L64767 LSI Logic Corporation, L64767 Datasheet - Page 3

• Manufacturer Part Number: L64767
• Description: Smatv Qam Encoder
• Manufacturer: LSI Logic Corporation

In addition to the processing chain, the L64767 provides:
The L64767 can accept byte-parallel or bit-serial input and provides
flexible input synchronization support. It can automatically search for a
digital video broadcasting (DVB) or user-programmable 8-bit sync code.
Alternatively, the L64767 can use an external frame start signal to
indicate the beginning of a frame for input synchronization. By inserting
the Reed-Solomon (RS) check words into the circular FIFO buffer, the
device can also use an MPEG-2 input stream without gaps, or operate
on packets with gaps for RS check words.
The length of sync words and sync blocks is user-programmable, and
sync information can be reinserted as needed. The L64767 also provides
an error indication bit for MPEG-2 transport packet errors. Using this bit,
error flags from a preceding device can be properly inserted in the
MPEG-2 transport stream.
The L64767 can process quadrature amplitude modulation (QAM) levels
of 16, 32, 64, 128, and 256. The QAM level is user-programmable.
L64767 SMATV QAM Encoder
Global control and synchronization components
Microprocessor interface for configuring and monitoring internal
registers
Test scan chain
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