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.

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.

APPLICATIONS

• Cable modems / voice enabled cable modems

• Digital set-top boxes (STB)

• Home gateways