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APPLICATIONS

DESCRIPTION

3.3V

3.3V

2:1

Input1

0.1 F

m

0.1 F

m

0.1 F

m

75 W

In A

InB

Input2

75 W

ADC

9/16/35/

75MHz

LPF

AC

Sync

TIP

Clamp

DC

X1

DC

+Offset

Bypass

AC-

BIAS

+

-

1kW

878 W

675 W

150 W

+

-

Out

SAG

47 F

m

33 F

m

75 W

75 W

Monitor

Output

SDA

SCL

Disable

=

OPEN

THS7327

SLOS502 – SEPTEMBER 2006

2:1 Input MUX, and Selectable Input Bias Modes

•

Rail-to-Rail Output:

•

3-Video Amplifiers for CVBS, S-Video,

– Output Swings Within 0.1 V From the Rails

Which Allows AC or DC Output Coupling

•

HV Sync Paths With Adj. Schmitt Trigger

•

RoHS TQFP Package

•

2:1 Input MUX

•

•

Projectors

•

Integrated Low-Pass Filters on ADC Buffers

•

Professional Video Systems

•

LCD/DLP/LOCS Input Buffering

– Selectable Corner Frequencies of 9-MHz,

16-MHz, 35-MHz, and 75-MHz with Bypass

(500-MHz)

Fabricated

using

the

new

complimentary

•

Selectable Input Bias Modes

silicon-germanium (SiGe) BiCom-III process, the

– AC-Coupled with Sync-Tip Clamp

THS7327 is a low-power, single-supply 2.7-V to 5-V,

3-channel integrated video buffer with H and V Sync

– AC-Coupled with Bias

– DC-Coupled with Offset Shift

Butterworth anti-aliasing filter on each channel. The

– DC-Coupled

9-MHz is a perfect choice for SDTV video including

composite, S-Video™, and 480i/576i. The 16-MHz

•

Monitor Pass-Thru Function:

filter is ideal for EDTV 480p/576p, and VGA signals.

– Passes the Input Signal With no Filtering

The 35-MHz filter is useful for HDTV 720p/1080i, and

– 500-MHz BW and 1300 V/

µs Slew Rate

SVGA signals. The 75-MHz filter is ideal for HDTV

– 6-dB Gain With SAG Correction Capable

1080p and XGA/SXGA signals. For UXGA/QXGA

R’G’B’ signals, the filter can be bypassed allowing a

– High Output Impedance in Disable State

500-MHz bandwidth, 1150-V/

µs amplifier to buffer

•

2.7-V to 5-V Single Supply Operation

the signal.

•

Low 330 mW at 3.3-V Power Consumption

•

Disable Function Reduces Current to <1

µA

Figure 1. 3.3 V Single-Supply AC-Input/AC-Video Output System w/SAG Correction

(1 of 3 Channels Shown)

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.

PowerPAD is a trademark of Texas Instruments.

S-Video is a trademark of its respective owner.

I2C is a trademark of Philips Electronics.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006, 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.