1FEATURES
2345• 3-Video Amplifiers for CVBS, S-Video,
SD/ED/HD Y'P'BP'R, G'B'R', and R'G'B' Video
• HV Sync Paths With Adj. Schmitt Trigger
• 2:1 Input MUX
• I2C™ Control of All Functions
• Integrated Low-Pass Filters on ADC Buffers
– 5th Order Butterworth Characteristics
– Selectable Corner Frequencies of 9-MHz,
16-MHz, 35-MHz, and 75-MHz with Bypass (500-MHz)
• Selectable Input Bias Modes:
– AC-Coupled with Sync-Tip Clamp
– AC-Coupled with Bias
– DC-Coupled with Offset Shift
– DC-Coupled
• Monitor Pass-Thru Function:
– Passes the Input Signal With no Filtering
– 500-MHz BW and 1300 V/μs Slew Rate
– 6-dB Gain With SAG Correction Capable
– High Output Impedance in Disable State
• 2.7-V to 5-V Single Supply Operation
• Low 330 mW at 3.3-V Power Consumption
• Disable Function Reduces Current to < 1 μA
• Rail-to-Rail Output:
– Output Swings Within 0.1 V From the Rails
Which Allows AC or DC Output Coupling
• RoHS TQFP Package

APPLICATIONS
• Projectors
• Professional Video Systems
• LCD/DLP/LOCS Input Buffering

DESCRIPTION
Fabricated using the new complementary
silicon-germanium (SiGe) BiCom-III process, the
THS7327 is a low-power, single-supply 2.7-V to 5-V,
3-channel integrated video buffer with H and V Sync
signal paths. It incorporates a selectable 5th order
Butterworth anti-aliasing filter on each channel. The
9-MHz is a perfect choice for SDTV video including
composite, S-Video™, and 480i/576i. The 16-MHz
filter is ideal for EDTV 480p/576p and VGA signals.
The 35-MHz filter is useful for HDTV 720p/1080i and
SVGA signals. The 75-MHz filter is ideal for HDTV
1080p and XGA/SXGA signals. For UXGA/QXGA
R’G’B’ signals, the filter can be bypassed allowing a
500-MHz bandwidth, 1150-V/μs amplifier to buffer the
signal.