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APPLICATIONS

5

8

7

6

VS+

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

SLOS521 – MARCH 2007

• 3 HDTV Video Amplifiers for Y'P'

Fabricated

using

the

Silicon-Germanium

(SiGe)

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

BiCom-III process, the THS7316 is a low power

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

• Integrated Low-Pass Filters

buffer.

It

incorporates

a

5th-order

modified

–

Butterworth

filter

which

is

useful

as

a

DAC

–

–1 dB Passband Bandwidth at 31 MHz

reconstruction filter or an ADC anti-aliasing filter. The

36-MHz filter is a perfect choice for HDTV video

–

30 dB Attenuation at 74 MHz

• Versatile Input Biasing

and VGA/SVGA/XGA signals.

–

DC-Coupled With 140-mV Input Shift

As part of the THS7316 flexibility, the input can be

–

AC-Coupled with Sync-Tip Clamp

configured for ac or dc coupled inputs. The DC +

–

Allows AC-Coupled With Biasing

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

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

• Built-in 6-dB Gain (2V/V)

coupled modes include a transparent sync-tip clamp

• 3-V to 5-V Single Supply Operation

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

• Rail-to-Rail Output:

sync.

AC-coupled

biasing

for

channels can be achieved by adding an external

–

Output Swings Within 100 mV From the

resistor.

Rails Allowing AC or DC Output Coupling

–

Supports Driving 2 Lines per Channel

The THS7316 is the perfect choice for all output

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

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

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

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

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

Ω

• SOIC-8 Package

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

other power sensitive video applications.

• Set Top Box Output Video Buffering

• PVR/DVDR Output Buffering

The THS7316 is available in a small SOIC-8

package that is RoHS compliant.

• USB/Portable Low Power Video Buffering

Figure 1. 3.3-V Single-Supply DC-Input/DC Output Coupled Video Line Driver

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, 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.