28985-BRF-001-A_15 [TE]
Octal G.shdsl Transceiver with Embedded Microprocessor;
| 型号： | 28985-BRF-001-A_15 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Octal G.shdsl Transceiver with Embedded Microprocessor |
| 文件： | 总2页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ZipWireMulti™
Octal G.shdsl Transceiver with Embedded Microprocessor
CX28985
Complete G.shdsl/HDSL2/SDSL/
HDSL/IDSL Multimode DSL Solution
>
K EY FEATURES
> Eight-port CO solution
implementing LoopWizard
technology
> Embedded microprocessor
> Simultaneous operation
ofUTOPIA Level 2 and PCM
interfaces
The ZipWireMulti eight-port multimode DSL solution
™
™
implements Mindspeed Technologies’ LoopWizard
> Multimode operation
technology to diagnose line problems without expensive
test equipment or truck rolls (see LoopWizard xDSL Loop
Diagnotic Software literature). The ZipWireMulti DSL
solution goes beyond simple compliance with the ITU G.shdsl
standard by supporting the optional enhanced performance
asymmetrical PSD (EPAP) modes of operation.In addition,
it complies with the ANSI HDSL2 standard (ANSI T1.418)
and provides interoperability with Mindspeed’s
> Low power consumption
> Highly integrated solution
> Interoperable with ZipWire
2B1Q transceivers including
AutoBaud
The embedded microprocessor and software handle the
EOC processing and many other functions often delegated
to an external host controller in competing solutions. This
greatly reduces software-porting effort and eliminates
real-time processing requirements for an external host
controller. The host controls the ZipWireMulti through a
simple and well-defined software API structure while the
internal ARM processor handes all real-time processing.
market-leading ZipWire™ transceivers by operating in
2B1Q multi-rate mode. The 2B1Q mode supports
AutoBaud™ for SDSL interoperability, rate optimization,
fast connect times and standards-based HDSL operation.
The ZipWireMulti also runs in IDSL mode for interoperability
with basic-rate ISDN repeaters. The solution supports
Mindspeed’s proprietary modes, such as 32-PAM,64 Kbps
and 3.088 Mbps operation, which provide enhanced
spectral compatibility, extended subscriber-line reach
and high-speed operation. One hardware circuit (i.e.,one
transformer, crystal and hybrid) supports all these modes,
which can be configured in real time via software control.
UTOPIA and PCM Interfaces Operate
Simultaneously
The ZipWireMulti’s integrated framers include
full-featured UTOPIA Level 2 and PCM interfaces. The
UTOPIAinterface includes ATM TC-layer processing.
The DSL payload can be mapped to either interface, or
split between them to enable simultaneous connections
to ATM- and TDM-based systems. This feature is
programmable on a per-port basis, and supports a mix
of channels transporting data, data plus time slot voice,
or only time slot voice.
Embedded Microprocessor
The ZipWireMulti chipset includes an embedded ARM
microprocessor and a full suite of software that
facilitates speedy, simplified development of systems that
comply with all applicable ITU, ANSI and ETSI standards.
>
The framer automatically extracts and inserts DSL overhead
(i.e., EOC,indicator and Z-bits, CRC,sync word, etc.) and passes
it to the embedded microprocessor for processing.
In addition,the framer supports all G.shdsl, HDSL2, HDSL
and IDSL frame formats; EOC messaging protocols; and other
non-standard SDSL frame formats. For non-framed protocols,
the ZipWireMulti supports a framer bypass mode.
Integrated Line Driver and Frequency Synthesizer
The ZipWireMulti includes an integrated line driver and
frequency synthesizer for a full DSL solution.The integrated
line driver can drive the high line-power EPAPs for payload
rates of768; 1,544; 2,048; and 2,304 Kbps, in compliance with
the G.shdsl standard.The frequency synthesizer, along with
the rest ofthe ZipWireMulti,supports data rates from 64
Kbps to 3.088 Mbps, and requires only one external crystal.
This highly integrated DSL solution enables OEMs to design
and manufacture the most feature-rich, lowest-power, and
highest-density DSL equipment in the industry.
CX28985 Block Diagram
Product Highlights
• Multimode operation including ITU
G.shdsl,with EPAP modes
(ITU G.991.2)
• Low power consumption of< 1 W at
2.32 Gbps ,which includes the AFE
and line-driver dissipation
• Central office (COT) and remote
(RT) operation
Applications
• Digital subscriber line access
muxes (DSLAMs)
• Individual clock-recovery circuits
per channel
• ITU G.handshake (ITU G.994.1)
• HDSL2 (ANSI T1.418)
• Highly integrated solution includes
framer, microprocessor, ROM/RAM,
frequency synthesizer, DSP, AFE and
line driver
• DSL-enabled digital loop carriers
(DLCs)
• Fast warm startup
• SDSL/2B1Q (AutoBaud)
• Glueless interface to popular
microprocessors
• Nx64K data transport
• Remote LAN access
• HDSL (ITU G.991.1,ETS 101 135 and
ANSI TR-28)
• Embedded microprocessor for
autonomous operation and EOC
processing
• Single hardware circuit supports all
speeds and modes ofoperation
• T1 and E1 HDSL-enabled
transport systems
• IDSL (ANSI T1.601)
• +1.8 V, +3.3 V and +12 V power
supplies
• Proprietary/extended reach (ANSI
spectrum management for loop
transmission systems)
• Data rates from 64 Kbps to 3.088
Mbps in 8 Kbps increments
• Cellular base-station data links
• Campus modems
• JTAG boundary scan
• Interoperability with ZipWire 2B1Q
transceivers, including AutoBaud
• Data, voice and video
transport systems
• Proprietary/high-speed (ANSI
spectrum management for loop
transmission systems)
• Package: 27 x 27 mm PBGA,
7 x 7 mm LGA
• Simultaneous operation ofUTOPIA
Level 2 and PCM interfaces on a
per-channel basis
-
º
• Operating temperature: 40 C
to +85 C
º
™
www.mindspeed.com/salesoffices
General Information:
© 2001 Mindspeed Technologies , a Conexant business. All rights reserved.Mindspeed
and the Mindspeed logo are trademarks of Mindspeed Technologies. All other
trademarks are the property of their respective owners. Although Mindspeed
Technologies strives for accuracy in all its publications, this material may contain
errors or omissions and is subject to change without notice. This material is provided
as is and without any express or implied warranties, including merchantability, fitness
for a particular purpose and non-infringement. Mindspeed Technologies shall not be
liable for any special, indirect,incidental or consequential damages as a result of its use.
U.S.and Canada: (800) 854-8099
International: (949) 483-6996
Headquarters – Newport Beach
4000 MacArthur Blvd. East Tower
Newport Beach, CA 92660
Order# 500056A M01-0293
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