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DTV demodulator supports single/multi-carrier modes

Posted: 07 Mar 2008 ?? ?Print Version ?Bookmark and Share

Keywords:DTV? demodulator? China DTV standard?

Montage Technology has introduced the M88DD2000 single-chip digital terrestrial TV demodulator, which is compliant with the China GB 20600-2006 standard and supports single- and multi-carrier modes.

The M88DD2000 operates at 3.3V for single power supply or 3.3V for I/O and 1.8V for digital core, and has an internal voltage regulator that reduces BOM costs. The device also has standby mode available to ensure low power consumption for fixed, mobile and portable terrestrial DTV receiver systems.

The chip is compatible with single frequency network and supports 6-, 7- and 8MHz channel bandwidths. It offers complete FEC and delivers parallel or serial MPEG TS output. The device also includes a high-end ADC that is capable of delivering superior performance in all operation modes.

The M88DD2000 supports 4QAM-NR as well as 4-, 16, 32- and 64QAM. It also features timing and carrier recovery and correction; symbol timing adjustment; and channel estimation and equalization. In addition, the demodulator has on-chip PLL system clock derived from a 20.48MHz external crystal or clock without any external VCXO required.

The implementation of M88DD2000 is all done in a set of dedicated signal circuits to provide clear reception of broadcast signals under various extreme conditions. The interface design also allows easy and simple connections to different application systems with complete status and performance monitoring.

The M88DD2000 is packed in 14mm x 14mm 100-pin LQFP.

Montage Technology is one of the exhibitors at the 13th IIC-China 2008.

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