- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373782 > ZL10355QCF (ZARLINK SEMICONDUCTOR INC) Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) PDF資料下載
參數(shù)資料
| 型號： | ZL10355QCF |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBD, LQFP-64 |
| 文件頁數(shù)： | 8/26頁 |
| 文件大?。?/td> | 456K |
| 代理商： | ZL10355QCF |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁
ZL10355
Data Sheet
8
Zarlink Semiconductor Inc.
2.0 Functional Description
A functional block diagram of the ZL10355 OFDM demodulator is shown in Figure 3. This accepts an IF analog
signal and delivers a stream of demodulated soft decision data to the on-chip Viterbi decoder. Clock, timing and
frequency synchronization operations are all digital and there are no analog control loops except the AGC. The
frequency capture range is large enough for all practical applications. This demodulator has novel algorithms to
combat impulse noise as well as co-channel and adjacent channel interference. If the modulation is hierarchical,
the OFDM outputs both high and low priority data streams. Only one of these streams is FEC-decoded, but the FEC
can be switched from one stream to another with minimal interruption to the transport stream.
Figure 3 - OFDM Demodulator Diagram
The FEC module shown in Figure 4 consists of a concatenated convolutional (Viterbi) and Reed-Solomon decoder
separated by a depth-12 convolutional de-interleaver. The Viterbi decoder operates on 5-bit soft decisions to
provide the best performance over a wide range of channel conditions. The trace-back depth of 128 ensures
minimum loss of performance due to inevitable survivor truncation, especially at high code rates. Both the Viterbi
and Reed-Solomon decoders are equipped with bit-error monitors. The former provides the bit error rate (BER) at
the OFDM output. The latter is the more useful measure as it gives the Viterbi output BER. The error collecting
intervals of these are programmable over a very wide range.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZL10355QCF1 | Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| ZL10355QCG | Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| ZL10355QCG1 | Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| ZL20200LDF | Dual Band IS136/AMPS Transceiver |
| ZL20200LDF1 | Dual Band IS136/AMPS Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZL10355QCF1 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| ZL10355QCG | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| ZL10355QCG1 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Nordig Unified DVB-T COFDM Terrestrial Demodulator for PC-TV and Hand-held Digital TV(DTV) |
| ZL103C | 制造商:Velleman Inc 功能描述: 制造商:Velleman Inc 功能描述:Heavy-Duty Aluminium Torch 3 X D |
| ZL10B | 制造商:YEASHIN 制造商全稱:YEASHIN 功能描述:500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。