Theater™ 313

Theater™ 313R is an advanced QAM and VSB demodulator chip designed to operate in the Digital Cable Ready and ATSC terrestrial broadcast environments. Theater 313® also incorporates a QPSK forward data channel (FDC) receiver and a BTSC/Dual-FM demodulator and decoder enabling a complete digital TV solution with a minimum number of components.

The Theater 313R is configurable to operate in either the ITU-J.83B/SCTE DVS-031 compliant 64 QAM or 256 QAM modes used by digital cable systems, the NTSC analog system, or the ATSC compliant 8-VSB mode used in digital terrestrial broadcasting. For digitally modulated input signals (QAM or 8-VSB) ,Theater 313R outputs a parallel or serial MPEG compliant transport stream. For analog NTSC input signals, Theater 313R outputs the audio as decoded digital left and right channels via an I2S port. For the out-of-band FDC, Theater 313R performs the QPSK demodulation and provides a direct digital interface (clock and data) to CableCARDs™.

Features and Benefits

• Highly integrated with VSB, QAM, and FDC(T313) demodulators and BTSC decoder on one chip
• Integrated digital SAW filter
• Support for interfacing to many leading tuner solutions, modules and IC tuners
• EIA/CEA-909 Interface (Smart Antenna) hardware and algorithm support
• IF and RF AGC control hardware and algorithms
• Few external components required, enables simplified design and reduced BOM cost
• Allows use of less expensive single IF SAW tuner
• Wide range of supported tuner choices provides design flexibility
• Enables development of TVs/STBs with Smart Antenna for better reception
• Simplifies front-end design with few external components