參數(shù)資料
型號: L64767
廠商: LSI CORP
元件分類: 消費家電
英文描述: SMATV(Satellite Master Antenna Television) QAM Encoder(衛(wèi)星主天線電視正交振幅調(diào)制編碼器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: MQUAD-100
文件頁數(shù): 2/32頁
文件大?。?/td> 298K
代理商: L64767
2
L64767 SMATV QAM Encoder
The L64767 integrates CoreWare
processing elements that conform to
the specifications described in the document DTVB1190/DTVC37,
Revision 3
Figure 2
shows the L64767’s major functional blocks.
Figure 2. L64767 Functional Blocks
The CoreWare processing elements of the L64767 comprise the data
processing chain of the device and include:
Input synchronizer
Circular FIFO buffer
Sync/error flag inserter and scrambler
Reed-Solomon encoder
Convolutional interleaver
Bytes to m-tuple converter
Differential encoder and QAM mapper
Nyquist filter
Reed-
Solomon
Encoder
Convolutional
Interleaver
and
QAM
Mapper
Bytes
to
m-tuple
Global Control and Synchronization - Start/Stop Signals Generation
I
CLK
Microprocessor Interface
DATA[7:0] DTACK_N
CS_N
OCLK
Data In
8
Nyquist
Filter
READ
Diff.
Encoder
Input
Sync
Test Scan Chain
Sync/Error
Flag
Inserter
and
Scrambler
FIFO
Buffer
Circular
10-bit
Q
10-bit
I
4
4
m
8
8
8
8
8
AS_N
MD97.3
PLL
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