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| Cascade2TM DTV Demodulator IC DVD Digital Camera Driving the Digital Lifestyle Digital TV Imaging IP Core Product Brief Description Zoran Corporation 1390 Kifer Road Sunnyvale, CA 94086-5305 Te l 408.523.6500 Fax 408.523.6501 www.zoran.com The Cascade2 is a multistandard demodulator and decoder for terrestrial and cable TV reception. It is designed to support 8/16-VSB in compliance with the ATSC Digital Television Standard as well as OpenCable ITU-T J.83B in compliant 256/64 QAM and OOB QPSK modes for Digital Cable Ready downstream reception. The Cascade2 is designed to reduce system costs by integrating the FAT channel demodulation of VSB, J.83 Annex B QAM and Audio decoding (for analog channels) and the FDC QPSK channel demodulation. The small, high-performance Cascade2 is well suited for any system designed to receive off-air and cable digital TV transmissions. This includes stand-alone SDTV or HDTV sets, Set-Top Boxes, PC-TV cards and data reception appliances. The Cascade2 family ICs are produced in several combinations of reception standards: Cascade2 P/N CAS-220 CAS-220/C CAS-220/S CAS-220/CS CAS-220/CO CAS-220/CSO VSB Decscription ATSC QAM Annex B OOB FDC US Audio BTSC Korea Audio A2FM FM Radio Smart Antenna VSB, QAM VSB, BTSC VSB, QAM, BTSC VSB, QAM, OOB VSB, QAM, BTSC,OOB * * * * * * * * * * * * * * * FEC * * * * * * * * * * * * System Block Diagram IF Input Mux SIF Input 10-bit ADC Programmable Digital Filters and other DSP Blocks Parallel MPEG2 TS Out FAT AGC AGC MPEG2 Mux and Serializer Serial MPEG2 Transport Parallel MPEG2 TS In CLK0 Osc Main PLL Sound Decoder DSP General Purpose I/O Pins Internal Clocks FDC LO LO Firmware RAM IIS Output FDC AGC AGC FDC IF In ADC FDC QPSK Demodulator FDC data Out Tuner IIC Switch Host IIC Cascade2 front end system solution without OOB 25MHz Cascade2 front end system solution with OOB FAT - Forward App Transport CVBS Antenna BTSC 4.5 MHz 54-860MHz LNA Spliter Tuner IF 44MHz VSB SAW Tuner I2C Cascade2 IF Tuner 44MHz SAW filter and IF AGC BPF IF AGC PWM LPF NTSC demod 2nd IF Sound (4.5 MHz) ADC Tuner I2C Audio I2S Host I2C ADC Data MPEG 2TS Cable In/Out BPF 70-130 MHz FAT IF Input Cascade2 FDC IF Input Mixer BPF Local Oscillator 25MHz SIF (Option) FM IF (Option) CVBS OOB tuner 11/05 IN CAS-220 Cascade2TM DTV Demodulator IC Driving the Digital Lifestyle Product Brief Key Features Modulation Flexibility - ATSC 8-VSB demodulation - OpenCable, ANSI/SCTE DVS-031, ITU-T J.83 Annex B and DOCSIS compliant 64/256 QAM demodulation - OOB downstream demodulation, complies with SCTE DVS-178 and DVS-167 specifications - Audio stereo decoding: US BTSC audio mono, stereo and SAP decoding (DBX), Korea A2 FM mono, stereo and bilingual, with IIS output - Autonomous operation - Internal DSP firmware execution eliminates the need for supervision and operation by the system host Excellent VSB Performance - Superior 8-VSB multi-path performance with equalizer coverage of -34us to +78us. - Superior VSB indoor reception using enhanced equalization and synchronization algorithms, based on training signal and data-aided equalization, enables Brazil and other 0dB ghosts reception - Adaptive control loops according to channel conditions for fast channel acquisition and optimal tracking - Excellent doppler ghosts rejection - Fast channel auto search by carrier lock of +/-400KHz and NTSC channel detection Excellent QAM Performance - ANSI/SCTE DVS-031, ITU-T J.83 Annex B 64/256QAM, 5.059641/5.360537MHz symbol rate. - Integrated 32Kbytes deinterleaver RAM for DI modes up to I=128 J=4. - 84 taps equalization range: 36 FFE and 48 DFE for superior cable micro-reflection rejection - Superior phase noise rejection - Superior burst noise and combined distortion rejection - Superior AM noise rejection - Fast channel auto search based on auto 64/256QAM detection and wide carrier acquisition range of +/-500KHz FDC Demodulator (OOB) - OpenCable SCTE DVS-178 & 167 QPSK demodulation - 8 taps adaptive equalizer - On-chip frequency synthesizer provides LO for FDC down-conversion - Direct Cable Card interface compliant with SCTE 28 2001 (DVS-295) Sound stereo decoder - US BTSC mono, stereo and SAP (DBX) decoding - Korea A2 FM mono, stereo and bilingual decoding - FM radio stereo decoding - IIS server/client with output clock of 48KHz, 44.1KHz, and 32KHz Advanced System Functions - Accepts 44MHz or low-IF from the tuner eliminating external base-band demodulation - Separate RF and IF AGC PWM outputs - Parallel and serial MPEG2 transport outputs - All digital recovery loops - Firmware loading IIC serial bus from host upon initialization - Integrated IIC switch for isolation of the tuner IIC port during normal reception modes - Via IIC, the Cascade2 reports FEC statistics, receiver status, and channel data such as S/N ratio, equalizer taps, carrier offset, and more - EIA/CEA-909 Mode A Smart Antenna Interface - Internal mux for serial output of decrypted TS from POD Standard 14x14 mm 100pin LQFP package For more information, contact Zoran's Sunnyvale office or the office nearest you: Shanghai, China Zoran China Office Tel: 86-21-6469-9799 Fax: 86-21-6427-0545 Shenzhen, China Zoran China Office Tel: 86-755-8281-5777 Fax: 86-755-8322-0889 Hong Kong Zoran Asia Pacific Ltd. Tel: +852-2620-5838 Fax: +852-2620-5238 Israel Zoran Microelectronics Ltd. Te l : +972-4-8545-777 Fax: +972-4-8551-550 Japan Zoran Japan Office Te l : +81-3-5475-1051 Fax: +81-3-5475-1053 Korea Zoran Korea Office Tel: +82-2-761-7471 Fax: +82-2-761-7472 Taiwan Zoran Taiwan Office Te l : +886-2-2659-9797 Fax: +886-2-2659-9595 (c) Copyright 2005 Zoran Corporation. All rights reserved. Zoran, the Zoran logo, and Cascade are trademarks of Zoran Corporation. All other brand product names and company names are trademarks of their respective owners. The information in this document is believed to be reliable. However, Zoran Corporation makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon it. Zoran Corporation does not guarantee that the use of any information contained herein will not infringe upon patent, trademark, copyright, or rights of third parties. Zoran Corporation reserves the right to make changes in the product and/or specifications, or both, presented in this publication at any time without notice. 11/05 IN CAS-220 |
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