Overview: .. RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND MUNICATIONS AND AUTOMOTIVE ELECTRONICS MT2068 SINGLE-CHIP BROADBAND TUNER
PRODUCT BRIEF The MT2068 is a low-power 3.3 V single-chip broadband tuner with an integrated IF variable-gain amplifier. MT2068 Single-Chip Broadband Tuner The MicroTuner™ MT2068 is an advanced, low-power single-chip broadband tuner that has been optimized for high-performance cable modems, DVB-C & DSG STB’s and embedded DOCSIS adapters (eDOCSIS) that require low posite distortion and noise under digital cable environments. The MT2068 is capable of receiving frequencies in the 48 MHz to 1.0 GHz range and of converting a selected channel to a standard intermediate frequency (IF) between 30 MHz and 60 MHz. The MT2068’s low phase noise makes it ideal for use in digital applications such as video, voice and high-speed data. Its dualconversion 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 MT2068 provides excellent in-band flatness as well as very repeatable gain characteristics across the plete reception band. With minor bill of material (BOM) changes, the MT2068 is capable of supporting multiple output standards. The MT2068’s low power consumption significantly conserves current and can be effectively used in battery backed-up EMTA’s, multi-tuner DVB-C (MPEG) and DOCSIS (IP Video) STB applications.
