DVB-S2 Devices
From LinuxTVWiki
(Difference between revisions)
| Line 41: | Line 41: | ||
• Digital Nyquist root filter | • Digital Nyquist root filter | ||
• With 0.20, 0.25, 0.35 excess bandwidth factors. | • With 0.20, 0.25, 0.35 excess bandwidth factors. | ||
| - | • | + | • DVB-S or DirecTVTM |
| - | • | + | • DVB-S2 broadcasting (CCM) |
| - | • | + | • DVB-S2 adaptive (ACM) |
• Dual decoding | • Dual decoding | ||
| - | • Up to 180 Mega | + | • Up to 180 Mega DVB-S2 channel bits per second (Mcbps) at input to FEC |
| - | • Up to 130 Mcbps | + | • Up to 130 Mcbps DVB-S or DirecTV legacy per FEC |
• Legacy DVB-S | • Legacy DVB-S | ||
• DVB-S2 | • DVB-S2 | ||
Revision as of 09:54, 17 October 2007
Note: DVB-S2 demodulator chips currently known are as listed
Contents |
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