THS7364_14 Datasheet, PDF (1/49 Pages) Texas Instruments – 6-Channel Video Amplifier with 3 SD and 3 Full-HD Filters with 6-dB Gain

THS7364
www.ti.com
SBOS530 – AUGUST 2010
6-Channel Video Amplifier with 3 SD and 3 Full-HD Filters with 6-dB Gain
Check for Samples: THS7364
FEATURES
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•2345 Three SDTV Video Amplifiers for CVBS,
S-Video, Y’/P’_B/P’_R, 480i/576i, Y’U’V’, or G'B'R'
• Three Full-HD Selectable Filters for Y’/P’_B/P’_R,
G’B’R’, or Computer RGB
• Bypassable Sixth-Order Low-Pass Filters:
– Fixed SD Channels: 9.5-MHz
– Fixed Full-HD Channels: 72-MHz
• Versatile Input Biasing:
– DC-Coupled with 300-mV Output Shift
– AC-Coupled with Sync-Tip Clamp or Bias
• Built-in 6-dB Gain (2 V/V)
• +2.7-V to +5-V Single-Supply Operation
• Rail-to-Rail Output:
– Output Swings within 100 mV from the
Rails: Allows AC or DC Output Coupling
– Supports Driving Two Video Lines/Channel
• Low Total Quiescent Current: 23.4 mA at 3.3 V
• Disabled Supply Current Function: 0.1 mA
• Low Differential Gain/Phase: 0.25%/0.4°
APPLICATIONS
• Set Top Box Output Video Buffering
• PVR/DVDR Output Buffering
• BluRay™ Output Video Buffer
DESCRIPTION
Fabricated using the revolutionary, complementary
Silicon-Germanium (SiGe) BiCom3X process, the
THS7364 is a low-power, single-supply, 2.7-V to 5-V,
six-channel integrated video buffer. It incorporates
three SDTV filters and three Full-HD (also known as
True-HD) HDTV filters. All filters feature bypassable
sixth-order Butterworth characteristics that are useful
as digital-to-analog converter (DAC) reconstruction
filters or as analog-to-digital converter (ADC)
anti-aliasing filters.
The THS7364 has flexible input coupling capabilities,
and can be configured for either ac- or dc-coupled
inputs. The 300-mV output level shift allows for a full
sync dynamic range at the output with 0-V input.
AC-coupled modes include a transparent sync-tip
clamp for CVBS, Y', and G'B'R' signals. AC-coupled
biasing for C'/P'_B/P'_R channels can easily be achieved
by adding an external resistor to V_S+.
The THS7364 is an ideal choice for a wide range of
video buffer applications. Its rail-to-rail output stage
with 6-dB gain allows for both ac and dc line driving.
The ability to drive two lines, or 75-Ω loads, allows for
maximum flexibility as a video line driver. The
23.4-mA total quiescent current at 3.3 V and 0.1 mA
(disabled mode) makes it well-suited for systems that
must meet power-sensitive Energy Star^® standards.
The THS7364 is available in a TSSOP-20 package
that is lead-free and green (RoHS-compliant).
CVBS
S-Video
Y’
S-Video
C’
Y'/G'
P'_B/B'
P'_R/R'
THS7364
1 SD1 IN
SD1 OUT 20
R
2 SD2 IN
SD2 OUT 19
CVBS
75 W
S-Video Y' Out
75 W
75 W
3 SD3 IN
SD3 OUT 18
S-Video C' Out
R
4 NC
Disable SD 17
Disable SD
75 W
75 W
+2.7 V to
+5 V
5 V_S+
GND 16
75 W
6 NC
Disable FHD 15
Disable FHD
R
7 FHD1 IN FHD1 OUT 14
Y'/G' Out
75 W
8 FHD2 IN FHD2 OUT 13
R
9 FHD3 IN FHD3 OUT 12
P'_B/B' Out
75 W
75 W
10 Bypass SD Bypass FHD 11
P'_R/R' Out
R
75 W
75 W
Bypass
SD LPF
R
Bypass
FHD LPF
75 W
Figure 1. Single-Supply, DC-Input/DC-Output Coupled Video Line Driver
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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.
BluRay is a trademark of Blu-ray Disc Association (BDA).
2
Energy Star is a registered trademark of Energy Star.
3
Macrovision is a registered trademark of Macrovision Corporation.
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All other trademarks are the property of their respective owners.
5
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated