NXP Launches Industry's First Dual-Modem AISG Transceiver for Wireless Base Stations

NXP Launches Industry's First Dual-Modem AISG Transceiver for Wireless Base 
Stations 
Fully Integrated, Programmable Solution Also Available With Embedded
ARM(R) Cortex(TM)-M3 Processor 
EINDHOVEN, THE NETHERLANDS -- (Marketwire) -- 03/18/13 --  NXP
Semiconductors N.V. (NASDAQ: NXPI) today introduced a groundbreaking
family of programmable AISG transceivers for wireless base stations
and antenna line devices (ALDs) such as tower-mounted amplifiers
(TMAs) and remote electric tilt (RET) antennas. The new family
includes the industry's first fully integrated dual-modem AISG
transceivers, as well as the first AISG system solution to integrate
an ARM(R) Cortex(TM)-M3 processor alongside two AISG modems.
DSP-based and programmable, NXP's AISG transceivers offer significant
flexibility, making it easy to change settings during development,
manufacturing, or even site installation. While many manufacturers
today use a separate microcontroller and a high number of discrete
components to deliver AISG on-off keying (OOK) modem functionality,
the exceptionally high level of integration delivered by NXP's
transceivers helps to reduce the total component count, board space
and costs, while introducing advanced functionality.  
Remote electric tilt enables dynamic adjustment of base station
antenna beams for optimal network coverage, and is becoming a
standard feature for wireless base station antennas. By embedding
AISG transceiver functionality inside the antenna itself to control
the RET, infrastructure providers can eliminate additional
Smart-Bias-T and RS485 cabling to the antenna, increasing reliability
while reducing tower costs. NXP's dual-modem AISG devices are
particularly suitable for ALDs with multiple feeder cable
connections, like TMAs and multiband antennas. Further, the AISG
transceivers can be used as part of a larger framework, outlined
separately by NXP in a white paper released today, to enable remote
"site scans" and monitoring of mobile tower cabling connectivity
failures, which typically requires costly, inefficient tower climbing
and visual inspections. A video overview of NXP's AISG transceivers
is available here: http://youtu.be/uxU2FJSIZuc 
"While the Antenna Interface Standards Group protocol has been a
major step in the right direction, the fact remains that there is
still no way to effectively gather information on mobile tower
connectivity remotely. With the growth of 3G and LTE, the complexity
of wireless base stations and the number of antennas and other
devices installed from various manufacturers will increase
dramatically -- compounding maintenance costs and headaches for both
network operators and equipment manufacturers," said Rick Dumont,
global marketing director for AISG products, NXP Semiconductors. "Our
new AISG transceivers provide a compact and cost-effective solution
for multi-channel AISG communication between tower-mounted ALDs and
the base station to optimize base station site performance. At the
same time, we're opening the door to better interoperability across
components, which could ultimately allow remote monitoring,
diagnostics and debugging of a wider range of devices in the tower." 
AISG transceivers with multi-carrier feature
 The single-modem
ASC3011 and dual-modem ASC3012 are power-efficient, highly integrated
AISG modems in a small HVQFN64 package. The modems can interface via
a two- or three-wire UART or with an RS485 transceiver, and modem
parameters can be programmed using an I2C interface. Up to 4 NXP AISG
transceivers (providing up to 8 AISG OOK modems) can be connected to
a single I2C-bus, and each modem can be programmed with its own
settings as required by the base station site. 
In addition to the default AISG carrier frequency of 2.176 MHz, all
NXP AISG transceivers also support 4.352-MHz and 6.528-MHz carrier
frequencies. This offers the possibility of multiplexing 3 AISG
channels on the same RF feeder cable. Receiver bandpass filters are
integrated to effectively block any out-of-band interference signals.
Users can program the receiver sensitivity to "High" and "Ultra High"
levels, in addition to standard AISG sensitivity. The transmitter can
deliver up to 10 dBm power to the RF feeder cable, and can have an
integrated 50-ohm receiver and transmitter termination. The
transceivers conform to AISG1: Issue 1.1 and AISG v2.0. 
AISG transceivers with embedded ARM Cortex-M3 microcontroller
 The
single-modem ASC3101 and dual-modem ASC3112 are optimized AISG
controllers, including a 94-MHz ARM Cortex-M3 processor with
integrated AISG modem(s) and all peripheral interfaces required to
control antenna line devices. These peripherals include 6 PWM outputs
to drive RET antenna motors, and a number of general purpose
ADCs/DACs for measurement and control functions.  
The integrated AISG transceivers with the embedded ARM processor are
shipped with a full software development kit (SDK), including the
reference AISG stack for basic control and power management, which is
provided to all NXP AISG customers to promote device
interoperability. Each controller offers up to 256 kB of embedded
flash and 16 kB of SRAM to run the application software. In addition,
a real-time clock with 32 kHz crystal and 44 configurable GPIOs are
available. The DSP-based modem also facilitates field upgrades for
higher transfer speeds that comply with future protocols. The
programmable modems enable optimization of receiver sensitivity,
based on signal strength. 
Availability
 The ASC3101, ASC3112,
ASC3011 and ASC3012 are currently sampling with lead customers, with
volume manufacturing starting at the end of March 2013.  
Links 


 
--  VIDEO: Introducing NXP's dual-modem AISG transceivers for wireless
    base stations:
     http://youtu.be/uxU2FJSIZuc
--  NXP AISG transceivers and controllers:
    http://www.nxp.com/products/rf/aisg_transceivers_and_controllers/
--  WHITE PAPER: Proposal for Basestation Site Scanning with AISG Modems:
    
    
http://www.nxp.com/documents/white_paper/NXP_Basestation_Site_Scanning_proposal_
with_AISG_modems_web.pdf

  
About NXP Semiconductors
 NXP Semiconductors N.V. (NASDAQ: NXPI)
provides High Performance Mixed Signal and Standard Product solutions
that leverage its leading RF, Analog, Power Management, Interface,
Security and Digital Processing expertise. These innovations are used
in a wide range of automotive, identification, wireless
infrastructure, lighting, industrial, mobile, consumer and computing
applications. A global semiconductor company with operations in more
than 25 countries, NXP posted unaudited revenue of $4.36 billion in
2012. Additional information can be found by visiting www.nxp.com.  
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