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BCM3517 Datasheet(PDF) 2 Page - Broadcom Corporation. |
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BCM3517 Datasheet(HTML) 2 Page - Broadcom Corporation. |
2 / 2 page O V ERVI EW ® Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 © 2006 by BROADCOM CORPORATION. All rights reserved. 3517-PB03-R 10/23/06 Broadcom®, the pulse logo, QAMLink®, Connecting everything®, and the Connecting everything logo are among the trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the property of their respective owners. BCM3517 Block Diagram The BCM3517 is an ATSC/VSB Digital Cable Ready DTV receiver that contains a digital receiver that is compatible with both North American digital cable television and digital terrestrial broadcast television standards. This receiver is capable of receiving all standard-definition and high-definition digital formats (SDTV/HDTV). An out-of-band QPSK receiver is also contained to meet the needs of the CableCARD specification. The BCM3517’s digital receiver accepts an analog signal centered at the standard television IF frequencies, and amplifies and digitizes this signal with an integrated programmable gain amplifier and 12-bit A/D converter. The output of the A/D is sent to the receiver and demodulator. The digital receiver consists of a QAM demodulator and a VSB demodulator. Each demodulator contains adaptive filters that remove multipath propagation effects, NTSC co-channel interference, and RFI interference. The output of the VSB demodulator goes to an ATSC A/53 coding forward error corrector (FEC), with integrated trellis and Reed- Solomon decoder. The output of the QAM demodulator goes to an ITU- T J.83 Annex A/B/C coding FEC. The output of either QAM or VSB FEC is delivered in either parallel or serial MPEG-2 transport format. All gain, clock, and carrier, acquisition, and tracking loops are integrated on-chip as are the necessary phase-locked loops, referenced to a single external crystal. Chip configuration, channel acquisition, and performance monitoring functions are conducted by the on-chip acquisition processor using Broadcom-provided software. BSC/SPI Host Interface Antenna Control JTAG Controller MPEG Transport OOB Transport for CableCard/ POD Tuner/Peripheral Control 54-MHz Overtone Crystal 3rd GPIO OOB Tuner Inband Tuner GPO Inband AGT Interrupt Inband AGI Inband AFT OOB AGC OOB VCO Internal Bus To All Blocks BSC/SPI Slave Interface HAB Master PLL Acquisition Processor Inband AFE PGA 12-bit A/D AGC Control ITU-T J.83 Annex A/B/C FEC ATSC FEC EIA/CEA-909 Interface BSC Master Interface JTAG Interface GPIO/GPO Interface OOB AFE PGA 6-bit A/D AGC Control VCO OOB QPSK Receiver DVS-167 FEC DVS-167 FEC Output Interface ATSC 8/16 VSB Advanced Receiver 16-1024 QAM Advanced Receiver OOB Output Interface |
Similar Part No. - BCM3517_06 |
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Similar Description - BCM3517_06 |
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