L64777 LSI Logic Corporation, L64777 Datasheet - Page 17

• Manufacturer Part Number: L64777
• Description: DVB Qam Modulator
• Manufacturer: LSI Logic Corporation

Figure 2.2
ICLK
Data
* Only used in PLL Mode 2
1
8
Stage
Input
Sync
Phase and Freq.
8
Generation PLL
(incl. VCO and
Symbol Clock
Data Path
Comp.)
Circular
Buffer
FIFO
Word
128
8
Reinsertion
Dispersal
Error flag
Sync &
Energy
Global Control and Synchronization - Start/Stop Signals Generation
OCLK
divided ICLK
Serial Microprocessor Interface
8
(204,188)
Encoder
SCL
RS
8
SDA
Interleaver
Convol.
8
PCLK
Byte to
m-tuple
m
SCAN chain
JTAG Test
RAMbist
Mapping
Encoder
& QAM
Diff.
& freq compare
I
Q
NCO*
Nyquist
Square
Root
Filter
I
Q
OCLK
polator*
Inter-
10
10
10
10
DAC
DAC
Q
I