R

S-Video

Y’

R

S-Video

C’

R

Y'/G'

R

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

SD1OUT

SD2OUT

SD3OUT

DisableSD

GND

DisableSF

SF1OUT

SF2OUT

SF3OUT

BypassSF

SD1IN

SD2IN

SD3IN

Filter2

V

S+

Filter1

SF1IN

SF2IN

SF3IN

BypassSD

THS7368

Bypass

SDLPF

Bypass

SFLPF

P' /B'

B

R

CVBS

P' /R'

R

R

75 W

CVBS

75 W

S-VideoY'Out

75 W

75 W

S-VideoC'Out

75 W

75 W

Y'/G'Out

75 W

75 W

P' /B'Out

B

75 W

75 W

P' /R'Out

R

75 W

75 W

+2.7Vto

+5V

DisableSF

DisableSD

Filter2

Filter1

THS7368

www.ti.com

SBOS497 – DECEMBER 2009

6-Channel Video Amplifier with 3-SD and 3-SD/ED/HD/Full-HD Filters and 6-dB Gain

Check for Samples: THS7368

1

FEATURES

DESCRIPTION

2345

• Three SDTV Video Amplifiers for CVBS,

Fabricated using the revolutionary, complementary

Silicon-Germanium (SiGe) BiCom3X process, the

THS7368 is a low-power, single-supply, 2.7-V to 5-V,

•

Three SD/ED/HD/Full-HD Selectable Filters for

six-channel integrated video buffer. It incorporates

three

SDTV

filters

and

three

selectable

•

Bypassable Sixth-Order Low-Pass Filters:

SD/ED/HD/Full-HD (also known as True-HD) HDTV

–

Fixed SD Channels: 9.5-MHz

filters.

All

filters

feature

bypassable

sixth-order

Butterworth

characteristics

that

are

useful

as

–

Selectable Channels:

digital-to-analog converter (DAC) reconstruction filters

9.5-MHz/18-MHz/36-MHz/72-MHz

or as analog-to-digital converter (ADC) anti-aliasing

•

Versatile Input Biasing:

filters.

–

DC-Coupled with 300-mV Output Shift

The THS7368 has flexible input coupling capabilities

–

AC-Coupled with Sync-Tip Clamp or Bias

that can be configured for either ac- or dc-coupled

•

Built-in 6-dB Gain (2 V/V)

inputs. The 300-mV output level shift allows for a full

sync dynamic range at the output with 0-V input. The

•

+2.7-V to +5-V Single-Supply Operation

ac-coupled modes include a transparent sync-tip

•

Rail-to-Rail Output:

clamp for CVBS, Y', and G'B'R' signals. AC-coupled

–

Output Swings Within 100 mV from the

Rails: Allows AC or DC Output Coupling

–

Supports Driving Two Video Lines/Channel

The THS7368 is an ideal choice for all video buffer

applications. Its rail-to-rail output stage with 6-dB gain

•

Low Total Quiescent Current: 23.4 mA at 3.3 V

allows for both ac and dc line driving. The ability to

•

Disabled Supply Current Function: 0.1

μA

drive two lines, or 75-

Ω loads, allows for maximum

•

Low Differential Gain/Phase: 0.2%/0.35°

flexibility as a video line driver. The 23.4-mA total

quiescent current at 3.3 V and 0.1

μA (disabled

APPLICATIONS

mode) makes it a good choice for systems that must

•

Set Top Box Output Video Buffering

•

PVR/DVDR Output Buffering

The THS7368 is available in a TSSOP-20 package

•

BluRay™ Output Video Buffer

that is lead-free and green (RoHS-compliant).

Figure 1. Single-Supply, DC-Input/DC-Output Coupled Video Line Driver

1

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.

2

BluRay is a trademark of Blu-ray Disc Association (BDA).

3

Energy Star is a registered trademark of Energy Star.

4

Macrovision is a registered trademark of Macrovision Corporation.

5

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.