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參數(shù)資料
| 型號： | L64767 |
| 廠商： | LSI CORP |
| 元件分類： | 消費(fèi)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)： | 1/32頁 |
| 文件大?。?/td> | 298K |
| 代理商： | L64767 |
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April 1999
Copyright 1995, 1996, 1997 by LSI Logic Corporation. All rights reserved.
1
L64767
SMATV QAM Encoder
Datasheet
Introduction
LSI Logic’s L64767 SMATV QAM Encoder is a highly-integrated device
designed specifically for Satellite Master Antenna Television (SMATV)
applications. The L64767 is ideally suited to any application that requires
a low-power, highly integrated forward error correction (FEC)
transmission encoder. Typical applications include rooftop SMATV
systems, cable head-ends, and optical networks in fiber-deep networks.
Figure 1
shows a basic SMATV QAM system using the L64767. The
device can process input from either an MPEG-2 transport encoder, a
satellite receiver, or a transmission network.
Figure 1. L64767 SMATV QAM System
The L64767 simplifies the design process for FEC and modulation
encoding systems by providing built-in signal processing capabilities and
a byte-parallel, power saving architecture. The L64767’s ease of use will
help system engineers create the next generation of time-to-volume
sensitive digital products. In contrast, previous solutions for these
systems forced system engineers to use many programmable and
discrete devices on large circuit boards. These end products were
expensive and power-intensive, both of which are unacceptable for
today’s SMATV applications.
Passive
Filter
Cable
Plant
PLL
I
Q
D/A
Analog
Mod
Transmission
Network
MPEG-2 Transport
MUX
QPSK Satellite Receiver
LSI Logic
L64704
L64767
MD97.1
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