• Downstream QAM receiver for internationalapplications• Integrated QAMLink receiver with Forward ErrorCorrection (FEC)• 1-7 MBaud variable symbol rate receiver• Supports variable channelization• Supports 4, 16, 32, 64, 128 and 256-QAM• Digital demodulator, Nyquist filters, tracking loops,and 20-tap adaptive decision feedback equalizer• Digital derotator for wideband carrier phase tracking• DVB/DAVIC-compliant FEC decoder• Reed-Solomon (N,K) = 204,188: t=8• Convolutional detinterleaver, I=1-12 with internalRAM, I=204 with external RAM• I2C or SPI-compatible microcontroller interface• Integrated 10-bit analog-to-digital converter• On-chip generation of all clock and control signals• JTAG test interface• 100-pin PQFP PackageBCM3118BFEA TURESSUMMAR YOFBENEFITS• Fully integrated solution enables less-complex,low-cost cable modems and cable-TV set-top boxes• Significantly increases channel capacity• Variable data rates enable systems to adapt tochannels encoded at different data rates• Integrated A/D converter reduces systemmanufacturing costs and complexity• A universal chip solution that supports DVB, DAVIC,ITU-T J.83/Annex A and Annex C, IEEE 802.14-basedsystems• Digital adaptive equalizers ensure robust performancein the presence of multipath reflectionsBCM3118BQAMLINK ®DVB/DAVICRECEIVERCPUBCM3118BVideo 2Out-of-BandDOCSIS/EuroDOCSIS 1.1/1.0Video 1Video 2PCIVideo 1Audio OutVideo OutBCM3250AdvancedSingle-ChipSet-Top BoxFront EndBCM7030High DefinitionVideo/GraphicsSubsystemInteractive Set-Top Box with DOCSIS and Watch and Record Dual Video Channels®PRODUCTPRODUCTBriefBriefBCM3118B
