGE MECHANICAL DATA

8 PINS - PLASTIC DIP

Dimensions

Min. Typ. Max. Min. Typ. Max.

A 3.32 0.131

a1 0.51 0.020

B 1.15 1.65 0.045 0.065
b 0.356 0.55 0.014 0.022

b1 0.204 0.304 0.008 0.012

D 10.92 0.430
E 7.95 9.75 0.313 0.384

e 2.54 0.100
e3 7.62 0.300
e4 7.62 0.300

F 6.6 0260

I 5.08 0.200
L 3.18 3.81 0.125 0.150
Z 1.52 0.060

Millimeters Inches

PM-DIP8.EPS

DIP8.TBL

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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 sys tem s
without express written approv al of STMi cr oelec troni cs.

Purchase of I

Rights to use these components in a I

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Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.

The ST logo is a registered trademark of STMicroelectronics

1998 STMicroelectronics - All Rights Reserved

©

2

C Components of STMicroelectronics, conveys a license under the Philips I2C Pate n t .

2

C Standard Specifications as defined by Phili ps.

the I

STMicroelectronics GROUP OF COMPANIES

2

C system, is granted provided that the system conforms to

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