MT2050 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – CABLE MODEM TUNER AND DIGITAL SET-TOP BOX APPLICATIONS

M I C R O T U NE®
RF SILICON AND SYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MT2050 SINGLE-CHIP
BROADBAND TUNER
PRODUCT BRIEF
The MT2050 is a 5.0V single-chip
broadband tuner with an integrated
IF variable gain amplifier.
MT2050 Single-Chip Broadband Tuner
The MT2050 is an advanced
single-chip broadband tuner that
has been optimized for high
performance cable modems and
digital cable set-top boxes that
require low composite distortion and
noise under digital cable
environments. The MT2050 includes
all active circuitry required to
implement total RF functionality,
making it the world’s first complete
RF/amplifier silicon front end. It is
capable of receiving frequencies in
the 48 MHz to 860 MHz range and
converting a selected channel to a
standard intermediate frequency
(IF). Supported IF frequencies
include NTSC, PAL, and digital
standards including DOCSIS,
EuroDOCSIS, DVB-C, and ITU J83,
A, B, C.
The MT2050’s low close-in phase
noise allows it to be used for both
digital and analog video signals
including video, high speed data,
and voice. Its dual-conversion
architecture, with no requirement for
tracking filters, yields the desirable
characteristics of traditional cable
television tuners: controlled input
impedance across the entire input
band, low in-band emissions, and
outstanding image rejection.
APPLICATIONS
• Cable modems / voice-
enabled cable modems
• Digital set-top boxes (STB)
• Home gateways
FEATURES
• 48 MHz to 860 MHz input
frequency range
• Works seamlessly with all
analog and digital
demodulators
• Low power dual-conversion
architecture
• Minimal external components
• No manually tunable parts
required
• Simple interface to external
filters
• Integrated IF variable gain
amplifier for direct connection
to digital demodulators
• Fully compatible with NTSC,
PAL, SECAM, DAVIC, DVB-C,
DOCSIS 1.0, 1.1 and 2.0,
EuroDOCSIS and other
standards.