STV0297J ® Universal digital cable demodulator DATA BRIEF Description The STV0297J is a highly integrated device, compliant with DVB-C/ITUJ83-A/B/C. It provides a small footprint, low-power solution enabling it to be easily integrated into broadcast and interactive set-top boxes and network inteface modules. Furthermore, the STV0297J is the first QAM demodulator with the integrated support for transport stream multiplex frame required for Japanese cable set-top boxes. Application: Advanced solution for very low-cost broadcast and interactive cable set-top boxes DEMODULATOR Quadrature demodulation Vin + Vin - AGC1 AGC2 Nyquist filtering AGC Derotator Signal quality estimator ADC WBAGC & delayed AGC Symbol timing recovery Carrier recovery Lock status & IRQ generator SCL SDA FEC Channel equaliser I²C interface FEC B FEC A/C Trellis decoder De-randomiser De-interleaver RS FEC decoder MPEG sync Shared RAM to all registers TSMF function I²C repeater CLK Clock generation SCLT SDAT March 2004 XTAL Bit error rate tester Output formatter Output stream 1/2 STV0297J Features ■ Integrated high performance ADC ■ Support for 4-, 16-, 32-, 64-, 128-, 256-point constellation variable symbol ■ Rate from 0.87 MBaud to 11.7 MBaud ■ Robust integrated adaptative equaliser ■ I²C serial bus and I²C repeater ■ DVB common parallel interface-compliant serial and parallel data output ■ Lock time <100ms ■ Low power consumption <0.5W typ. ■ TQFP 64 10x10 package Ordering information Device number Description STV0297J QAM FEC A/B/C STV0297JT QAM FEC A/B/C with tape and reel STV0297J-TMM Development platform Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without the express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners © 2004 STMicroelectronics - All Rights Reserved STMicroelectronics Group of Companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States www.st.com 2/2