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TVP9900 ATSC Demodulator and S
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The TVP9900 ATSC Demodulator supports the reception of DTV broadcasts, including
high-definition TV (HDTV), in North America. The device supports all standard ATSC
over-the-air and cable transmissions. The standalone demodulator is compatible with
standard ATSC tuners and a wide range of DTV video processors from TI and other
suppliers. Figure 1 shows the major components and connections of a DTV receiver
using the TVP9900.
TVP9900 performance meets or exceeds the American Television Standards
Committee’s (ATSC’s) A/74 recommendations, helping to simplify receiver design while
ensuring high-quality imaging. Signal equalization covers the echo profile required by
A/74 guidelines, and multipath and burst noise impairment performance demodulates
all Brazil ensembles—among the industry’s most demanding tests of multi-path performance—
for improved signal reception over a greater transmission range. Figure 2
on the following page shows how dramatically the TVP9900’s multi-path performance
(top line) exceeds the A/74 requirements, ensuring high picture quality for the user.
With its high level of system integration, the demodulator saves DTV manufacturers
a significant amount, up to 20 percent, in the bill of materials for the receiver.
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