• Digital terrestrial set-top boxes
• Integrated digital televisions
• Personal video recorders
• PC-TV receivers
• Portable applications
The CE6353 is a superior fourth generation fully compliant ETSI ETS300 744 COFDM demodulator that exceeds,
with margin, the performance requirements of all known DVB-T digital terrestrial television standards, including
www.DataSheeUt4nUi.fcieomd Nordig and DTG.
A high performance 10 bit on-chip ADC is used to sample the 44 or 36 MHz IF analog signal. Advanced digital
filtering of the upper and lower channel enables a single 8 MHz channel SAW filter to be used for 6, 7 and 8 MHz
OFDM signal reception. All sampling and other internal clocks are derived from a single 20.48 MHz crystal or a 4
MHz clock input, the tolerance of which may be relaxed as much as 200 ppm.
The CE6353 has a wide frequency capture range able to automatically compensate for the combined offset
introduced by the tuner xtal and broadcaster triple frequency offsets.
An on-chip state machine controls all acquisition and tracking operations of the CE6353 as well as controlling the
tuner via a 2-wire bus. Any frequency range can be automatically scanned for digital TV channels. This mechanism
ensures minimal interaction, maximum flexibility and fast acquisition - very low software overhead.
Also included in the design is a 7-bit ADC to detect the RF signal strength and thereby efficiently control the tuner
Users have access to all the relevant signal quality information, including input signal power level, signal-to-noise
ratio, pre-Viterbi BER, post-Viterbi BER, and the uncorrectable block counts. The error rate monitoring periods are
programmable over a wide range.
The device is packaged in a 10 x 10 mm 64-pin LQFP and is very low power.