TLS1233

VIDEO PREAMPLIFIER SYSTEM

SLVS126C – JULY 1995 – REVISED JUNE 1996

1

POST OFFICE BOX 655303

Required

Than for LM1203 Applications

Channel

description

The TLS1233 is a 100-MHz wide-band video preamplifier system intended for mid-to-high-resolution RGB

(red-green-blue) color monitors. Each video amplifier (R, G, and B) contains a gain set for adjusting maximum

adjustment control. All the control inputs offer high input impedance and an operation range from 0 V to 4 V for

easy interface to the serial digital buses. Provided in a 20-pin plastic dual-in-line package (DIP), the TLS1233

integrates most of the external components required to accommodate the video system.

The TLS1233 operates from a 12-V supply and contains an internal input bias voltage. Also, the TLS1233

contains the feedback resistor required between output and CLAMP(–) for dc level holding. The device is

characterized for operation from 0

°C to 70°C.

functional block diagram

Contrast

Control

A1

A1

A1

A2

A2

A2

16

18

1

15

20

13

19

VCC2

R VIDEO OUT

R CLAMP(+)

G VIDEO OUT

G CLAMP(+)

B VIDEO OUT

B CLAMP(+)

3

4

17

5

7

14

8

9

12

10

11

R VIDEO IN

R CLAMP CAP

R GAIN ADJUST

G VIDEO IN

G CLAMP CAP

G GAIN ADJUST

B VIDEO IN

B CLAMP CAP

B GAIN ADJUST

CONTRAST

CLAMP GATE

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

R CLAMP(+)

R VIDEO IN

R CLAMP CAP

G VIDEO IN

GND

G CLAMP CAP

B VIDEO IN

B CLAMP CAP

CONTRAST

G CLAMP(+)

B CLAMP(+)

R VIDEO OUT

R GAIN ADJUST

G VIDEO OUT

G GAIN ADJUST

B VIDEO OUT

B GAIN ADJUST

CLAMP GATE

N PACKAGE

(TOP VIEW)

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright

© 1996, Texas Instruments Incorporated