Cookie
This website requires cookies to provide all of its features. For more information on what data is contained in the cookies, please see our Privacy Policy page. To accept cookies from this site, please click the Accept button below.
| 供应商 | T2M |
|---|---|
| 型号 | DVB-S2X NarrowBand Demodulator & Decoder IP (Silicon Proven) |
| 类型 | Soft IP |
| 到期日 | Silicon proven |
| 源网址 | View more |
| 特征 | This is single demodulator subsystem compliant DVB-S/S2/S2X satellite standards. t is meant to be integrated in the L2A/L2B SOCs. The single demodulator subsystem is made of several blocks. 1 narrow-band demodulator DVB-S / DVBS2 / DVB-S2X up to 65 Msymb/s. 1 DVB-S FEC (Viterbi, Reed-Solomon, Super FEC) 1 DVB-S2 / DVB-S2X FEC (LDPC + BCH decoder) 1 Transport Stream management 1 DiSEqC (1 Rx, 1Tx) 1 FSK QPSK, 8PSK, 16APSK, 32APSK, 64APSK, CCM, VCM, ACM |
| 详情页 | View more |
| 附件链接 | View more |
This is NarrowBand demodulator IP is silicon proven and extratced from production chipsets, it performs demodulation according to DVB-S, legacy DirectTV, DVB-S2 and DVB-S2X specifications. The input signal from the tuner is A-to-D converted on 10 bits. The DC offset, amplitude mismatch and quadrature error are corrected and the AGC signal level to the tuner is calculated. The carrier frequency offset is corrected. Then the signal is sub sampled and Nyquist root filtered. The signal amplitude is controlled through the second stage (AGC2) block. The pilots, when present, are used to help phase lock to the symbol stream. The signal is equalized, descrambled, and passed to the FEC. An internal state machine controls the automatic acquisition of a channel with various entry points, including warm start (known symbol frequency, small carrier offset), cold start (known symbol frequency and large carrier frequency offset), and blind search (all parameters unknown).
The DVB S2X NarrowBand IP main demodulation path takes its data from a dual ADC sampling the signals I/Q coming from an external tuner. The ADC is clocked at 135MHz and the data are on 10bits. After demodulation, the data is sent either to a DVB-S Forward Error Correction (FEC) path or a DVB-S2 FEC path.
The DVB-S FEC is based on a Viterbi and Reed-Solomon decoders. A SuperFEC mode is also implemented where a second Viterbi block is added to improve the performances. The DVB-S2 FEC is based on a LDPC+BCH decoder and a packet delineator block needed to extract the physical packets (MPEG or GSE) from the FEC frame. The decoded & corrected data is then sent to a transport stream interface managing standard TS-based transmission to the back-end decoder. In addition to this main demodulation path, peripheral interfaces are integrated, a DiSEqC and an FSK interfaces.They are both protocols to communicate with the LNB antenna on the coaxial cable.
The DVB S2X NarrowBand IP main demodulation path takes its data from a dual ADC sampling the signals I/Q coming from an external tuner. The ADC is clocked at 135MHz and the data are on 10bits. After demodulation, the data is sent either to a DVB-S Forward Error Correction (FEC) path or a DVB-S2 FEC path.
The DVB-S FEC is based on a Viterbi and Reed-Solomon decoders. A SuperFEC mode is also implemented where a second Viterbi block is added to improve the performances. The DVB-S2 FEC is based on a LDPC+BCH decoder and a packet delineator block needed to extract the physical packets (MPEG or GSE) from the FEC frame. The decoded & corrected data is then sent to a transport stream interface managing standard TS-based transmission to the back-end decoder. In addition to this main demodulation path, peripheral interfaces are integrated, a DiSEqC and an FSK interfaces.They are both protocols to communicate with the LNB antenna on the coaxial cable.
FAQ - Frequently Asked Questions
Welcome to Sparsh\'s FAQ! Here you\'ll find answers to our most asked questions. Still have something we should know? Send us an email, we\'re happy to help!
Q1: How can I change my shipping address?
A1: Consectetur morbi, suscipit donec semper vitae sed a class vivamus. Sodales montes porttitor adipiscing nisl sit dui sem fringilla elit. Sagittis lacinia montes nisl mollis lobortis cras nisi. Conubia montes odio taciti magnis morbi mauris lorem pulvinar mollis aliquam. Faucibus facilisi tempus tincidunt eu laoreet. Porta donec vitae suscipit habitasse fermentum vivamus!
- Eget est ad potenti primis id rhoncus vestibulum vestibulum. Ante est vel mattis mattis. Vel eleifend auctor lorem, odio proin quisque potenti parturient euismod. Tristique massa quis morbi netus magna pretium laoreet. Inceptos eget massa ac lacinia vitae suspendisse orci nascetur vel torquent. Feugiat eleifend eget aenean facilisi sapien proin leo dictumst semper orci ipsum? Ultrices duis tellus consequat nostra.
Q2: How do I activate my account?
A2: The instructions to activate your account will be sent to your email once you have submitted the registration form. If you did not receive this email, your email service provider’s mailing software may be blocking it. You can try checking your junk / spam folder or contact us at magento@sparsh-technologies.com
Q3: How do I cancel my orders before I make a payment?
A3: After logging into your account, go to your Shopping Cart. Here, you will be able to make a payment or cancel your order. We will not give refunds if payment is verified.
Q4: How long will it take for my order to arrive after I make payment?
A4: Members who ship their orders within Inida should expect to receive their orders within 2 working days upon payment verification depending on the count of orders received.
If you experience delays in receiving your order, contact us immediately and we will help to confirm the status of your order.
Q5: What are the payment methods available?
A5: At the moment, we only accept Credit/Debit cards and Paypal payments.
Q6: How do I make payments using Paypal? How does it work?
A6: Paypal is the easiest way to make payments online. While checking out your order, you will be redirected to the Paypal website. Be sure to fill in correct details for fast & hassle-free payment processing. After a successful Paypal payment, a payment advice will be automatically generated to Samplestore.com system for your order.
It\'s fast, easy & secure.