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