MC92305

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Current Information @ www.mot.com/ADC MC92305 Product Preview 16/32/64/128/256 QAM RECEIVER AND REED-SOLOMON DECODER The MC92305 is a high performance digital demodulator/decoder optimized for demodulation and block error correction of QAM signals used in Digital Video Broadcast by Cable (DVB-C) and DAVIC 1.0 compliant applications. Feature Summary Single A/D IF interface Maximum signaling rate of 7Mbaud (42Mbits/sec for 64 QAM and 56Mbits/sec for 256 QAM) DVB compliant QAM Coherent Demodulator Transversal/Decision Feedback adaptive equalizer No external components or control required Micro-reflection cancellation up to 1.4µs Nyquist baseband filtering (α=0.15) 1-bit Σ∆ control outputs for AGC, VCO and optional external NCO Programmable De-Interleaving For MPEG Transport Packets DVB Compliant (204,188,16) Reed Solomon Decoding DVB Compliant PRBS Descrambling 0.5 micron CMOS, 3.3V technology I2C Interface for control/monitoring of system AGCOUT RESETB I&Q[9:0] IQSWAP ADCLKIN SYMFE SDATA IN_FMT SCLK BITCLK ADCLKOUT VCOOUT CTLOUT DMODLOCK MSSLOCK DOUT[7:0] DO_VAL FRAME_SYNCH FRAME_ERR FRAME_START Ordering Information Device MC92305CD Package 80QFP 10 I &Q SYMFE RESETB IN_FMT ADCLKOUT CTLOUT VCOOUT AGCOUT MSSLOCK DMODLOCK ADCLKIN FRAME_SYNCH Symbol To Byte Mapping 16/32/64/128/256 QAM DEMOD. Programmable De-Interleaver Synch Word Synchronization Reed-Solomon Decoder RAM 8 PRBS Descrambler DOUT FRAME_START FRA...