RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MT2064 SINGLE-CHIP
BROADBAND TUNER
PRODUCT BRIEF
The MT2064 is a low-power 3.3V single-
chip broadband tuner with an integrated
IF variable-gain amplifier.
MT2064 Single-Chip Broadband Tuner
The MicroTuner™ MT2064 is an
advanced, low-power single-chip
broadband tuner that has been
optimized for high-performance
cable modems and embedded
multimedia terminal adapter (E-MTA)
that require low composite distortion
and low noise under digital cable
environments.
The MT2064 is capable of
receiving frequencies in the 48 MHz
to 1 GHz range and of converting a
selected channel to a standard
intermediate frequency (IF) between
30 MHz and 60 MHz.
The MT2064’s low phase noise
makes it ideal for use in digital
applications such as video, voice
and high-speed data. 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.
In addition, the MT2064 provides
excellent in-band flatness as well as
very repeatable gain characteristics
across the complete reception band.
The MT2064’s low-power
consumption significantly conserves
current and can be effectively used
to extend the operation of battery-
powered E-MTA.
The MT2064 can be used in
conjunction with Microtune’s
upstream amplifiers to create a
complete RF front end for bi-
directional cable modem
APPLICATIONS
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VoIP Telephony Modems
Cable Modems
PacketCable™ E-MTA
FEATURES
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48 MHz to 1000 MHz input
frequency range
3.3V power supply
Single-ended RF input reduces
BOM by eliminating input balun
Works seamlessly with all digital
demodulators
Low power dual-conversion
architecture
Minimal external components
No tunable parts required
Integrated IF variable gain
amplifier for direct connection to
digital demodulators
Low phase noise for excellent
performance in QAM 64 and QAM
256 systems
Software and hardware shutdown
modes
Frequency synthesizers fully
programmable via serial-control
interface
Fully integrated VCO circuitry
simplifies PCB layout
General-purpose input/ output
(GPIO) controllable via serial-
control interface
Intermediate frequency (IF) output
fully compatible with DOCSIS
2.0, EuroDOCSIS™ 2.0
Integrated temperature sensor
Operates with a 16 MHz crystal
Small 6 mm x 6 mm 40-pin Quad
Flat No-Lead (QFN) package
®
PRELIMINARY
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MICROTUNE [ MICROTUNE,INC ]
