TPF144
Features
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Description
TPF144 is a specially designed for consumer applications,
high-performance, low-cost video reconstruction filter, it
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.
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+.
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.
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.
1-SDTV Video Filter Support CVBS
3-HDTV Video Filter Support Y'Pb'Pr'-1080p, R'G'B' or
VGA/SVGA/XGA
Optimized 6
th
-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)
Wide Power Supply: +3.0V to +5.5V Single Supply
Robust ESD Protection:
-
Robust 8kV – HBM and 2kV – CDM ESD Rating
Green Product, MSOP-10-EP
和
TSSOP-14 Package
Applications
Video Signal Amplification
Set-Top Box Video Driver
PVR、DVD Player Video Buffer
Video Buffer for Portable or USB-Powered Video Devices
HDTV
Related Resources
AN-1201: Application notes of TPF1xx
Function Block
REV 1.0
www.3peakic.com
©2011 3PEAK INCORPORATED
TPF144
4-channel Video Amplifier with 1-CVBS and 3-1080p Full-HD Filters
Order Information
Operating
Order Number
Temperature
Range
Package
Marking
Information
Transport Media,
Quantity
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
1
1
1
3
2
3
4
3
4
5
4
5
2
10
7
6,7,8,9 2, 6, 9
9
5
8,13
6
11
10
7
12
11
8
13
12
10
14
14
Pin Name
CVBS IN
HD CH1 IN
HD CH2 IN
HD CH3 IN
+V
S
NC
GND
HD CH3 OUT
HD CH2 OUT
HD CH1 OUT
CVBS OUT
Function
SD Video Input, Channel 1
HD Video Input, Channel 2
HD Video Input, Channel 3
HD Video Input, Channel 4
Positive Power Supply
No Connection
Ground
HD Filtered Output, Channel 4
HD Filtered Output, Channel 3
HD Filtered Output, Channel 2
SD Filtered Output, Channel 1
Absolute Maximum Ratings*
Parameters
Power Supply, V
DD
to GND
Input Voltage
Output Current
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec)
Units
6.0
V
V
DD
+ 0.3V to GND - 0.3V
65
I
O
150
T
J
–45 to 85
T
A
–65 to 150
T
STG
300
TL
Value
V
IN
I
O
T
J
T
A
T
STG
TL
* Note:
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to
©2011 3PEAK INCORPORATED
~ 2 ~
REV 1.0
www.3peakic.com
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
V
DD
I
DD
I
CLAMP-DOWN
I
CLAMP-UP
V
CLAMP
R
IN
AV
ΔAV
V
OLS
V
OL
V
OH
PSRR
I
SC
PARAMETER
Supply Voltage Range
Quiescent current
(I
Q
)
(1)
CONDITIONS
MIN
3.0
TYP
MAX
5.5
UNITS
V
mA
mA
μA
mA
mV
MΩ
Input Electrical Specifications
V
DD
= 3.3V, V
IN
= 500mV, no load
V
DD
= 5.0V, V
IN
= 500mV, no load
V
IN
=300mV, measure current
V
Y
= -0.2V
I
Y
= -100μA
0.5V < V
Y
< 1V
V
IN
=0.5V,1V or 2V
R
L
=150Ω to GND
V
IN
= 0V, no load, input referred
V
IN
= -0.3V, R
L
=75Ω
V
IN
= 3V, R
L
=75Ω to GND (dual load)
ΔV
DD
= 3.3V to 3.6V
ΔV
DD
= 5.0V to 5.5V, 50Hz
V
IN
= 2V, 10Ω, output to GND
V
IN
=0.1V, output short to V
DD
65
65
7.6
53.1
7.8
63.7
38.2
34.0
-0.1
-1.1
0.03
1.5
-1.5
-40
0.5
5.9
-2
53
38.3
50.0
2.0
-1.7
0
3
6.01
47.6
61.8
5.1
+40
Clamp Discharge Current
Clamp Charge Current
Input Voltage Clamp
Input Impedance
Voltage Gain
Channel Mismatch
Output Level Shift Voltage
Output Voltage Low Swing
Output Voltage High Swing
Power Supply Rejection Ratio
Short-circuit current
6.03
+2
dB
%
mV
V
V
dB
dB
mA
mA
80
0.05
3.18
61
67
124
AC Electrical Specifications
f
-1dB
f
-3dB
Att
27MHz
dG
dP
THD
D/DT
X
TALK
SNR
R
OUT_AC
CLG
CLD
-1dB
Bandwidth
-3dB
Bandwidth
Stop Band
Attenuation
Differential Gain
Differential Phase
Total Harmonic
Distortion
Group Delay
Variation
Channel Crosstalk
Signal-to-Noise
Ration
SD Channel
FHD Channel
SD Channel
FHD Channel
SD Channel
FHD Channel
R
L
=150Ω
R
L
=150Ω
f = 27MHz
f =148MHz
Video input range 1V
Video input range 1V
8.2
63.2
9.0
71.5
57.2
39.0
0.4
0.7
0.1
0.15
5.4
6.0
9.1
72.9
10.5
80.1
MHz
MHz
dB
dB
0.8
1.1
0.2
%
°
%
ns
dB
dB
Ω
SD Channel
FHD Channel
SD Channel
FHD Channel
SD Channel
FHD Channel
f=1MHz, V
OUT
=1.4V
PP
f=10MHz, V
OUT
=1.4V
PP
f = 100kHz to 5MHz
f = 100kHz t0 60MHz
f = 1MHz, V
OUT
=1.4V
PP
f= 100kHz to 4.43MHz
f= 100kHz to 60MHz
f = 10MHz
400kHz to 3.58MHz and 4.43MHz
400kHz to 3.58MHz and 4.43MHz
-68
65
-74
69
64
0.5
0.18
5
0.4
Output Impedance
Chroma-Luma-Gain (SD Channel)
Chroma-Luma-Delay (SD Channel)
dB
ns
©2011 3PEAK INCORPORATED
~ 4 ~
REV 1.0
www.3peakic.com
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
-0.2
-0.4
-0.6
-0.8
-0.1dB@7MHz
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
1M
FREQUENCY (Hz)
10M
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
1M
10M
FREQUENCY (Hz)
100M
-0.1dB@50MHz
-1
100k
-1
100k
Figure1. Small-Scale Frequency Response
Figure2. Large-Scale Frequency Response
5
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
5
4
3
2
1
0
-1
-2
-3
-4
1M
FREQUENCY (Hz)
10M
V
DD
=3.3V
R
L
=150Ω
1M
10M
FREQUENCY (Hz)
100M
C
L
=20p
C
L
=15pF
C
L
=5pF
C
L
=20p
C
L
=15pF
C
L
=5pF
V
DD
=3.3V
R
L
=150Ω
-5
100k
-5
100k
Figure3. Gain Vs. Frequency With CLOAD (SD Channel)
Figure4. Gain Vs. Frequency With CLOAD(FHD Channel)
140.0
120.0
100.0
80.0
60.0
40.0
20.0
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
1M
10M
FREQUENCY (Hz)
100M
GROUP DELAY (ns)
GROUP DELAY (ns)
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
-5.0
-10.0
1M
10M
100M
FREQUENCY (Hz)
1G
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
0.0
100k
Figure5. Group Delay vs Frequency(SD Channel)
Figure6. Group Delay vs Frequency(FHD Channel)
DIY/开源硬件专区
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
