TPF144-TR [3PEAK]
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters;型号: | TPF144-TR |
厂家: | 3PEAK |
描述: | 4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters |
文件: | 总13页 (文件大小:406K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Description
Features
TPF144 is a specially designed for consumer applications,
high-performance, low-cost video reconstruction filter, it
1-SDTV Video Filter Support CVBS
3-HDTV Video Filter Support Y'Pb'Pr'-1080p, R'G'B' or
combine excellent video performance and low power
consumption perfectly. It incorporates one standard-definition
(CVBS) and three high-definition (HD) filter channels. All
filters feature 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 HD filters can be bypassed to support filters. The
HD filters can be bypassed to support 1080p60 video or up
to quad extended graphics array (QXGA) RGB video.
VGA/SVGA/XGA
Optimized 6th-order Butterworth Video reconstruction
filter:
CVBS Channel: -3dB at 9MHz
HD Channel: -3dB ≥ 72MHz
Support Multiple Input Biasing:
-Provide 80-mV Level-Shift when DC-Coupled
-Transparent Input Clamping when AC-Coupled
-Support External DC Biasing when AC-Coupled
Very Low Quiescent Current: 38.3 mA(at 3.3V, Typical)
6dB Gain(2V/V), Rail TO Rail Output
AC- or DC-Coupled Output Driving Dual Video Loads
(75Ω)
As part of the TP144 flexibility, the input can be configured
for ac- or dc-coupled inputs. The 84-mV output level shift
allows for a full sync dynamic range at the output with 0-V
input. The ac-coupled modes include a transparent sync-tip
clamp option for composite video (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 VS+.
Wide Power Supply: +3.0V to +5.5V Single Supply
Robust ESD Protection:
The TP144 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 38.3-mA total quiescent current at 3.3 V makes it
an excellent choice for power-sensitive video applications.
-
Robust 8kV – HBM and 2kV – CDM ESD Rating
Green Product, MSOP-10-EP 和 TSSOP-14 Package
Applications
TPF144 is available in MSOP-10 package (TPF144-V) and
TSSOP-14 package (TPF144-T). Its operation temperature
range is from −40°C to +85°C.
Video Signal Amplification
Set-Top Box Video Driver
Related Resources
AN-1201: Application notes of TPF1xx
PVR、DVD Player Video Buffer
Video Buffer for Portable or USB-Powered Video Devices
HDTV
Function Block
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Order Information
Operating
Marking
Transport Media,
Quantity
Order Number
Temperature
Range
Package
Information
TPF144-VR
TPF144-TR
TPF144U-TR
-40 to 85°C
-40 to 85°C
-40 to 85°C
MSOP-10-EP
TSSOP-14
TSSOP-14
TPF144
TPF144
TPF144U
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Pin configuration(Top View)
Pin Functions
Pin Number
Pin Name
CVBS IN
Function
1
3
4
5
2
1
2
1
3
4
5
7
SD Video Input, Channel 1
HD Video Input, Channel 2
HD Video Input, Channel 3
HD Video Input, Channel 4
Positive Power Supply
HD CH1 IN
HD CH2 IN
HD CH3 IN
+VS
3
4
10
6,7,8,9 2, 6, 9
NC
No Connection
9
6
5
8,13
10
GND
Ground
11
12
13
14
HD CH3 OUT
HD CH2 OUT
HD CH1 OUT
CVBS OUT
HD Filtered Output, Channel 4
HD Filtered Output, Channel 3
HD Filtered Output, Channel 2
SD Filtered Output, Channel 1
7
11
8
12
10
14
Absolute Maximum Ratings
*
Parameters
Value
Units
Power Supply, VDD to GND
Input Voltage
6.0
V
VIN
IO
VDD + 0.3V to GND - 0.3V
Output Current
65
IO
TJ
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec)
150
TJ
TA
–45 to 85
–65 to 150
300
TA
TSTG
TL
TSTG
TL
* Note: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
ESD, Electrostatic Discharge Protection
Minimum
Symbol
Parameter
Condition
Unit
Level
HBM
CDM
Human Body Model ESD
MIL-STD-883H Method 3015.8
8
2
kV
kV
Charged Device Model ESD JEDEC-EIA/JESD22-C101E
TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Electrical Characteristics All test condition is VDD = 3.3V, TA = +25°C, RL = 150Ω to GND, unless
otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Electrical Specifications
Supply Voltage Range
VDD
IDD
3.0
5.5
47.6
61.8
5.1
V
V
DD = 3.3V, VIN = 500mV, no load
38.3
50.0
2.0
-1.7
0
mA
mA
μA
Quiescent current (IQ) (1)
VDD = 5.0V, VIN = 500mV, no load
VIN=300mV, measure current
VY = -0.2V
ICLAMP-DOWN
ICLAMP-UP
VCLAMP
RIN
Clamp Discharge Current
Clamp Charge Current
Input Voltage Clamp
Input Impedance
1.5
-1.5
-40
0.5
mA
mV
MΩ
IY = -100μA
+40
0.5V < VY < 1V
3
VIN=0.5V,1V or 2V
RL=150Ω to GND
AV
Voltage Gain
dB
5.9
6.01
6.03
ΔAV
VOLS
VOL
Channel Mismatch
-2
+2
%
mV
V
Output Level Shift Voltage
Output Voltage Low Swing
Output Voltage High Swing
VIN = 0V, no load, input referred
VIN = -0.3V, RL =75Ω
53
80
0.05
3.18
61
124
VOH
VIN = 3V, RL =75Ω to GND (dual load)
ΔVDD = 3.3V to 3.6V
V
dB
dB
mA
mA
PSRR
ISC
Power Supply Rejection Ratio
ΔVDD = 5.0V to 5.5V, 50Hz
VIN = 2V, 10Ω, output to GND
VIN =0.1V, output short to VDD
67
65
65
Short-circuit current
AC Electrical Specifications
SD Channel
FHD Channel
SD Channel
FHD Channel
SD Channel
FHD Channel
7.6
53.1
7.8
8.2
63.2
9.0
71.5
57.2
39.0
0.4
0.7
0.1
0.15
5.4
6.0
-74
69
9.1
-1dB
f-1dB
RL=150Ω
RL=150Ω
MHz
MHz
Bandwidth
72.9
10.5
80.1
-3dB
Bandwidth
f-3dB
63.7
38.2
34.0
-0.1
-1.1
0.03
f = 27MHz
dB
dB
%
°
Stop Band
Att27MHz
Attenuation
f =148MHz
dG
dP
Differential Gain
Video input range 1V
Video input range 1V
f=1MHz, VOUT=1.4VPP
f=10MHz, VOUT=1.4VPP
f = 100kHz to 5MHz
f = 100kHz t0 60MHz
f = 1MHz, VOUT=1.4VPP
f= 100kHz to 4.43MHz
f= 100kHz to 60MHz
f = 10MHz
0.8
1.1
0.2
Differential Phase
SD Channel
FHD Channel
SD Channel
FHD Channel
Total Harmonic
Distortion
THD
%
Group Delay
Variation
D/DT
XTALK
SNR
ns
dB
dB
Channel Crosstalk
-68
65
SD Channel
Signal-to-Noise
Ration
FHD Channel
64
ROUT_AC
CLG
Output Impedance
0.5
0.18
5
Ω
dB
ns
Chroma-Luma-Gain (SD Channel) 400kHz to 3.58MHz and 4.43MHz
Chroma-Luma-Delay (SD Channel) 400kHz to 3.58MHz and 4.43MHz
0.4
CLD
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Typical Performance Characteristics All test condition is VDD = 3.3V, TA = +25°C, RL =
150Ω to GND, unless otherwise noted.
1
0.8
0.6
0.4
0.2
0
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-0.2
-0.4
-0.6
-0.8
-1
-0.1dB@50MHz
-0.1dB@7MHz
VDD=3.3V
RL=150Ω
CL=15pF
VDD=3.3V
RL=150Ω
CL=15pF
100k
1M
FREQUENCY (Hz)
10M
100k
1M
10M
100M
FREQUENCY (Hz)
Figure1. Small-Scale Frequency Response
Figure2. Large-Scale Frequency Response
5
5
4
3
CL=20p
2
CL=5pF
CL=15pF
CL=15pF
CL=20p
1
0
-1
-2
-3
-4
-5
CL=5pF
VDD=3.3V
VDD=3.3V
RL=150Ω
RL=150Ω
-5
100k
1M
10M
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure3. Gain Vs. Frequency With CLOAD (SD Channel)
Figure4. Gain Vs. Frequency With CLOAD(FHD Channel)
140.0
120.0
100.0
80.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
60.0
5.0
40.0
VDD=3.3V
VDD=3.3V
0.0
RL=150Ω
RL=150Ω
20.0
-5.0
CL=15pF
CL=15pF
0.0
-10.0
100k
1M
10M
100M
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure5. Group Delay vs Frequency(SD Channel)
Figure6. Group Delay vs Frequency(FHD Channel)
TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
0
-10
-20
-30
-40
-50
-60
-70
-80
0
-10
-20
-30
-40
-50
-60
-70
-80
VDD=3.3V
VDD=3.3V
1k
10k
100k
1M
10M
100M
1k
10k
100k
1M
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure7. PSRR Vs. Frequency(SD)
Figure8. PSRR Vs. Frequency(FHD)
0.9
0.8
0.7
0.6
0.5
0.4
2.0
1.5
1.0
0.5
0.0
VDD=+3.3V
RL=100Ω
VDD=+3.3V
RL=100Ω
VOUT=1VP-P
VOUT=200mVP-P
tRISE=57.1ns
tFALL=48.9ns
tRISE=35.8ns
tFALL=33.3ns
0
200
400
600
800
1000
1200
0
200
400
600
800
1000
1200
TIME (ns)
TIME (ns)
Figure9. Large-Signal Pulse Response Vs. Time(SD
Channel)
Figure10. Small-Signal Pulse Response Vs. Time(SD
Channel)
0.9
0.8
2.0
1.5
VDD=+3.3V
VDD=+3.3V
0.7
RL=100Ω
RL=100Ω
VOUT=1VP-P
1.0
0.5
0.0
V
OUT=200mVP-P
0.6
0.5
0.4
tRISE=3.25ns
tRISE=7.75ns
tFALL=7.41ns
tFALL=3.59ns
0
20
40
60
80
100 120 140 160
0
20
40
60
80 100 120 140 160
TIME (ns)
TIME (ns)
Figure11. Large-Signal Pulse Response Vs. Time(FHD
Channel)
Figure12. Large-Signal Pulse Response Vs. Time(FHD
Channel)
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Typical Application
STB / DVB / Blu-ray DVD
+3.3 V
+
4.7μF
0.1μF
75Ω Video Cable
75Ω Video Cable
75Ω Video Cable
75Ω
75Ω
75Ω
75Ω
220μF
220μF
220μF
220μF
OUT1
CVBS
R / Pr
G / Y
IN1
Clamp
Bias
CVBS
R / Pr
RSOURCE
RSOURCE
RSOURCE
Video
SoC
TPF144
Clamp
G / Y
75Ω Video Cable
B / Pb
B / Pb
Bias
RSOURCE
+Vs
GND
AC-coupling
Output
DAC Load Resistor
RSOURCE = DAC Load Resistor // SoC Output Resistor
Reference Design
Application Information
The TPF144 is targeted for systems that require a single
standard-definition (CVBS) video output for CVBS video
support along with three high-definition (HD) video
outputs. Although it can be used for numerous other
applications, the needs and requirements of the video
signal are the most important design parameters of the
TPF144. The TPF144 incorporates many features not
typically found in integrated video parts while consuming
very low power.
may offset the input above its positive range.
The TPF144 features an internal sync clamp and
offset function to level shift the entire video signal to
the best level before it reaches the input of the
amplifier stage. These features are also helpful to
avoid saturation of the output stage of the amplifier by
setting the signal closer to the best voltage range.
The simplified block diagram of the TPF144 in Page-1.
The AC coupled video sync signal is pulled negative
by a current source at the input of the comparator
amplifier. When the sync tip goes below the
comparator threshold the output comparator is driven
negative, The PMOS device turns on clamping sync
tip to near ground level. The network triggers on the
sync tip of video signal.
Internal Sync Clamp
The typical embedded video DAC operates from a
ground referenced single supply. This becomes an
issue because the lower level of the sync pulse output
may be at a 0V reference level to some positive level.
The problem is presenting a 0V input to most single
supply driven amplifiers will saturate the output stage
of the amplifier resulting in a clipped sync tip and
degrading the video image. A larger positive reference
Droop Voltage and DC
Restoration
Selection of the input AC-coupling capacitance is
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
based on the system requirements. A typical sync tip
width of a 64μs NTSC line is 4μs during which clamp
circuit restores its DC level. In the remaining 60μs
period, the voltage droops because of a small
constant 2.0μA sinking current. If the AC-coupling
capacitance is 0.1μF, the maximum droop voltage is
about 1mV which is restored by the clamp circuit. The
maximum pull-up current of the clamp circuit is 1.7mA.
For a 4μs sync tip width and 0.1μF capacitor, the
maximum restoration voltage is about 80mV.
portable video applications. Additionally, this solution
completely eliminates the issue of field tilt in the lower
frequency. The trade off is greater demand of supply
current. Typical load current for AC coupled is around
1mA, compared to typical 6.6mA used when DC
coupling.
Output Drive Capability and
Power Dissipation
With the high output drive capability of the TPF144, it
is possible to exceed the +125°C absolute maximum
junction temperature under certain load current
conditions. Therefore, it is important to calculate the
maximum junction temperature for an application to
determine if load conditions or package types need to
be modified to assure operation of the amplifier in a
safe operating area. The maximum power dissipation
allowed in a package is determined according to
Equation:
The line droop voltage will increase if a smaller
AC-coupling capacitance is used. For the same
reason, if larger capacitance is used the line droop
voltage will decrease. Table 1 is droop voltage and
maximum restoration voltage of the clamp for typical
capacitance.
Table 1. Maximum restoration voltage and droop voltage
of Y and CVBS signals for different capacitance
CAP VALUE
(nF)
DROOP IN 60μs
CHARGE IN 4μs
(mV)
(mV)
TJMAX TAMAX
PDMAX
=
100
1.2
68
JA
1,000
0.12
6.8
Where:
TJMAX = Maximum junction temperature
TAMAX = Maximum ambient temperature
ΘJA = Thermal resistance of the package
Low Pass Filter--Sallen Key
The Sallen Key is a classic low pass configuration.
This provides a very stable low pass function, and in
the case of the TPF144, two six-pole roll-off at around
9MHz and 72MHz. The six-pole function is
accomplished with an RC low pass network placed in
series with and before the Sallen Key.
The maximum power dissipation actually produced by
an IC is the total quiescent supply current times the
total power supply voltage, plus the power in the IC
due to the load, or: for sourcing:
VOUT
PDMAX =Vs ISMAX +(Vs VOUT)
RL
Where:
VS = Supply voltage
Output Couple
ISMAX = Maximum quiescent supply current
VOUT = Maximum output voltage of the application
RLOAD = Load resistance tied to ground
TPF144 output could support both “AC Couple” and
“DC Couple”, if use “AC Couple”, this capacitor is
typically between 220-μF and 1000-μF, although
470-μF is common. This value of this capacitor must
be this large to minimize the line tilt (droop) and/or
field tilt associated with ac-coupling as described
previously in this document.
By setting the two PDMAX equations equal to each
other, we can solve the output current and RLOAD to
avoid the device overheat.
The TPF144 internal sync clamp makes it possible to
DC couple the output to a video load, eliminating the
need for any AC coupling capacitors, thereby saving
board space and additional expense for capacitors.
This makes the TPF144 extremely attractive for
Power Supply Bypassing Printed
Circuit Board Layout
As with any modern operational amplifier, a good
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
printed circuit board layout is necessary for optimum
performance. Lead lengths should be as short as
possible. The power supply pin must be well bypassed
to reduce the risk of oscillation. For normal single
supply operation, a single 4.7μF tantalum capacitor in
parallel with a 0.1μF ceramic capacitor from VS+ to
GND will suffice.
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
VIDEO FILTER DRIVER SELECTION GUIDE
Channel
P/N
Product Description
-3dB Bandwidth
Package
SC70-5
Low power, enable function and
SAG correction, 1 channel 6th order
9MHz
TPF110
/TPF110L
1-SD
9MHz
SOT23-6
Low power 3 channel, 6th-order
9MHz SD video filter
TPF113
TPF114
TPF116
3-SD
4-SD
6-SD
9MHz
9MHz
9MHz
SO-8
Low power 4 channel, 6th-order
9MHz SD video filter
MSOP-10
TSSOP-14
TSSOP-14
Low power 4 channel, 6th-order
9MHz SD video filter for CVBS,
SVIDEO
3 channel 6th-order 13.5MHz,
960H/720H-CVBS video filter or
Y’Pb’Pr 480P/576P video filter
Low power 3 channel, 6th-order
36MHz HD video filter
TPF123
3-ED
3-HD
13.5MHz
36MHz
SO-8
SO-8
TPF133
TPF134
Low power 3 channel, 6th-order
36MHz HD video filter and 1 channel
SD video filter
1-SD&
3-SD
9MHz
MSOP-10
36MHz
TSSOP-14
Low power 3 channel, 6th-order
36MHz HD video filter and 3 channel
SD video filter
TPF136
3-SD&
3-HD
9MHz
TSSOP-20
SO-8
36MHz
Low power 3 channel, 6th-order
72MHz Full HD video filter
Low power 3 channel, 6th-order
72MHz Full HD video filter and 1
channel SD video filter
TPF143
TPF144
3-FHD
72MHz
1-SD&
3-FHD
9MHz
MSOP-10
72MHz
TSSOP-14
Low power 3 channel, 6th-order
72MHz Full HD video filter and3
channel SD video filter
TPF146
TPF153
3-SD&
3-FHD
9MHz
TSSOP-20
72MHz
SO-8
Low power 3 channel, 6th-order
220MHz Full HD video filter
3-CH
220MHz
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Package Outline Dimensions
10 Lead MSOP Package——Main Body 3.00 mm [MSOP_N]
Units
Inches
Millimeters
MIN
TYP
MAX
MIN
TYP
10
MAX
Dimensions
n
e
10
.020
0.50
1.00
A
.031
.047
0.80
1.20
A2
A1
E1
E
.030
.000
.185
.114
.114
.016
0°
.038
.008
.201
.122
.122
.026
6°
0.76
0.00
4.70
2.90
2.90
0.41
0°
0.97
0.20
5.10
3.10
3.10
0.65
6°
3.00
3.00
D
L
Φ
C
.006
.012
0.152
0.30
b
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Package Outline Dimensions
14 Lead TSSOP Package——Main Body 4.40 mm [TSSOP_N]
Units
Inches
Millimeters
MIN
TYP
MAX
MIN
TYP
14
MAX
Dimensions
n
e
14
.026
.043
0.65
1.10
A
A2
A1
E1
E
.031
.039
0.80
1.00
.002
.246
.169
.193
.002
1°
.006
.258
.177
.201
.028
7°
0.05
6.25
4.30
4.90
0.50
1°
0.15
6.55
4.50
5.10
0.70
7°
4.40
5.00
D
L
Φ
c
.004
.007
.006
.008
.012
0.09
0.19
0.20
0.30
b
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TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
IMPORTANT NOTICE
"PRELIMINARY" PRODUCT INFORMATION DESCRIBES PRODUCTS THAT ARE IN PRODUCTION, BUT FOR WHICH FULL
CHARACTERIZATION DATA IS NOT YET AVAILABLE.
3PEAKIC MICROELECTRONICS CO. LTD BELIEVES THAT THE INFORMATION CONTAINED IN THIS DOCUMENT IS ACCURATE AND
RELIABLE. HOWEVER, THE INFORMATION IS SUBJECT TO CHANGE WITHOUT NOTICE AND IS PROVIDED “AS IS” WITHOUT
WARRANTY OF ANY KIND (EXPRESS OR IMPLIED). CUSTOMERS ARE ADVISED TO OBTAIN THE LATEST VERSION OF RELEVANT
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ACKNOWLEDGMENT, INCLUDING THOSE PERTAINING TO WARRANTY, INDEMNIFICATION, AND LIMITATION OF LIABILITY. NO
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