Demodulates Terrestrial Digital Video Broadcasting (DVB-T) Orthogonal Frequency Division Multiplex (OFDM) digitized IF signal into an MPEG®
The MC92315 is a DVB-T (Digital Video Broadcast - Terrestrial) compliant
demodulator for both 2K and 8k transmission modes according to the ETSI
specification for digital terrestrial broadcasting. The MC92315 device
is pin compatible with the MC92314 which supports only 2K
transmission mode. 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 or 8K 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 MC92315 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 MC92315 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