TPF1441
72M HD Composite Video Filter Driver with Comparator
Feartures
Wide Power Supply: +3.0V to +5.5V Single Supply
Robust ESD Protection:
Robust 8kV – HBM and 2kV – CDM ESD Rating
Green Product, SOP-8 Package
Description
The TPF1441 is a low power, 72M HD composite video filter
and comparator on a single chip. Drawing less than 11.5mA
supply current over the full operating temperature range,
TP1441 operates from a single 3.0V to 5.5V power supply.
TPF1441 integrate high-performance low-cost 72MHz
composite video reconstruction filter, it combine excellent video
performance
and
low
power
consumption
perfectly.
It
Video Filter:
HDTV Video Filter Support Composite 1080p/60
Optimized 6th-order Butterworth Video reconstruction filter：
HD Channel: -3dB BW 72MHz
incorporates one high-definition (HD) filter channel. The filter
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 HDCVI 1080i/720p video.
The
TPF1441’s
on-board
comparator
incorporates
3PEAK’s proprietary and patented design techniques to achieve
the ultimate combination of high-speed (68ns propagation delay
under 3.0~5.5V wide supply range) and low power consumption ,
The internal input hysteresis eliminates output switching due to
internal input noise voltage, reducing current draw. The push-
pull output supports rail-to-rail output swing, and interfaces with
CMOS/TTL logic.
TPF1441 is available in SOP-8 package (TPF1441-SR). Its
operation temperature range is from −40°C to +85°C.
Support Multiple Input Biasing:
Provide 80-mV Level-Shift when DC-Coupled
Very Low Quiescent Current: 11.5 mA(at 3.3V, Typical)
6dB Gain(2V/V), Rail to Rail Output
AC- or DC-Coupled Output Driving Dual Video Loads (75Ω)
Comparator:
Fast Response Time: 68 ns Propagation Delay
Offset Voltage: ± 3.0 mV Maximum
Internal Hysteresis Ensures Clean Switching
Push-Pull, CMOS/TTL Compatible Output
Applications
Video Signal Amplification
Set-Top Box Video Driver
PV、DVD Player Video Buffer
Video Buffer for Portable or USB-Powered Video Devices
HDTV
Related Resources
AN-1201:Application notes of TPF1XX
Pin Configuration (Top View)
Pin Name
AIN
Pin Function
Non-Inverting Input of the Comparator
Comparator Output
Inverting Input of Comparator
HD video input, LPF = 72 MHz
Positive Power Supply
Ground
HD video output, LPF = 72 MHz
High on this pin logic low to shut down the device.
Range: Logic high enables the device and logic low
Shut down the device. This pin defaults to logic high
if left open.
AIN
SHDN
HD OUT
+Vs
1
2
3
4
8
VREF
DOUT
GND
HD IN
DOUT
VREF
HD IN
+V
S
TPF1441
8 LEAD SOIC
7
6
5
GND
HD OUT
SHDN
www.3peakic.com.cn
1 / 12
Rev.A.2
TPF1441
72M HD Composite Video Filter Driver with Comparator
Function Block
TPF1441
+Vs
gm
80mV
Level
Shift
LPF
Sync-Tip Clamp
(DC Restore)
6
th
-order
FHD Filter
6dB
HD Input
VREF
DOUT
AIN
+Vs
SHDN
GND
Order Information
Order Number
TPF1441-SR
TPF1441-VR
Operating Temperature Range
-40 to 85°
C
-40 to 85°
C
Package
8-Pin SOP
8-Pin MSOP
Marking Information
TPF1441
TPF1441
Transport Media, Quantity
Tape and Reel, 4000
Tape and Reel, 3000
Absolute Maximum Ratings*
Parameters
Power Supply, V
DD
to GND
V
IN
I
O
T
J
T
A
T
STG
TL
θ
JA
Input Voltage
Output Current
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec)
8-Lead SOP
Value
6.0
V
DD
+ 0.3V to GND - 0.3V
65
150
–45 to 85
–65 to 150
300
158
mA
°
C
°
C
°
C
°
C
°
C/W
Units
V
* Note:
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to
any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
(1) This data was taken with the JEDEC low effective thermal conductivity test board.
(2) This data was taken with the JEDEC standard multilayer test boards.
ESD, Electrostatic Discharge Protection
Symbol
HBM
CDM
Parameter
Human Body Model ESD
Charged Device Model ESD
Condition
MIL-STD-883H Method 3015.8
JEDEC-EIA/JESD22-C101E
Minimum Level
8
2
Unit
kV
kV
www.3peakic.com.cn
2 / 12
Rev.A.2
TPF1441
72M HD Composite Video Filter Driver with Comparator
Electrical Characteristics-Video Filter Part
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
V
DD
I
DD
I
CLAMP-DOWN
I
CLAMP-UP
V
CLAMP
R
IN
AV
V
OLS
V
OL
V
OH
PSRR
Supply Voltage Range
V
DD
= 3.3V, V
IN
= 500mV, no load
Quiescent current (I
Q
)
(1)
V
DD
= 5.0V, V
IN
= 500mV, no load
Clamp Discharge Current
Clamp Charge Current
Input Voltage Clamp
Input Impedance
Voltage Gain
Output Level Shift Voltage
Output Voltage Low Swing
Output Voltage High Swing
Power Supply Rejection Ratio
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
I
SC
V
IH
V
IL
t
ON
t
OFF
Short-circuit current
V
IN
=0.1V, output short to V
DD
Disable Threshold
Enable Threshold
Enable Time
Disable Time
V
DD
= 3.0V to 5.5V
V
DD
= 3.0V to 5.5V
V
IN
= 500mV, V
OUT
to 1%
V
IN
= 500mV, V
OUT
to 1%
1000
1000
65
1.6
0.4
mA
V
V
ns
ns
65
0.6
-1.5
-40
0.5
5.91
54
15
2.0
-1.7
0
3
6.01
80
0.05
3.18
61
67
6.03
124
+40
18.53
4.8
mA
μA
mA
mV
MΩ
dB
mV
V
V
dB
dB
mA
3.0
11.5
5.5
14.27
V
mA
AC Electrical Specifications
f
-1dB
f
-3dB
dG
dP
THD
-1dB Bandwidth
-3dB Bandwidth
Differential Gain
Differential Phase
Total Harmonic
Distortion
Group
Delay
Variation
HD Channel
f=22MHz, V
OUT
= 1.4V
PP
f = 100kHz to 27MHz
HD Channel
0.6
2.2
%
ns
HD Channel
HD Channel
R
L
=150Ω
R
L
=150Ω
Video input range 1V
Video input range 1V
f=10MHz, V
OUT
=1.4V
PP
53.1
63.7
63.2
71.5
0.4
0.7
0.15
72.9
80.1
MHz
MHz
%
°
%
D/DT
f = 100kHz to 60MHz
f = 1MHz, V
OUT
=1.4V
PP
f= 100kHz to 60MHz
f = 10MHz
-68
6.0
-74
64
0.5
ns
dB
dB
Ω
X
TALK
SNR
R
OUT_AC
Channel Crosstalk
Signal-to-
Noise Ration
HD Channel
Output Impedance
*Note:
(1). 100% tested at TA=25°
C.
www.3peakic.com.cn
3 / 12
Rev.A.2
TPF1441
72M HD Composite Video Filter Driver with Comparator
Electrical Characteristics-Comparator Part
All test condition is VDD = 3.3V, TA = +25° VIN+ = VDD, VIN- = 1.2V, RPU=10kΩ, CL =15pF, unless otherwise noted.
C,
SYMBOL
V
DD
V
OS
V
OS
TC
V
HYST
V
HYST
TC
I
B
I
OS
R
IN
C
IN
CMRR
V
CM
PSRR
V
OH
V
OL
I
SC
I
Q
t
R
t
F
T
PD+
T
PD-
T
PDSKEW
PARAMETER
Supply Voltage
Input Offset Voltage
Note 1
Input Offset Voltage Drift
Note 1
Input Hysteresis Voltage
Note 1
Input Hysteresis Voltage Drift
Note 1
Input Bias Current
Input Offset Current
Input Resistance
Input Capacitance
Common Mode Rejection Ratio
Common-mode Input Voltage Range
Power Supply Rejection Ratio
High-Level Output Voltage
Low-Level Output Voltage
Output Short-Circuit Current
Quiescent Current per Comparator
Rising Time
Falling Time
Propagation Delay (Low-to-High)
Propagation Delay (High-to-Low)
Propagation Delay Skew
Overdrive=100mV, V
IN-
=1.2V
Overdrive=100mV, V
IN-
=1.2V
Overdrive=100mV, V
IN-
=1.2V
I
OUT
=-1mA
I
OUT
=1mA
Sink or source current
25
46
5
5
68
72
-4
58
Differential
Common Mode
V
CM
= V
SS
to V
DD
50
V
DD
-0.2
60
V
DD
-0.3
V
SS
+0.3
75
V
CM
= 1.2V
V
CM
= 1.2V
V
CM
= 1.2V
V
CM
= 1.2V
V
CM
= 1.2V
4
CONDITIONS
MIN
3
-3
±0.6
0.3
6
20
6
4
> 100
2
4
70
V
SS
+0.2
8
TYP
MAX
5.5
+3
UNITS
V
mV
μV/°
C
mV
μV/°
C
pA
pA
GΩ
pF
dB
V
dB
V
V
mA
μA
ns
ns
ns
ns
ns
Note 1:
The input offset voltage is the average of the input-referred trip points. The input hysteresis is the difference between the
input-referred trip points.
www.3peakic.com.cn
4 / 12
Rev.A.2
TPF1441
72M HD Composite Video Filter Driver with Comparator
Typical Performance Characteristics-Video Filter Part
All test condition is VDD = 3.3V, TA = +25°C, RL = 150Ω to GND, unless otherwise noted.
5
4
NORMALIZED GAIN (dB)
3
2
1
0
-1
-2
-3
-4
-3dB@72MHz
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
1M
10M
FREQUENCY (Hz)
100M
-5
100k
Figure3. Small-Scale Frequency Response
1
0.8
NORMALIZED GAIN (dB)
Figure4. Large-Scale Frequency Response
0
-100
-200
-300
-400
-500
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
1M
10M
FREQUENCY (Hz)
100M
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-0.1dB@50MHz
V
DD
=3.3V
R
L
=150Ω
C
L
=15pF
1M
10M
FREQUENCY (Hz)
100M
-1
100k
PHASE (
O
)
-600
100k
Figure5. Gain Vs. Frequency With CLOAD
Figure6. Gain Vs. Frequency
Figure7. Group Delay vs Frequency
Figure8. Stop Band Attenuation
www.3peakic.com.cn
5 / 12
Rev.A.2
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
