THS7318
www.ti.com
SLOS517C – JANUARY 2007 – REVISED DECEMBER 2007
3-Channel Low-Power EDTV/SDTV Video Line Driver With Low-Pass Filters
FEATURES
1
•
•
•
•
•
•
•
2
Single Supply: 2.85 V to 5 V
Low Total Supply Current = 4.5 mA (max)
Low Power Mode: 5 µW (max)
Integrated DAC Reconstruction Filters
Video Line Driver Outputs with 6 dB Gain
Rail-to-Rail Output
RoHS Compliant 9-Pin Wafer Scale Package
APPLICATIONS
•
•
•
•
Personal Media Players
Digital Cameras
Cellular Phone Video Output Buffering
USB/Portable Low Power Video Buffering
DESCRIPTION
The THS7318 is a very low power single-supply 3
channel device designed to process Y’, P’B, P’R
enhanced definition TV and Y’, C’, and CVBS
standard definition TV signals. It integrates circuitry to
perform signal processing commonly required in
video output applications.
All
channels
incorporate
3rd-order
20-MHz
Butterworth DAC reconstruction filters designed for
video systems with 54 MSPS DAC sampling rates
like NTSC/PAL 480p/576p EDTV and 480i/576i SDTV
video.
Rail-to-Rail output drivers on all channels allow for
both ac and dc coupled outputs.
The low quiescent current makes it an excellent
choice for USB powered or portable video
applications.
The THS7318 is available in a 9-pin NanoFree™
wafer scale package. It is specified for operation from
–40°C to +85°C.
THS7318 BLOCK DIAGRAM
-
+
Y’ IN
LPF
6 dB
Y’ OUT
LPF
6 dB
PB’ OUT /
CVBS OUT
LPF
6 dB
PR’ OUT /
C’ OUT
DC Offset
-
PB’ IN /
CVBS IN
+
DC Offset
-
PR’ IN /
C’ IN
+
DC Offset
EN
Bias
Control
GND
1
2
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.
NanoFree is a trademark of Texas Instruments.
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 © 2007, Texas Instruments Incorporated
THS7318
www.ti.com
SLOS517C – JANUARY 2007 – REVISED DECEMBER 2007
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted) (1)
VSS
Supply voltage, VS+ to GND
VI
Input voltage
IO
Output current
Continuous power dissipation
Maximum junction temperature
Tstg
Storage temperature range
TA
Ambient operating temperature range
ESD ratings
(2)
(3)
UNIT
5.5
V
–0.4 to VS+
V
±100
mA
See Dissipation Rating Table
Any condition
TJ
(1)
VALUE
(2)
Continuous operation, long term reliability (3)
150
°C
125
°C
–65 to 150
°C
–40 to 85
°C
HBM
2000
V
CDM
1500
V
MM
200
V
Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied Exposure to absolute maximum rated conditions for extended periods may degrade device reliability.
The absolute maximum junction temperature under any condition is limited by the constraints of the silicon process.
The absolute maximum junction temperature for continuous operation is limited by the package constraints. Operation above this
temperature may result in reduced reliability and/or lifetime of the device.
DISSIPATION RATINGS (1)
PACKAGE
θJC
(°C/W)
θJA
(°C/W)
38
105
YZF
(1)
(2)
POWER RATING (2)
(TJ = 125°C)
TA = 25°C
TA = 70°C
950 mW
428 mW
This data was taken with the JEDEC High-K test PCB.
Power rating is determined with a junction temperature of 125°C. This is the point where distortion starts to substantially increase and
long-term reliability starts to be reduced. Thermal management of the final PCB should strive to keep the junction temperature at or
below 125°C for best performance and reliability.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
VS+
2
Supply voltage
Submit Documentation Feedback
MIN
MAX
2.85
5
UNIT
V
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): THS7318
THS7318
www.ti.com
SLOS517C – JANUARY 2007 – REVISED DECEMBER 2007
PACKAGING/ORDERING INFORMATION
PACKAGED DEVICES
THS7318YZFT
THS7318YZFR
(1)
PACKAGE TYPE (1)
PART CODE
Wafer Scale 9-pin
BYR
TRANSPORT MEDIA,
QUANTITY
Tape and Reel, 250
Tape and Reel, 3000
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at www.ti.com.
NanoFree™ Placement and Removal Procedures
These procedures are generic guidelines to rework NanoFree™ packages assembled on a 0.056-inch thick FR4
board. It’s recommended to modify heating profiles for different board thicknesses and equipment used. The
assembly process recommended below should be used with a new device. Do not reuse the part after it is
removed.
Air-Vac Engineering (www.air-vac-eng.com) has established NanoFreeTM reflow profiles for their Hot Gas
(convection) rework equipment DRS-24NC. The NMX090DVG nozzle is recommended for use with the YZF
package. Customers can use other comparable hot gas (convection) equipment and tooling.
Placement
1. Apply flux paste to component
2. Align device over pads
3. Place device on board. Care must be taken to prevent over-travel during placement which may damage the
part or vacuum tip.
4. Raise nozzle 0.05"
5. Preheat board to 90°C, nozzle warming up 20% air flow, 125°C
6. Soak Stage—20% air flow, 225°C, 90 seconds
7. Ramp Stage—20% air flow, 335°C, 30 seconds
8. Reflow Stage—25% air flow, 370°C, 65 seconds
9. Cool down Stage—40% air flow, 25°C, 50 seconds
Removal
1. Apply flux paste to component
2. Align Nozzle over part to be removed
3. Maintain nozzle 0.050"over device. Care must be taken to prevent over-travel of the vacuum tip which may
damage the part or vacuum tip when measuring this distance.
4. Preheat board to 90°C, nozzle warming up 20% air flow, 125°C
5. Soak Stage—20% air flow, 225°C, 90 seconds
6. Ramp Stage—20% air flow, 335°C, 30 seconds
7. Reflow Stage—25% air flow, 370°C, 65 seconds
8. Enable Vacuum at the end of the reflow cycle, lower vacuum nozzle, and remove part
9. Cool down Stage—40% air flow, 25°C, 50 seconds
10. Turn off the vacuum and remove part from nozzle.
11. Care should be used if the device is to be returned to TI for failure analysis. Using any metal tweezers or
rough handling can damage the part, and render it un-analyzable.
Submit Documentation Feedback
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): THS7318
3
THS7318
www.ti.com
SLOS517C – JANUARY 2007 – REVISED DECEMBER 2007
ELECTRICAL CHARACTERISTICS
VS+ = 3.3V, 27°C, Y’ and P’R / C’ channels: RL = 150 Ω and CL = 6.2 pF to GND P’B / CVBS channel: 75 Ω and CL = 6.2 pF to
GND (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
2.85
3.3
5
UNIT
TEST
LEVEL (1)
V
B
DC CHARACTERISTICS
VSS
Supply voltage range
IQ
Quiescent supply current
EN = High
VSD
Shutdown supply current
EN = Low
Output DC level shift voltage
All channels
Input bias current
2.8
3.5
4.5
mA
A
0.150
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