1

FEATURES

DESCRIPTION

APPLICATIONS

5

8

7

6

GND

CH.2IN

CH.3IN

CH.1IN

CH.3OUT

CH.2OUT

CH.1OUT

DAC/

Encoder

1

2

3

4

Y’ /G’

P’ /R’

R

75 W

3.3V

3.3V

75 W

HDTV

720p/1080i

VGA

SVGA

XGA

Y’P’ P’

G’B’R’

B

R

R

R

R

THS7316

P’ /B’

B

P’ /R’ Out

R

Y’ /G’ Out

75 W

75 W

75 W

P’ /B’ Out

B

75 W

THS7316

SLOS521A – MARCH 2007 – REVISED JANUARY 2008

www.ti.com

• 3 HDTV Video Amplifiers for Y'P'

1080i, G'B'R' (R'G'B'), VGA/SVGA/XGA

Fabricated

using

the

Silicon-Germanium

(SiGe)

BiCom-III process, the THS7316 is a low power

• Integrated Low-Pass Filters

single-supply 3-V to 5-V, 3-channel integrated video

–

buffer.

It

incorporates

a

5th-order

modified

–

–1 dB Passband Bandwidth at 31 MHz

Butterworth

filter

which

is

useful

as

a

DAC

–

30 dB Attenuation at 74 MHz

reconstruction filter or an ADC anti-aliasing filter. The

36-MHz filter is a perfect choice for HDTV video

• Versatile Input Biasing

–

DC-Coupled With 140-mV Input Shift

and VGA/SVGA/XGA signals.

–

AC-Coupled with Sync-Tip Clamp

As part of the THS7316 flexibility, the input can be

–

Allows AC-Coupled With Biasing

configured for ac or dc coupled inputs. The DC +

• Built-in 6-dB Gain (2V/V)

140-mV input offset shift to allow for a full sync

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

• 3-V to 5-V Single Supply Operation

coupled modes include a transparent sync-tip clamp

• Rail-to-Rail Output:

option for signals with sync such as Y’ or Green with

–

Output Swings Within 100 mV From the

sync.

AC-coupled

biasing

for

channels can be achieved by adding an external

Rails Allowing AC or DC Output Coupling

resistor.

–

Supports Driving 2 Lines per Channel

The THS7316 is the perfect choice for all output

• Low 18.3-mA at 3.3-V Total Quiescent Current

buffer applications. Its rail-to-rail output stage with

• Low Differential Gain/Phase of 0.1% / 0.1°

6-dB gain allows for both ac and dc line driving. The

• SOIC-8 Package

ability to drive 2 video lines per channel, or 75-

Ω

loads, allows for maximum flexibility as a video line

driver. The 18.3-mA total quiescent current makes it

an excellent choice for USB powered, portable, or

• Set Top Box Output Video Buffering

other power sensitive video applications.

• PVR/DVDR Output Buffering

• USB/Portable Low Power Video Buffering

The THS7316 is available in a small SOIC-8 package

that is RoHS compliant.

Figure 1. 3.3-V 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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2008, 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.