TPF131

36M HD Composite Video Filter Driver

Rev. A

www.3peakic.com

~ 5 ~

©2014 3PEAK INCORPORATED

Output Drive Capability and

Power Dissipation

With the high output drive capability of the TPF131, 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:

Where：

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:

Where：

By setting the two PDMAX equations equal to each

other, we can solve the output current and RLOAD to

avoid the device overheat.

Power Supply Bypassing Printed

Circuit Board Layout

As with any modern operational amplifier, a good

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.

 

VIDEO FILTER DRIVER SELECTION GUIDE

P/N

Product Description

Channel

-3dB Bandwidth

Package

TPF110

/TPF110L

Low power, enable function and

SAG correction, 1 channel 6

9MHz

1-SD

9MHz

SC70-5

SOT23-6

TPF113

Low power 3 channel, 6th-order

9MHz SD video filter

3-SD

9MHz

SO-8

TPF114

Low power 4 channel, 6th-order

9MHz SD video filter

4-SD

9MHz

MSOP-10

TSSOP-14

TPF116

Low power 4 channel, 6th-order

9MHz SD video filter for CVBS,

SVIDEO

6-SD

9MHz

TSSOP-14

TPF123

3 channel 6th-order 13.5MHz,

960H/720H-CVBS video filter or

Y’Pb’Pr 480P/576P video filter

3-ED

13.5MHz

SO-8

TPF133

Low power 3 channel, 6th-order

36MHz HD video filter

3-HD

36MHz

SO-8

TPF134

Low power 3 channel, 6th-order

36MHz HD video filter and 1 channel

SD video filter

1-SD&

3-SD

9MHz

36MHz

MSOP-10

TSSOP-14

TPF136

Low power 3 channel, 6th-order

3-SD&

9MHz

TSSOP-20

=

JMAX

AMAX

MAX

JA

TT

PD





ss

=+

OUT

MAX

SMAX

OUT

L

V

PD

V

I

V

V

R





（）