Microtune MT3141 Tuner for Worldwide Digital TV

Microtune launched the MT3141 world-standard radio frequency (RF)-to-baseband IC. The Microtune MT3141 is based on a new, highly integrated silicon architecture. The MT3141 single chip enables TV manufacturers to use a smaller, higher-performance, and more cost-effective receiver for next-generation global digital television designs. The MT3141 tuner is available now to early access customers in a 6.0 mm x 6.0 mm 40-pin QFN package. It is priced at $2.00 in high volume. Microtune also offers a MicroCeiver MT3141 evaluation board and reference design.

Microtune MT3141 Tuner Highlights

  • A miniaturized RF-to-baseband single chip that combines the functions of an RF tuner, analog TV demodulator, intermediate frequency (IF) filters, and amplifiers in a tiny 6 mm x 6 mm IC
  • The only receiver engineered to exceed the RF performance requirements of worldwide analog/digital broadcast and cable standards, including those for China’s new CTTB (also known as DTMB or DMB-T) and Europe’s next-generation DVB-T2 requirements
  • Tiny enough for the lightest ‘picture on a wall’ TVs, but packs the performance to put a superb TV picture on the biggest wide screen
  • Typical noise figure: 3 dB
  • Video signal to noise ratio: greater than 60 dB
  • Typical sensitivity ATSC: -88 dBm
  • DVB-T desired to undesired signal: exceeds NorDig 2.1 specifications by greater than 10 dB

Based on new MicroCeiver technology, the MT3141 is a complete RF analog and digital signal processing system in a single chip. It fuses RF tuner, analog video demodulation, filter and amplifier capabilities together, erasing the distinctions across these functional boundaries. The M3141 employs internal techniques and proprietary algorithms to continuously update information about signal conditions across the signal path, optimizing performance across the entire receiver chain.

A single chip, the MT3141 receives all frequencies in the 44 MHz to 1.0 GHz range. It converts a selected channel either to a low-IF or to a standard IF between 4 MHz and 57 MHz, and it outputs filtered audio (SIF) and baseband video (CVBS) signals. It is characterized by a very high level of integration with minimal external bill of materials that require no active components. The MT3141 virtually eliminates an external bill of materials.

The MT3141 complies with worldwide broadcast standards and is engineered to exceed all performance requirements published for them, including those for legacy analog TV reception (NTSC, PAL and SECAM analog television signals for off-air and cable). The transition to digital broadcast around the world is expected to continue through at least 2018.

More info: Microtune