MT8872C Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – COFDM DEMODULATOR/FEC

M I C R O T U N E™
MT8872C AND MT8872P
COFDM DEMODULATOR/FEC
CONSUMER AND PROFESSIONAL
DVB-T TV RECEIVER AND
SET-TOP BOX APPLICATIONS
APPLICATIONS
• DVB-T TV receivers
• DVB-T set-top boxes
FEATURES
• Integrated 10-bit ADC
• 1st IF input supported
• No VCXO required because of
digital resampling techniques
• Quick synchronization after
channel switch (<70 ms)
• 6 MHz, 7 MHz, and 8 MHz
channel-compliant with only one
X-tal
• 8K and 2K modes
• Digital AFC
• Hierarchical modulation
supported
• BER, S/N, packet error,
constellation diagram readout via
I²C
• Very small package (80 pins
TQFP)
• Tristatable serial or parallel
MPEG output
• Serial MPEG2transport stream
output
• Low power consumption
(750 mW)
• Excellent performance (in
presence of echoes, co-channel,
AWGN
• Real-time channel monitoring
options for professional
applications (SP8871P only)
− FFT window
− Constellation diagram
− Pilot spectrum
MT8872C
COFDM Demodulator/FEC
MT8872P
The MT8872C is an ETS 300 477-
compliant integrated
demodulator and forward error
corrector (FEC) for DVB
terrestrial digital television
receivers and set-top boxes. It
accepts as data baseband or 1st
IF COFDM. The 1st IF sampling
option further decreases system
cost. The 10-bit ADC samples
the incoming signal. The internal
microprocessor locks to the
OFDM signal fully automatically.
The MT8872 can cope with very
severe channel distortions due to
its state-of-the-art channel
estimation unit. The error
correction unit corrects
remaining errors and outputs a
DVB common interface-
compliant MPEG-2 transport
stream.
MONITOR FUNCTIONS
Optionally, data transfer to and
from the internal blocks of the
MT8872P can be provided
directly from the pins (e.g., the
filtered time-domain signal, the
FFT output, interpolated pilots
and the equalized signal after the
channel estimation unit). This
enables real-time monitoring of
channel characteristics for use in
professional applications.
Product Brief