Vendor: Qbit labs Category: Broadcast

DVBS2

Technical specifications Modulation QPSK, 8PSK, 16APSK Roll-off Factor 0.2, 0.25, 0.35 Symbol Rate 1 to 300 Msym/sec (QPSK and 8P…

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Overview

Technical specifications
 

Modulation QPSK, 8PSK, 16APSK
Roll-off Factor 0.2, 0.25, 0.35
Symbol Rate 1 to 300 Msym/sec (QPSK and 8PSK)
Symbol Rate 1 to 200 Msym/sec (16APSK)
TX/RX Symbol Rate Step Size 100 Ksym/sec
Configuration TX/RX Independently Configurable
FEC Block Size 64 or 16K
Receiver ACM/VCM Yes
Capable .
Doppler Tolerance 2 Varies
Minimum Bit Rate 500 Kbps (QPSK ¼)

Key features

  •  A flexible input stream adapter, suitable for operation with single and multiple input streams of various formats (packetized or    continuous)
  •  A powerful FEC system based on low-density parity check (LDPC) codes concatenated with BCH codes, allowing quasi-error-free    operation at approx. 0.7 dB to 1 dB from the Shannon limit, depending on the transmission mode
  •  A wide range of code rates from 1/4 up to 9/10
  •  Four constellations (QPSK, 8PSK, 16APSK, 32APSK), ranging in spectrum efficiency from 2 bit/s/Hz to 5 bit/s/Hz, optimized for    operation over non-linear transponders
  •  A set of three spectrum shapes with roll-off factors of 0.35, 0.25 and 0.20
  •  Variable coding and modulation (VCM) may be applied in order to provide different levels of error protection to different service    components (e.g. SDTV and HDTV, audio, multimedia)
  •  In the case of interactive and point-to-point applications, the VCM functionality may be combined with the use of return channels to    achieve adaptive coding and modulation (ACM). This methods provides the best-suited channel protection and dynamic link adaptation    to  propagation conditions, targeting each individual receiving terminal

Block Diagram

DVBS2 block diagram

Applications

  •  DVB‑S2 is intended to provide Direct‑To‑Home (DTH) services for consumer Integrated Receiver Decoder (IRD), as well as collective    antenna systems (Satellite Master Antenna Television ‑ SMATV) and cable television headend stations
  • DVB-S2 includes provision for Digital TV Contribution and Satellite News Gathering (DTVC/DSNG) applications by satellite, consisting of point to point or point to multipoint transmissions, connecting fixed or transportable uplink and receiving stations

Files

Product Sheet Download

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Specifications

Identity

Part Number
DVBS2
Vendor
Qbit labs
Type
Silicon IP

Provider

Qbit labs
HQ: USA
We’re Qbit labs, an engineering services company made of smart people who provide solutions to the problems.
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Frequently asked questions about broadcast wireless IP cores

What is DVBS2?

DVBS2 is a Broadcast IP core from Qbit labs listed on Semi IP Hub.

How should engineers evaluate this Broadcast?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this Broadcast IP.

Can this semiconductor IP be compared with similar products?

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