ETC MULTILYNX

MultiLynx™ CL2151 Universal HFC
Interactive Cable Transceiver
OVERVIEW
The MultiLynx ™ CL2151 is a universal cable transceiver solution for advanced
set-top boxes (STB) and cable modems compliant with DVB/DAVIC, and DOCSIS
standards. The CL2151 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 for standardsbased deployments all over the world.
The CL2151 is a complete and highly integrated solution combining a
16-256 QAM in-band receiver, QPSK/QAM receiver for out-of-band downstream
reception, a QPSK/16-QAM burst transmitter, and a proven DAVIC/DVB and DOCSIS
1.0/1.1 media access controller (MAC). The chip includes a RISC processor with a DSP
instruction set enabling glueless interface to subscriber line ICs (SLICs) and a POD
interface.
The CL2151 inband demodulator is a 16-256 QAM. A second out-of-band
INTERFACE FEATURES:
downstream channel provides an option to use a QPSK or full 16-256 QAM demodulation, allowing for flexible implementation for DOCSIS, DVB/DAVIC or DVS 178
• OpenCable™ compliant by supporting
without changing any external components. Both channels are compliant with ITU J.83
OOB data to be bypassed to a POD
Annex A, B, and C and integrate a 10-bit A/D converter. The upstream QPSK/16-QAM
interface for MAC processing
burst transmitter along with ITU J.112 Annex A, B compliant FEC encoding provides a
robust and cost-effective solution for DVB/DAVIC, and DOCSIS applications.
• PHY DES implementation for physical
security compliant to the OpenCable
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
and DVB standards
• Powerful SPARC v8 internal processor
offloads the STB host processor from
implementation of DVB In-Band, DOCSIS, or EuroDOCSIS standards.
the MAC software tasks and provides
a DSP capability for IP telephony
applications
Optional POD Module
Annex B FEC
In-Band
Tuner
QAM
Demod
ADC
Annex A FEC
Annex B FEC
Diplexer
OOB
Tuner
QAM/
QPSK
Demod
ADC
QAM16/
QPSK
Mod
VGA
Amp Control
TS
Switch
DOCSIS
Pre-Process
Annex A FEC
CPU
&
DSP
TS Demux
Bus
Interface
Unit
Downstream
MAC
Processor
DES Dec
DVS 178 FEC
CL2151
DAVIC
OOB FEC
DAVIC
OOB
Framer
DAVIC
DVB-RC
MAC/SAR
FEC Encode
DES Enc
Upstream
DOCSIS MAC
IDC
UART
GPIO
STB Host
(POD CPU
Interface)
• Internal processor includes a DSP
instruction set necessary for IP
telephony applications
• Delivers a video telephony solution
Copy/CRC
Engine
simply by adding uLAW or aLAW
audio codec, aSLIC chipset and an
MPEG video source encoder/decoder
SDRAM
Control
SLIC I/F
SPI
SDRAM
High-Level Block Diagram of MultiLynx™ CL2151
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MultiLynx™ CL2151 Universal HFC Interactive Cable Transceiver
For more information please call:
In Band Receiver
Standards Compliance
DVB-C, ITU–T J.83 Annexes A, B, and C
A/D Converter
Internal 10-bit
Symbol Rate
Variable from 1 – 7.2 Mbaud
QAM Constellations
16, 32, 64, 128, 256 QAM (including DAVIC 256 QAM Map)
IF Input Frequencies
36 MHz or 44 MHz IF inputs
Output
Multiplexed transport stream output with forward channel
Additional I/O
Point of Deployment (POD) MPEG out to POD, in from POD, and out to Demux*
Forward Interactive Channel
Standards Compliance
DVB-RC, ITUT J.83 Annexes A, B, and C DAVIC 1.2 part 8, section 7.8; DVS 167, DVS 178
A/D Converter
Internal 10-bit
Symbol Rate
Variable from 0.772 – 7.2 Mbaud
QAM Constellations
16,32,64,128,256 QAM (including DAVIC 256 QAM Map)
QPSK
Differential Decoding
IF Input Frequencies
36 MHz or 44 MHz IF inputs
Output
Multiplexed transport stream output with broadcast channel to Media Access Control units
Additional I/O
Point of Deployment (POD) RX bypass signals
Return Channel
Standards Compliance
ITUT J.112 Annexes A and B; DVB-RC/DAVIC, DOCSIS 1.0 and DOCSIS 1.1, DVS 167,
DVS 178
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
Programmable RS encoding (T=010; k=16 253)
Programmable randomization
Programmable unique word/preamble
Internal slot timing and burst control
Analog and digital gain control
Additional I/O
Point of Deployment (POD) TX bypass signals
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), PCM/SLIC Interface*, General Purpose I/O (GPIO)
MAC
Standards Compliance
DOCSIS 1.0/1.1; DVB-RC/DAVIC; DAVIC OOB , DVS 167; DVB Inband; DAVIC Inband, DVS 178
Host
Slave Mode
PCI, Power PC, Coldfire (5206, 5307), 68K, SH3/4
Master Mode
Coldfire, 68K, Async Flash
Physical
Input Voltage
3.3V + 5% (tolerates 5V inputs, except SDRAM), 1.8V
Packaging
208-pin PQFP; 308-pin BGA
SPARC Operating Frequency 117 MHz or 88 MHz
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 and MultiLynx are 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. I20082
1101.1K.JC.XX - Printed in USA
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Communications
Company
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* available only in 308 pin BGA package