The MAX7453 is a low-cost, triple-channel video reconstruction
filter for S-video and CVBS video-signal applications.
This device is ideal for anti-aliasing and DAC
smoothing video applications such as set-top boxes,
DVD players, hard-disk recorders (HDRs), and personal
video recorders. This filter operates from a single +5V
supply. It is optimized for NTSC, PAL, and standard-definition
TV (SDTV) video systems.
Each channel consists of a lowpass filter and an output
buffer capable of driving one (YOUT, COUT) or two
(CVOUT) standard 150Ω video loads. The output buffers can drive either an AC or a DC load such that the blanking
level voltage after the backmatch resistor is less than
1V. The Y and C video inputs are summed to produce
the composite video output. The MAX7453 has a maximally
flat frequency response.
The MAX7453 is available in an 8-pin SO package and is
fully specified over the commercial (0°C to +70°C) temperature
range.
Key Features
Applications/Uses
Triple-Channel Filter and Buffer for CVBS and Y/C (S-Video) Video Signals
Filter Response Ideal for NTSC, PAL, and Interlaced SDTV Signals
42dB (typ) Stopband Attenuation at 27MHz
-0.3dB (typ) Passband Response
< 1V Blanking Level Allows DC-Coupled Output
CVOUT Drives Two 150Ω Video Loads
YOUT and COUT Drive One 150Ω Video Load
+5V Single-Supply Voltage
8-Pin SO Package
Every Composite, S-Video Output for NTSC/PAL, SDTV
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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