Demodulates Terrestrial Digital Video Broadcasting (DVB-T) Orthogonal Frequency Division Multiplex (OFDM) digitized IF signal into an MPEG®
The MC92314 is a DVB-T (Digital Video Broadcast - Terrestrial) compliant
demodulator for a 2K transmission mode according to the ETSI
specification for digital terrestrial broadcasting. The MC92314 device
is a pin compatible version of the MC92315 which supports the 8K
transmission mode as well. The two-part option allows for flexibility in
cost for system designs
without spending resources on engineering.
Both devices are derived from three 1st generation DTV parts: FFT, OFDM
demodulator and FEC. The OFDM block combines three blocks:
synchronisation, demapping and inner deinterleaver. The FFT block
performs a 2K length fourier transformation. The FEC combines a DVB
Reed-Solomon decoder, a Viterbi decoder and error monitoring while
allowing an output MPEG-2
Transport Stream rate of up to 31.67 Mbits/s according to the ETSI
The MC92314 has been designed with system effectiveness in mind.
Multi-path signals, interferences and many other artifacts need to be
a receiver design for DVB-T. The MC92314 combines a high-performance,
active front end along with a precise FFT which allows the DVB-T system
to operate normally under the worst conditions.
Operational interface is provided via a I2C bus protocol. Operation is
simplified by having the device preconfigured such that only minimal set
up programming is required.
NXP® was the first to market the DVB-T demodulation technology and
has provided its customers with a migration to more cost effective
Today, NXP provides a promising road-map, with state-of-the-art
manufacturing capabilities, making them an attractive partner for the