VES9600

PRELIMINARY VES9600 SINGLE CHIP DVB-T CHANNEL RECEIVER FEATURES 2K and 8K COFDM demodulator ( Fully DVB-T compliant : ETS 300-744). All modes supported including hierarchical modes. On chip 9-bit ADC. Digital down conversion. Fully automatic transmission parameters detection. Crystal or VCXO clock generation. Frequency offset estimator to speed up the scan. RF Tuner input power measurement On chip FEC decoder, full DVB-T compliant. Parallel or serial transport stream interface. DSP based synchronization. BER measurement SNR estimation Channel frequency response output. Channel impulse response output. Controllable dedicated I2C tuner bus. 2 low frequency spare DAC. (∆Σ) Spare I/O. I2C bus interface, for easy control. CMOS 0.35µm technology. DESCRIPTION The VES9600 is a single chip channel receiver for 2K and 8K COFDM modulated signals based on the ETSI specification (ETSI 300 744). The device interfaces directly to an IF signal, which is sampled by a 9-bit AD converter. The VES9600 performs all the COFDM demodulation tasks from IF signal to the MPEG2 transport stream. An internal DSP core manages the synchronization and the control of the demodulation process. After base band conversion and FFT, the channel frequency response is estimated based on the scattered pilots, and filtered in both time and frequency domains. This estimation is used as a correction on the signal, carrier by carrier. A common phase error and estimator is used ...