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THS7313 Datasheet(PDF) 1 Page - Texas Instruments

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No. de Pieza. THS7313
Descripción  3-Channel Low Power SDTV Video Amplifier with I2C Control, 6-dB Gain, SAG Correction, 2:1 Input MUX, and Selectable Input Bias Modes
Descarga  48 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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THS7313 Datasheet(HTML) 1 Page - Texas Instruments

 
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FEATURES
APPLICATIONS
DESCRIPTION
In A
Video
DAC /
Encoder
3.3 V
3.3 V
LPF
AC
Sync
TIP
Clamp
DC
+
-
1 kW
878 W
X1
DC +
135 mV
MUTE
2:1
675 W
150 W
AC
-
BIAS
In B
External
Input
SDA
I2C-A1
SCL
I2C-A0
8 MHz
Out
SAG
47 F
m
33 F
m
75 W
75 W
Video
Out
75 W
R
THS7313
SLOS483 – NOVEMBER 2005
3-Channel Low Power SDTV Video Amplifier with I2C Control, 6-dB Gain, SAG
Correction, 2:1 Input MUX, and Selectable Input Bias Modes
Set Top Box Output Video Buffering
3 SDTV Video Amplifiers for CVBS, S-Video,
Y'P'BP'R 480i/576i, or G'B'R' Video Systems
PVR/DVDR Output Buffering
USB/Portable Low Power Video Buffering
I2C™ Control of All Functions on Each
Channel
Integrated Low-Pass Filters
Fabricated
using
the
new
complimentary
– 5th Order, 8-MHz Butterworth
silicon-germanium (SiGe) BiCom-III process, the
• 0.5-dB Attenuation at 5.5 MHz
THS7313 is a low-power, single-supply 2.7-V to 5-V,
• 48-dB Attenuation at 27 MHz
3-channel integrated video buffer. It incorporates a 5th
Selectable Input Bias Modes
order
Butterworth
filter
which
is
useful
as
a
digital-to-analog converter (DAC) reconstruction filter
– AC-Coupled with Sync-Tip Clamp
or an analog-to-digital converter (ADC) anti-aliasing
– AC-Coupled with Bias
filter. The 8-MHz filter is a perfect choice for SDTV
– DC-Coupled with 135-mV Input Shift
video which includes composite (CVBS), S-Video,
Y’U’V’, G'B'R', and Y’P’BP’R 480i/576i.
– DC-Coupled
2:1 Input MUX Allows Multiple Input Sources
Each channel of the THS7313 is individually I2C
configurable for all functions which makes it flexible
Built-in 6-dB Gain (2 V/V)
for any application. Its rail-to-rail output stage allows
SAG Correction Capable
for both ac and dc coupling applications. The 6-dB
2.7-V to 5-V Single Supply Operation
gain along with the built-in SAG correction allows for
maximum flexibility as an output video buffer.
Individual Disable (<1
µA) and Mute Control
Rail-to-Rail Output:
The 16.6 mA total quiescent current at 3.3 V (55 mW)
makes it an excellent choice for USB powered or
– Output Swings within 100 mV from the Rails
portable video applications. While fully disabled, the
Which Allows AC or DC Output Coupling
THS7313 consumes less than 1
µA.
– Able to Drive up to 2 Video Lines – 75
The THS7313 is available in a small lead-free and
Low 16.6-mA (3.3 V) Total Quiescent Current
RoHS compliant TSSOP-20 package.
Low Differential Gain/Phase of 0.07% / 0.12
°
Figure 1. 3.3 V Single-Supply DC-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.
I2C is a trademark of Philips Electronics.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005, 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.


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