DVB-S2 Devices

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Revision as of 10:41, 17 October 2007 by Manu (Talk | contribs)

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Note: DVB-S2 demodulator chips currently known are as listed

Features

   • 8PSK/H-8PSK/QPSK/BPSK
   • DVB-S/DSS backward compatible
   • Nonbackward-compatible mode
   • Symbol Rates
       • QPSK/LDPC/BCH: 20-30 Msps
       • 8PSK/LDPC/BCH: 10-30 Msps
   • Code Rates
       • QPSK: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
       • 8PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10

Features

   • Symbol Rates from 100 KSps to 50 MSps
   • QPSK, 8PSK and 16APSK Demodulation
   • LDPC/BCH Decoding with Demodulator Bypass Mode
   • Constant (CCM), Variable (VCM) and Adaptive (ACM) Coding and Modulation

Features

   • DVB-Q2 demodulator and decoder
   • QPSK, 8PSK, 4 + 12 APSK
   • Hierarchical 8PSK enhanced processor
   • LDPC and BCH decoding
   • Supports all DVB-S2 bit rates
   • Legacy DVB-S
   • DVB-S2 framing
   • Legacy support for DVB-S and DIRECTV® QPSK modes
   • Digital carrier and timing recovery loops
   • DiSEqC™ 2.0 22 kHz to 100 kHz interface

Features

   (Each demodultor can handle):
   • DirecTV and DVBS QPSK
   • DVBS2 QPSK, 8PSK and 16APSK
   • Digital Nyquist root filter
   • With 0.20, 0.25, 0.35 excess bandwidth factors.
   • DVBS or DIRECTVTM
   • DVBS2 broadcasting (CCM)
   • DVBS2 adaptive (ACM)
   • Dual decoding
   • Up to 180 Mega DVBS2 channel bits per second (Mcbps) at input to FEC
   • Up to 130 Mcbps DVBS or DirecTV legacy per FEC
   • Legacy DVB-S
   • DVB-S2
   • Dual data to MPEG decoder
   • Single ACM data to microprocessor
   • DVB-S2 framing
   • DiSEqC™ 2.0 22 kHz to 100 kHz interface