DVB-S2 devices: Difference between revisions
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• Digital Nyquist root filter |
• Digital Nyquist root filter |
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• With 0.20, 0.25, 0.35 excess bandwidth factors. |
• With 0.20, 0.25, 0.35 excess bandwidth factors. |
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• DVB-S or DirecTVTM |
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• DVB-S2 broadcasting (CCM) |
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• DVB-S2 adaptive (ACM) |
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• Dual decoding |
• Dual decoding |
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• Up to 180 Mega |
• Up to 180 Mega DVB-S2 channel bits per second (Mcbps) at input to FEC |
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• Up to 130 Mcbps |
• Up to 130 Mcbps DVB-S or DirecTV legacy per FEC |
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• Legacy DVB-S |
• Legacy DVB-S |
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• DVB-S2 |
• DVB-S2 |
Revision as of 09:54, 17 October 2007
Note: DVB-S2 demodulator chips currently known are as listed
CX24116 From Conexant
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
ECC3100 (SkyPHY) From Eccincorp
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
STB0899 From ST Microelectronics
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 • up to 90 Mbps channel bit rate • 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
STV0900/3 From ST Microelectronics
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. • DVB-S or DirecTVTM • DVB-S2 broadcasting (CCM) • DVB-S2 adaptive (ACM) • Dual decoding • Up to 180 Mega DVB-S2 channel bits per second (Mcbps) at input to FEC • Up to 130 Mcbps DVB-S 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