set-top box solutions satellite distinguishing features conexants portfolio includes a comprehensive suite of semiconductor solutions for broadband communications, enterprise networks, and the digital home. the CX24116 is based on an open dvb-s2 standard and offers an alternate path for service providers to use advanced modulation (8psk) with ldpc/bch fec. this will realize increased satellite throughput that can be used to offer additional programming and services. the CX24116 can demodulate and decode signals transmitted in accordance with the new dvb-s2, dvb-s and directv specifications. it has an automatic acquisition algorithm that searches and acquires the carrier within a 10 mhz range during initial acquisition and performs a smart search to reacquire under fade condition. the CX24116 has an on-chip microcontroller for fast-signal acquisition, es/no estimation, and system monitoring. in addition, the on-chip microcontroller saves software integration time by minimizing the external driver code. the CX24116 has integrated signal-to-noise ratio (snr) and bit error rate (ber) monitors for channel-performance measurements that simplify production testing. the CX24116 can be used in conjunction with the conexants cx24118 tuner rf ic to create a complete satellite amc front-end solution. conexants advanced modulation front-end solution enables satellite stb providers to deliver cost-effective, digital stbs that support a wide range of consumer video services, such as transmitting additional local channels and high-definition television (hdtv) channels. part number cx2411 6 description dvb-s2 demodulator and fec decoder dvb-s2 demodulator and forward error correction decoder CX24116 ? 8psk /h-8psk/qpsk/bpsk ? dvb-s/ dss backward compatible ? nonbackward-compatible mode - sym b ol rates ? qpsk/ldpc/bch: 20-30 msps ? 8ps k/ld pc/bch: 10-30 msps - code r ates ? qpsk: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 ? 8ps k: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 ? automatic acquisition ? 10 mhz acquisition range ? internal microcontroller ? serial/parallel output data intermediate frequency (if) ? integrated snr and ber monitor ? diseqc ? 2.x compliant ? power-down mod e ? 1.2-v core voltage ? 3.3-v i/o voltage ? 100-pin exposed thin quad flat pack (etqfp)
? 2004, conexant systems, inc. all rights reserved. conexant and the conexant logo are registered trademarks of conexant systems, inc. all other trademarks are owned by their respective owners. although conexant strives for accuracy in all its publications, this material may contain errors or omissions and is subject to change without notice. this material is provided as is and without any express or implied warranties, including merchantability, fitness for a particular purpose and non-infringement. conexant shall not be liable for any special, indirect, incidental or consequential damages as a result of its use. set-top box solutions satellite 04-1284 the companys broad portfolio of semiconductor products also includes client-side digital subscriber line (dsl) and cable modem solutions, home network processors, broadcast video encoders and decoders, digital stb components and systems solutions, and dial-up modems. in addition to its ieee 802.11a/b/g- compliant wireless local area network (wlan) chipsets, software, www.conexant.com general information: u.s. and canada: (800) 854-8099 international: (949) 483-6996 headquarters C newport beach 4000 macarthur blvd, p.o. box c newport beach, ca 92660-3095 order# 102473b CX24116 dvb-s2 demodulator and forward error correction decoder i q mode selection mpeg/data stream output processing mpeg t ranspor t sream or data stream ldpc & bch fec decoder microprocessor t une r interface bpsk qpsk 8psk h-8psk demodulator dual a/d qpsk/bpsk qpsk/8psk/ h-8psk dvb/dss fec v iterbi/r s decoder and reference designs, conexant offers a suite of networking components that includes solutions for applications based on homeplug ? and homepna sm . additional products include a complete line of asymmetric and symmetric dsl central office solutions, which are used by service providers worldwide to deliver broadband data, voice, and video over copper telephone lines .
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