BCM4500 PRODUCT Brief ® A D VA N C E D M O D U L AT I O N S AT E L L I T E R E C E I V E R B C M 4 5 0 0 S U M M A R Y F E AT U R E S • All-digital satellite receiver advanced modulation satellite systems and legacy QPSK systems in a single package. • High-performance turbo code FEC enables 50% throughput increase over existing satellite channels within current link budgets within a single transponder. • Advanced modulation turbo FEC decoder • High performance decoder approaches constrained capacity theoretical limits • Supports QPSK rates 1/4, 1/2 and 3/4 • 8PSK flexible code rate support including 2/3, 3/4, 5/6 and 8/9 • Supports 16QAM rate 3/4 • No external RAM support required • Reed-Solomon decoder; t=10 with DVB/DIRECTV /Digicipher II FEC • Complies decoder or DIRECTV output interface with output clock • MPEG-2 PLL • On-chip microcontroller for acquisition and tracking • On-chip BERT for BER testing • Integrated DiSEqC (v2.0) transmitter and receiver • 128-pin PQFP • 3.3V I/O and analog operation • 1.8V digital operation ® TM TM B E N E F I T S • Highly integrated solution provides universal frontend for • 256-kilobaud to 30-megabaud variable rate receiver • Supports BPSK, QPSK, 8PSK, & 16QAM modulation • Dual integrated 7-bit A/D converters • Digital square-root Nyquist filters (α=0.2, 0.35) • All-digital clock and carrier recovery • 12-tap adaptive equalizer ® O F design architecture requires no external RAM • Advanced for turbo FEC. modulation receiver maintains robust • Advanced performance during low SNR operation. variable rate operation from 256-kilobaud to • Full 30-megabaud provides multiple operating points for optimal system deployment. microcontroller controls receiver operations • Integrated including configuration, acquisition and performance monitoring. interface operates via high-level application program • Host interface (API) to reduce host software development time and to simplify system integration. or DIRECTV output interface with PLL• MPEG-2 generated data clock provides glueless integration with ® BCM7020 HD graphics and video subsystem. Highly integrated DiSEqC • analog components. TM interface includes integrated Advanced Modulation Satellite Receiver Set-top Box Memory BCM4500 Advanced Modulation Satellite Receiver L-band BCM3440 SatelliteTuner Conditional Access BCM7020 HD Video HDTV MPEG-2 Transport DEMUX, Audio/ Video Decoder and Display Engine Audio Host CPU