BCM4201 universal satellite receiver the broadcom BCM4201 is a universal qpsk receiver for directv , dvb and digicipher ii digital satellite reception integrated satellite receiver 2-85 mbps variable rate bpsk/oqpsk/qpsk receiver dual integrated 8-bit a/d converters dual square-root nyquist matched filters ( =0.2-0.35) all digital clock and carrier recovery integrated plls dvb/directv/digicipher ii-compliant fec decoder 64-state viterbi decoder supports rates = 5/11, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 6/7, 7/8 programmable convolutional deinterleaver, i=12 or 13 with internal ram reed-solomon decoder: (n,k) = (204,188) or (146,130): t=8 seamless interface to bcm3440 cmos satellite tuner or direct if input i 2 c and spi compatible microcontroller interface ieee 1149.1 (jtag) test interface 80-pin pqfp pin package 3.3 volt operation satellite ird block diagram BCM4201 features summary of benefits a universal digital transmission solution for dvb, dss and digicipher ii systems an integrated solution enabling low complexity/low cost digital satellite irds variable data rates support all satellite systems worldwide integrated 8-bit a/d converters and pll reduce system manufacturing costs receives up to 85 mbps for high-speed applications operates down to 1 mbaud with excellent adjacent channel rejection characteristics due to 8-bit a/ds for low-speed applications such as scpc specialized circuitry provided for cycle slip minimization on-chip ber tester to simplify system optimization bcm7020 hdtv mpeg-2 transport demux, audio/ video decoder and display engine bcm3440 satellitetuner memory conditional access hd video audio l-band host cpu BCM4201 dvb-s satellite receiver product brief BCM4201
the BCM4201 universal satellite receiver is an integrated digital transmission solution for satellite integrated receiver decoders (irds). integrated features in the BCM4201 include a 2-85 mbps variable rate bpsk/qpsk/oqpsk receiver, dual 8-bit a/d converters, a phase/frequency recovery block, variable rate digital filters, square-root nyquist matched filters, acquisition and tracking loops, and a dvb/directv /digicipher tm ii compliant concatenated viterbi/reed-solomon fec decoder with deinterleaver. the receiver accepts an analog baseband or if modulated (up to 480 mhz) signal, and transmits a demodulated error corrected output data stream. the BCM4201 supports the dvb digital transmission standard for satellite broadcasting, that is in worldwide use today, the directv digital transmission standard and digicipher ii itu-r 217/11 digital transmission standard. analog waveforms received by the BCM4201 are sampled by the integrated a/d converters, digitally mixed to baseband, resampled, and filtered by dual square-root nyquist filters. optimized soft decisions are delivered to a programmable rate 64-state viterbi decoder, frame synchronization block, deinterleaver, t=8 reed-solomon fec, and derandomizer. the final error-corrected output is delivered in mpeg-2 or directv transport stream format. the BCM4201 is a very flexible, cost-effective solution. it is compatable with dvb, directv and digicipher ii itu-r 217/11 standards, enabling manufacturers to design the BCM4201 into a single-standard ird or a multi-standard ird. the receiver supports variable bit rates up to 85 mbps, which allows it to adapt to various satellite transponders in europe, north america, and asia. the BCM4201 is capable of supporting low rate applications, down to 1 mbaud, for applications such as scpc. the BCM4201 is optimized for high-volume manufacturing. this level of integration in the BCM4201 significantly reduces the cost and complexity of manufacturing irds. the BCM4201 contains an extremely accurate on-chip ber tester to simplify laboratory set-up and system optimization. specialized circuitry has been implemented to virtually eliminate cycle slips. BCM4201 overview phase/ frequency recovery jtag[3:0] ra_i +/ - agc_ctrl s_data s_valid s_clk s_sync micro[3:0] p_data[7:0] lnb_ctrl variable rate demod/ equalizer 8 8 viterbi decoder k=7 synch & deinter- leaver i=12,13 rs decoder t=8 & descram deinterleaver ram m-bus/spi interface jtag interface acquisition/tracking loops and clock generation a/d down conversion pre-processing a/d nyquist = .20 - .35 nyquist = .20 - .35 phone: 949-450-8700 fax: 949-450-8710 email: info@broadcom.com web: www.broadcom.com broadcom , the pulse logo and connecting everything tm are trademarks of broadcom corporation and/or its subsidiaries in the united states and certain other countries. digicipher tm is a trademark of general instrument (now motorola). directv is a registered trademark of directv, inc., a unit of hughes electronics corporation. all other trademarks are the property of their respective owners. broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2002 by broadcom corporation. all rights reserved. 4201.pb02-r-4.12.02
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