THS7319 Datasheet, PDF (1/34 Pages) Texas Instruments – 3-Channel, Very Low Power Video Amplifiers with EDTV Filters and 6-dB Gain

THS7319
www.ti.com.............................................................................................................................................................. SBOS468A – JUNE 2009 – REVISED JULY 2009
3-Channel, Very Low Power Video Amplifiers with EDTV Filters and 6-dB Gain
FEATURES
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•23 Very Low Total Quiescent Current:
3.4 mA at 3.3 V
• 0.15-µA Total Disabled Supply Current
• Third-Order Butterworth Low-Pass Filters:
–1 dB at 17 MHz
–3 dB at 20 MHz
21-dB Attenuation at 43 MHz
Supports 480p/576p Y’P’_BP’_R or R’G’B’ Video
Supports CVBS, S-Video, 480i/576i Y’P’_BP’_R, or
Y’U’V’ in Oversampled Systems
• DC-Coupled Input with 150-mV Output Shift
• Built-in 6-dB Gain (2 V/V)
• +2.6-V to +5-V Single-Supply Operation
• Rail-to-Rail Output Allows AC or DC Output
Coupling
• Low Differential Gain/Phase of 0.05%/0.03°
• Ultra-Small, MicrostarCSP™ 9-Ball Package
– Tiny PCB Area: 1,5 mm × 1,5 mm
– Very Low Profile Height: 0,45 mm (max)
APPLICATIONS
• Personal Media Players
• Digital Cameras
• Cellular Phone Video Output Buffering
• USB/Portable Low-Power Video Buffering
DESCRIPTION
Fabricated using the revolutionary, complementary
Silicon-Germanium (SiGe) BiCom3X process, the
THS7319 is a very low-power, 2.6-V to 5-V
single-supply, three-channel, integrated filter video
buffer. This device is ideal for battery-powered
applications where size and power are critical
parameters. Total quiescent current is only 3.4 mA at
3.3 V and can be reduced to 0.15 µA while disabled.
The THS7319 incorporates three enhanced definition
(ED) filter channels with third-order Butterworth
characteristics. These filters are useful as
digital-to-analog converter (DAC) reconstruction filters
or as analog-to-digital converter (ADC) anti-aliasing
filters supporting 480p/576p Y’P’_BP’_R and R'G'B'
video. The THS7319 is also ideal for oversampled
systems that produce standard-definition (SD) signals
including CVBS, S-Video, 480i/576i Y’P’_BP’_R, Y’U’V’,
and R’G’B’.
The THS7319 is designed for dc-coupled inputs. To
mitigate any DAC/encoder termination interaction, the
input impedance is a very high 2.4 MΩ. The 150-mV
output level shift allows for a full sync dynamic range
at the output with a 0-V input that prevents sync
crushing. The rail-to-rail output stage supports both
ac and dc line driving.
The THS7319 is offered in a RoHS-compliant
ultra-small MicrostarCSP 9-ball package.
Channel 1
Channel 2
Channel 3
x1
R
x1
R
x1
R
Level
Shift
Level
Shift
Level
Shift
3-Pole
20-MHz
LPF
3-Pole
20-MHz
LPF
3-Pole
20-MHz
LPF
6 dB
6 dB
6 dB
75 W ^{Out 1}
75 W ^{Out 2}
75 W ^{Out 3}
75 W
75 W
75 W
+2.6 V to +5 V Enable
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.
MicrostarCSP is a trademark of Texas Instruments, Incorporated.
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All other trademarks are the property of their respective owners.
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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 © 2009, Texas Instruments Incorporated