Integrated Triple Video Filter
for High Definition Video
ADA4417-3
Rev. A
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FEATURES
Optimized for high definition video
Sixth-order Butterworth filters
−1 dB bandwidth of 38 MHz
44 dB rejection at 75 MHz
5 ns group delay variation
Fixed throughput gain of ×2
0.06% differential gain
0.21° differential phase
Pin selectable output offset (DCO)
Single-supply operation
3.3 V to 5 V range
Rail-to-rail output
Output ESD protection exceeds 8 kV
Small packaging: 10-lead MSOP
APPLICATIONS
Set-top boxes
HDTVs
Projectors
DVD players/recorders
Personal video recorders
FUNCTIONAL BLOCK DIAGRAM
Y/G IN
×2
Y/G OUT
Pb/B IN
×2
Pb/B OUT
Pr/R IN
DCO
DISABLE
×2
×1
×1
×1
Pr/R OUT
36MHz
36MHz
36MHz
ADA4417-3
06221-001
Figure 1.
GENERAL DESCRIPTION
The ADA4417-3 is a low cost, fully integrated, video
reconstruction filter specifically designed for consumer high
definition video. With 1 dB frequency flatness out to 38 MHz,
and 44 dB of rejection at 75 MHz, the ADA4417-3 can handle
the most demanding HD video applications.
The ADA4417-3 operates on a single 3.3 V to 5 V supply. It is
well-suited for applications where power consumption is
critical. A disable feature allows for further power conservation
by reducing the supply current to 10 µA (typical) when the
device is not in use. With rail-to-rail output, it can be efficiently
used on a 3.3 V supply, while providing the user with a 2 V p-p
output. The buffers can drive two 75 Ω terminated loads, either
dc- or ac-coupled.
The ADA4417-3 also has an output dc offset function that can
operate in two states. When the DCO pin is tied to V
CC
, the
video signal at the output is offset by 200 mV. When the DCO
pin is tied to ground, the output dc level follows the input level.
The ADA4417-3 is available in a 10-lead MSOP package and is
rated for operation over the extended industrial temperature
range of −40°C to +85°C.
