MultiLynx
TM
CL2161 Universal HFC
Interactive Cable Transceiver
The
Communications
Company
TM
Tuner
ADC
Annex A FEC
Annex B FEC
DOCSIS
Pre
Process
FEC Encode
DOCSIS
MAC
DES
Encoder
DES
Decoder
Bus
Interface
Unit
Copy/CRC
Engine
SDRAM
Control
SDRAM
Downstream
MAC
Processor
CPU and DSP
QAM
Demod
CL2161
QPSK
Mod
Amp Control
SPI
IDC
UART
GPIO
Diplexer
VGA
High-Level Block Diagram of MultiLynx
TM
CL2161
O V E R V I E W
The MultiLynx
TM
CL2161 is a universal cable transceiver solution for
advanced set-top boxes (STBs) and cable modems compliant with DVB In-Band,
DOCSIS, and EuroDOCSIS standards. The CL2161 is built for STB and cable
modem manufacturers requiring the maximum performance with the lowest
system BOM cost. Its high level of integration provides manufacturers with a
flexible, yet quick time-to-market solution.
The CL2161 is a complete and highly integrated solution combining a QAM
demodulator for downstream reception, a QPSK/16-QAM modulator for
upstream transmission, and a field-proven DOCSIS 1.0/1.1-compliant media
access controller (MAC).
The downstream channel provides full 16-256 QAM demodulation and is
compliant with ITU J.83 Annex A and B and integrates a 10 bit A/D converter.
The upstream QPSK/16-QAM burst transmitter along with ITU J.112 Annex A-,
B-compliant FEC encoding provides a robust and cost-effective solution for
DOCSIS applications.
The hardware MAC (with packet parsing, filtering, and decryption), and the
two internal processors an 88 MHz mini-RISC and 117 MHz SPARC v8
processor, upon which the standard specific MAC software is executed allow
for flexible implementation of DVB In-Band, DOCSIS, or EuroDOCSIS standards.
The CL2161 has a full complement of low-speed peripheral interface
devices including those commonly used on commercial tuners such as SPI,
inter-device communications (IDC), UART, and GPIO interfaces.
MultiLynx
TM
CL2161 Universal HFC Interactive Cable Transceiver
The SPARC processor internal to the CL2161 includes a DSP instruction set
necessary for IP telephony applications. When combined with a MPEG source
encoder/decoder, this solution delivers video telephony technology to the
consumer.
The
Communications
Company
TM
For more information please call:
LSI Logic Corporation
North American Headquarters, Milpitas, CA
Tel: 800 574 4286
North America
Milpitas, CA
USA
Phone: 1-408-490-8000
Fax: 1-408-490-8590
Quebec, Canada
Phone: 1-514-426-5011
Fax: 1-514-426-7119
Europe
Crawley, West Sussex
United Kingdom
Phone: 44-1293-651100
Fax: 44-1293-651119
China
Beijing, China
Phone: 86-10-626-38296
Fax: 86-10-626-38322
Chengdu, China
Phone: 86-28-6713-150
Fax: 86-28-6713-694
Japan
Kohoku-Ku, Yokohama
Kanagawa Japan
Phone: 81-45-474-7571
Fax: 81-45-474-7570
Korea
Seoul, Korea
Phone: 822-561-9011
Fax: 822-561-9021
Taiwan
Taipei, Taiwan
Phone: 886-22-517-4938
Fax: 886-22-517-4937
LSI Logic logo design, The Communications Company,
and MultiLynx are trademarks or registered trademarks of
LSI Logic Corporation. All other brand and product names
may be trademarks of their respective companies.
LSI Logic Corporation reserves the right to make changes
to any products and services herein at any time without
notice. LSI Logic does not assume any responsibility or
liability arising out of the application or use of any product
or service described herein, except as expressly agreed to in
writing by LSI Logic; nor does the purchase, lease, or use of
a product or service from LSI Logic convey a license under
any patent rights, copyrights, trademark rights, or any other
of the intellectual property rights of LSI Logic or of third parties.
Copyright 2001 by LSI Logic Corporation.
All rights reserved.
Order No. I20069
901.1K.JG.IK - Printed in USA
Forward Channel
Standards Compliance
ITU-T J.83 Annex A and B, DOCSIS 1.0, DOCSIS 1.1
A/D Converter
Internal 10-bit
Symbol Rate
Variable from 1 7.2 Mbaud
QAM Constellations
16 - 256 QAM
IF Input Frequencies
36 MHz or 44 MHz IF inputs
Output
Optional transport stream output
Return Channel
Standards Compliance
DOCSIS 1.0 and DOCSIS 1.1
D/A Converter
Internal 10-bit
RF Output
5 MHz to 65 MHz
Modulation
QPSK and 16 QAM
DOCSIS 1.0 Features
Advanced modem pre-equalization of transmit signal
Internal CMTS clock synchronization: no VCXO
Additional Features
Analog and digital gain control
Processor and Control
Internal Microprocessor
117 MHz SPARC V8 processor for Media Access
Control software
Clock Generation
Onboard PLL running from a single external crystal
AGC Output
Supports many variable gain amplifier devices, including, but not
limited to: Analog Devices AD8321, Lucent Technologies V4911,
Anadigics ARA05050 and ARA 1400, Maxim MAX3501
Tuner Control
Implemented via SPI, IDC, or GPIO
Peripherals
Interface Modules
Inter-Device Communications (IDC, Mastermode only)
On-chip UART
Serial Peripheral Interface (SPI)
General Purpose I/O (GPIO)
MAC
Standards Compliance
DOCSIS 1.0, DOCSIS 1.1, EuroDOCSIS, DVB In-Band
Host
Master Mode
Coldfire, 68K, Async Flash
Slave Mode
PCI, Power PC, Coldfire (5206, 5307), 68K, SH3/4
Physical
Input Voltage
3.3V + 5% (tolerates 5V inputs, except SDRAM), 1.8V
Packaging
208-pin PQFP
SPARC Operating Frequency
117 MHz or 88 MHz
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