Aerospace Amplifiers Products Embedded Technology

Products
Amplifiers
Optical converter and driver
amplifier
The iT6134 from iTerra generates an RZ
format from a NRZ data stream and clock
signal, and is optimized for 11.1 Gbps longhaul LiNbO3 applications. It has typical
peak-to-peak jitter of less than 10 ps, highinput sensitivity from 250 mVPK-PK to 500
mVPK-PK, and adjustable RZ output voltage
to 6 VPK-PK. The device is housed in a 7 mm
x 8 mm ceramic SMT package and operates
from +3.3 Vdc and -5.2 Vdc power supplies.
Control voltage range is -3.0 V to +1.0 V.
Gate voltage range is from –2.0 V to +1.0 V.
Both clock and data waveforms are permitted
a maximum of 1 VPK-PK.
iTerra
(650) 424-1937
www.iterrac.com
Bipolar power transistor
M/A-COM’s MAPRST1030-1KS is
a 1000 W peak, class C bipolar transistor
designed for 1030 MHz pulsed avionics
applications. The transistor is suited to operate
in IFF/TACAN (tactical air navigation system)
or similar short-pulse formats, and features
a minimum gain of 8.0 dB (greater than
8.6 dB typical) with 45% minimum collector
efficiency (greater than 50% typical) on a
50 Vdc supply.
Designed for maximum durability, the
device is housed in a hermetic, ceramic/metal
package for high reliability that can tolerate
a load mismatch ratio of 10:1 without damage or loss in performance. Driver stages for
the MAPRST1030-1KS are also available,
including the MRF10005, MRF10031 and
MRF10150. The MAPRST1030-1KS is priced
at $393 for 100 pieces.
M/A COM
(978) 442-5000
www.macom.com
High-frequency PAs
Mini-Circuits’ ZHL high-power amplifiers are designed for heavy-duty, reliable operation for extreme communication
applications. The family covers power ratings of 5 W, 10 W, 20 W, 50 W, and 100 W.
They are available with an optional heat
sink/fan. Each unit operates from +24 Vdc,
including the fan. Collectively, the family
covers the 20 MHz to 2 GHz range.
The ZHL-5W-2G operates from 800 MHz
to 2000 MHz, with a typical gain of 45 dB,
a maximum output power of 38 dBm, a NF
of 8.0 dB, an output VSWR of 1.5:1.0, and
consumes a maximum supply current of 2 A.
The ZHL-10W-2G operates from 800 MHz
to 2000 MHz, with a typical gain of 43 dB,
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708RFD32.indd 50
a maximum output power of 41 dBm, a NF
of 7.0 dB, an output VSWR of 1.3:1.0, and
consumes a maximum supply current of 5 A.
The ZHL-20W-13 operates from 20 MHz
to 1000 MHz, with a typical gain of 50 dB,
a maximum output power of 43 dBm, a NF
of 3.5 dB, an output VSWR of 2.5:1.0, and
consumes a maximum supply current of 2.8 A.
The ZHL-50W-52 operates from 50 MHz
to 500 MHz, with a typical gain of 50 dB,
a maximum output power of 48 dBm, a NF
of 6.0 dB, an output VSWR of 2.0:1.0, and
consumes a maximum supply current of 9.3 A.
The ZHL-100W-52 operates from 50 MHz
to 500 MHz, with a typical gain of 50 dB, a
maximum output power of 48.5 dBm, a NF
of 6.5 dB, an output VSWR of 2.5:1.0, and
consumes a maximum supply current of 9.3 A.
Pricing is from $945 each for one to nine
units.
Mini-Circuits
(718) 934-4500
www.minicircuits.com
GaN-on-Si transistors
Compact military radio
FreeWave Technologies’ MM2 900
MHz radio is a spread-spectrum unit with a
compact form factor. The radio is suited for
advanced military equipment where space
is at a premium, such as unmanned aerial
vehicles (UAV), robotic and guided parachute
applications.
Specific features of the MM2 include dimensions of 50.8 mm (length) x 31.5 mm (width) x
9.6 mm (height), a GAsFET RF front end with
good overload immunity and sensitivity, selectable speeds ranging 56 kilobytes per second to
1.2 megabytes per second, and high noise immunity. The radio can operate simultaneously
as a slave and as a repeater, and uses proprietary
spread-spectrum technology to prevent detection and unauthorized access.
The unit features 128-bit AES encryption,
and is 100% reliability tested for RF performance from –40 °C to +85 °C. The MM2 900
MHz radio will be available for shipment in
the fourth quarter.
FreeWave Technologies
(866) 399-4930
www.freewave.com
Embedded
Technology
Voltage translator
The NPT25190 and NPT25240 from
Nitronex are 48 V GaN-on-silicon devices designed for WiMAX and 3G/3G LTE
waveforms operating in frequency bands of
2.3 GHz to 2.7 GHz. Typical performance
is rated using a mobile WiMAX waveform
defined as a single-carrier OFDM signal
64 QAM ¾, 8 burst, 7 MHz channel bandwidth, 10.3 dB PAR at 0.01% probability
on CCDF. Under these test conditions, the
NPT25190 will deliver 15 dB of gain (typical), 22% efficiency, and less than 2.5% EVM
at greater than 24 W of power at elevated
flange temperatures (above 95 °C) required
by next-generation systems. The NPT25190 is
rated for 190 W typical P3dB at 2.6 GHz. The
NPT25240 is rated for 240 W typical P3dB at
2.6 GHz. Breakdown voltage for both devices
is greater than 200 V. The planned availability
is for initial samples in the third quarter and
production quantities in the fourth quarter.
Nitronex
(919) 807-9100
www.nitronex.com
Defense/Military/
Aerospace
www.rfdesign.com
Fairchild Semiconductor’s FXL4TD245
is a four-bit, low-voltage dual-supply voltage
translator with independent-direction controls.
This control feature increases design flexibility
by allowing designers to control the direction of
each bit individually compared to typical configurations that control the direction of bidirectional voltage translators in groups of four, eight
or 16 bits. The translator’s voltage range of
1.1 V to 3.6 V simplifies designs and accommodates the voltage requirements of a variety of
applications. The translator’s 2.5 mm x 3.5
mm DQFN package also provides 65% board
space savings compared to TSSOP packaging.
The FXL4TD245 is fully configurable. The
A port tracks the level of the VCCA supply and
the B port tracks the level of the VCCB supply.
Both supplies are independent, allowing designers
to select the translation levels and set the high side
or low side according to their specifications.
Other translator solutions force designers to use
August 2007
8/24/2007 10:18:55 AM
a preset high side or low side and to determine
the voltage. Samples are available, and pricing
is $0.48 for 1000 pieces.
Fairchild Semiconductor
(207) 775-8100
www.fairchildsemi.com
Fiber Optics
Power over fiber system
The RLH fiber-optic link power over fiber
(PoF) system from RLH Industries provides
power transmission over three multimode optical fibers. It is designed to provide true isolated
power to a fiber-optic-link CO side card when
line sealing current or local ac power is not
available. The PoF system delivers constant
power and does not require backup batteries at
the remote location. Using photonic technology, the PoF system eliminates the need to
run conductive copper wire into a high ground
potential rise (GPR) zone, and is a reliable and
convenient remote-powering solution.
The PoF system comprises two units: a
transmitter unit to produce the light energy,
and a receiver unit to convert that energy into
dc power that can run a full spectrum of RLH
fiber-optic links. The PoF transmitter unit is
a self-contained housing that may be 19/23
inches rack or wall-mounted and measures
3.5 in. x 13 in. x 11 in. It operates from a
24 Vdc to 56 Vdc power source, and LED
and LCD indicators located on the front panel
report system status and operation. The transmitter unit provides the light energy required
for the receiver unit over two fiber strands.
A third feedback fiber is used for systemdiganostics, and to control and monitor the
receiver unit.
The PoF receiver unit is a standard RLH
single card form factor (7 in. x 4 in. x 1 in.)
unit, and may be installed into any RLH fiberoptic link card housing. The receiver has two
fiber ST photovoltaic power receivers that
convert the laser light into electrical energy,
and a single fiber ST transmitter for monitoring
and safety shut-offs in the event of a break in
fiber continuity. The PoF receiver provides
24 Vdc up to 20 mA (0.5 W). For higher power
or voltage applications, multiple receivers can
be connected in series or parallel.
RLH Industries
(800) 877-1672
www.fiberopticlink.com
Industrial
Automation
Field computer
Raven Industries’ touch-screen-based
field computer, the Viper PRO, builds off of
RF Design
708RFD32.indd 51
the Raven Viper by adding a faster processor, more memory, and added features. Other
options include real-time weather information collected by sensors mounted on the
machine, wireless connectivity to allow for
Internet access including file transfer, text
messaging, and vehicle location maps. The
Viper PRO can also be used with an N-Tech
GreenSeeker variable-rate control system.
Another new feature is the Raven LastPass
3-D guidance. The LastPass 3-D guidance
program was initially introduced to the ag
market in the Raven Envizio and Envizio Plus
systems. Adding this feature allows the Viper
PRO to be used with the Raven SmarTrax
and QuickTrax assisted-steering systems.
The Viper PRO also has a 10.4-inch color
LCD touch-screen, an 800 MHz Intel processor, 256 MB of RAM and 2 GB internal
storage, and runs Windows XP OS. The computer also supports five-product flow control
(liquid, granular, NH3, planter and injection).
The unit includes an Ethernet connection for
future wireless communications. It is priced
at $4945.
Raven Industries
(800) 243-5435
www.ravenprecision.com
Medical Electronics
Implantable-grade radio chip
The ZL70101 transceiver chip from
Zarlink Semiconductor is an ultralowpower RF system-on-a-chip solution for use
in implanted medical devices, programmers,
and monitoring base stations. Building on
Zarlink’s MICS technology platform, the
chip delivers high data rates, low power
consumption and unique wake-up circuitry.
Previous home-health monitoring systems
required the patient to accurately position an
inductive wand over the implanted device. In
comparison, using MICS technology, patient
health and implanted device performance data
can be stored in the implanted medical device’s
memory and wirelessly transmitted to a base
station, without requiring patient intervention.
If a problem is detected, the physician will
schedule a patient follow-up visit where the
two-way RF link can be used to interrogate and
adjust implanted device performance.
During surgery to implant medical devices,
the longer operating range of the ZL70101
chip allows the base station/programmer to be
located outside the sterile environment. This
potentially shortens surgery times and reduces
healthcare costs, as programming equipment
does not have to be sterilized for use in the
operating room.
The ZL70101 transceiver also incorporates
a unique “wake-up” receiver that allows the
integrated circuit to operate in a 250 nA sleep
www.rfdesign.com
mode. Communication is then initiated using
a specially coded wake-up signal from the
base station transmitter. When in full operation the ZL70101 typically consumes 5 mA
of supply current.
The ZL70101 transceiver chip is available
as implantable-grade wire-bondable die or in
a 48-pin QFN package for the non-implanted
base station applications. The chip is fully
supported by a reference system and application development kit.
Zarlink Semiconductor
(613) 592-0200
www.zarlink.com
Microwave/
Millimeter-Wave
Components
WiMAX circulators
Renaissance Electronics’ series of carrier class
components that support
WiMAX base stations are
produced in three circulator designs. These devices
are high-reliability, extended-temperature devices with minimal
insertion loss. These parts replace older-style
crimp components with more reliable screw
top designs. The screw top design is better
suited for mass production with consistent test
results particularly at the higher 3.3 GHz to
3.8 GHz frequencies. They also cover the
entire WiMAX bandwidth with one device.
The 2.3 GHz to 2.5 GHz, and the 3.3 GHz
to 3.8 GHz devices conform to 0.75 in. dropin package applications while the 4.9 GHz to
5.9 GHz design supports 0.5 in. drop-in applications. Samples and test fixtures are available
from Renaissance at volume price points.
Renaissance Electronics
(978) 772-7774
www.rec-usa.com
Next-Generation
Wireless
ZigBee-ready module
Panasonic’s PAN4555 IEEE 802.15.4
ZigBee-ready module is fully
compatible with the
IEEE802.15.4 standard, and sized at
12.2 mm x 16.4
mm while delivering
the same functionality
as larger modules. The
unit is Panasonic‘s smallest ZigBee module.
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8/24/2007 10:18:56 AM
Based upon Freescale’s MC13213 ZigBee
chipset, Panasonic miniaturized the module
to be smaller than a penny while porting
all of the chipset’s functionality to the surface-mounted device pads. The extremely
low weight facilitates wireless connectivity in portable applications. Operating in the
2.4 GHz ISM band, the PAN4555 is pending FCC part 15 approval and is available
at Digi-Key, Arrow and other electronic
component distributors.
Panasonic
(201) 348-7000
www.panasonic.com
visit the company web site.
Labsphere
(603) 927-4266
www.labsphere.com
Passive
Components
DIN loads
Optoelectronics
Laser pump reflectors
With greater than 99% reflectance, Labsphere’s Spectralon laser pump reflectors
provide high levels of diffusion efficiency
for peak laser output power. The high efficiency, coupled with economical machined
part flexibility, is an ideal choice for laser
original equipment manufacturers. Lamp- and
diode-pumped lasers and dye lasers rely on
the efficiency of their laser pump reflectors
for optimum performance.
The more predictable beam profile resulting from the use of Spectralon has reduced
susceptibility to parasitic oscillations compared to metal-, ceramic-, or powder-based
reflectors. Spectralon’s long-term optical
stability ensures consistent and reliable laser
performance over time. Furthermore, these
reflectors can be economically fabricated into
a wide variety of shapes to meet any reflector
design. In-house machining allows samples
to be created quickly and easily, and modified
throughout the design, prototyping and testing
process. This manufacturing flexibility means
low- or high-volume quantities can be ordered
without affecting price.
Labsphere’s engineering staff has knowledge and experience in laser cavity design,
and often collaborates with customers to
develop custom laser pump reflector designs. To request a laser pump reflector
prototype, submit a specification drawing to
[email protected]. For more information on Labsphere products and services
52
708RFD32.indd 52
displayed at 24 frames per second.
Using Anchor Bay’s PReP and Progressive
Cadence Detection, the VP50 and ABT2010
are able to process interlaced and progressive signals correctly, recreating the original
24 frames that existed in the source from
the 60 frames that the content is encoded in.
The process results in an enhanced viewing
experience without the artifacts that are typically introduced by high-resolution displays,
such as judder, which manifests on the screen
as jerky camera pans. For more information or
to download the free software upgrade, visit
the company web site.
Anchor Bay Technologies
(866) 423-3836
www.anchorbaytech.com
Webcam processors
MECA’s family 7/16 DIN-male coaxial
loads support average power ratings of 1 W,
2 W, 5 W, 10 W, 35 W, 50 W and 100 W for
next-generation equipment deployments.
Their rugged construction and high performance (VSWR 1.10:1) across all wireless
bands from dc to 6 GHz makes them ideal
for base station and RF-lab applications. Peak
power for the family ranges from 250 W to
5000 W.
MECA
(866) 444-6322
www.e-meca.com
Signal Processing
Video processor software
Anchor Bay’s v1.04 “Film Technology”
free software upgrade for its DVDO iScan
VP50 video processor allows the system to
produce a 1080p-24 output for any standard- or
high-definition input, enabling an artifact-free,
theater-like viewing experience. The film
technology feature is available as a software
upgrade for the VP50 and is also slated for
integration into Anchor Bay’s forthcoming
ABT2010 video processing chip.
The upgrade is available to Anchor Bay’s
customers as a free download on its web
site, using either a serial or USB connection
from the PC to the VP50. With the upgrade,
the VP50 is the industry’s first video processor with the ability to take all standard- and
high-definition input signals and output
them at 1080p-24, 1920x1080 pixel frames
www.rfdesign.com
Vimicro’s VC0336 is a web camera processor targeting attachable web cameras and
laptop-embedded cameras. The processor
offers a vast array of functions for enhancing
web camera multimedia experiences, such as
high-definition video recording, audio recording, auto focus, and audio noise cancellation.
The camera fully supports Web 2.0 functionality. The VC0336 can stream video at 60 frames
per second (fps) with a resolution of 0.3 mega
pixels, 30 fps with a resolution of 1.3 mega
pixels, and 20 fps with a resolution of 2.0 mega
pixels. The VC0336 is also equipped with two
high-quality audio channels, which allow PC
cameras using the processor to sample two
streams of audio signals from two different
microphones, simultaneously. The processor
is fully compliant with Microsoft’s universal
audio architecture standard, and is integrated
with microphone array technology. As a result
of Vimicro’s high-fidelity audio and beamforming technology, the processor supports
extremely clear audio conversation regardless
of a web camera user’s environment.
Vimicro
(650) 966-1882
www.vimicro.com
Test &
Measurement
Cable and antenna analyzer
Anritsu’s site master cable and antenna
analyzer S311D and S312D weighs five
pounds, including the battery, and is suited for
cable and antenna land mobile radio (LMR)
applications. The S311D and S312D contain
the essential features needed for engineering
and troubleshooting in the field. This includes
frequency coverage up to 1.6 GHz, as well
as a rugged streamlined frame. The unit can
be configured to include a cable and antenna
analyzer, spectrum analyzer, interference
August 2007
8/24/2007 10:18:58 AM
analyzer, channel scanner, RF power meter,
AM/FM demodulation, transmission measurement, GPS receiver, RSSI monitor, and
more. The unit also uses frequency-domain
reflectometry (FDR) techniques for return
loss/VSWR, cable loss and distance-to-fault
(DTF) measurements so you can easily spot
performance faults. For more information or to
schedule a demonstration, contact Anritsu.
Anritsu
(800) 267-4878
www.anritsu.com
Synchronizing distribution board
Pentek’s model 6890 is a
2.2 GHz clock, synch and gate
distribution board for synchronizing multiple Pentek I/O modules.
The model 6890 facilitates sampling and timing for a wide range
of multichannel, high-speed dataacquisition, DSP and softwareradio applications. Configured as
a 6U VME board, the model 6890
synchronizes up to eight modules, each receiving a common
clock up to 2.2 GHz along with
timing signals for synchronizing,
triggering and gating functions.
The model 6890 currently supports Pentek’s model 6826 dual
2 GHz, 10-bit ADC converter
VME board. Developed specifically to address the critical timing needs of
synchronous multichannel data-acquisition
and DSP systems, the model 6890 board
simplifies system integration tasks. For example, when combined with eight model 6826
dual-channel 2 GHz, 10-bit ADC modules, the
resulting system provides 16 ADC converters
all sampling at 2 GHz, plus eight FPGAs with
a total of 352,000 programmable slices and
800,000 logic cells. Additional resources of
up to 8 GB of DDR memory and 128 Mb of
flash provide a complete real-time data acquisition and DSP environment for extremely
wideband signals.
The model 6826 features single- or dualchannel data acquisition at 2 Gsps with 10-bit
resolution using the Atmel AT84AS008 ADC
device. By accepting single-ended transformer
or dc-coupled inputs, the board preserves
signal integrity across a variety of analog
signal sources.
With this density equivalent of more
than 11 million system gates, the Xilinx
XC2VP100 Virtex-II Pro FPGA offers a
powerful signal-processing resource for the
formidable stream of data from the ADC
converters. Onboard logic first demultiplexes
the 2 GHz raw 10-bit ADC samples by a factor
of eight, producing 80-bit words at a reduced
rate of 250 MHz for successful delivery to the
FPGA. The FPGA then performs various
RF Design
708RFD32.indd 53
standard functions on the data, including
memory transfers, formatting, triggering,
gating and delivery to the FPDP and VMEbus interfaces. The FPGA also handles the
switched, serial-fabric VXS interface using the
on-chip RocketIO Gb serial transceivers.
To support high-bandwidth data capture,
the board includes several high-speed I/O
channels to move the raw data off-board for
storage or processing. Two or four channels
of FPDP-II data ports, operating at up to
400 MBps each, deliver processed and
demultiplexed data through legacy connections to other VME cards. In addition, the
board offers two serial switched-fabric VXS
connections, each running full-duplex at
1.25 GBps to support the Xilinx Aurora, serial
RapidIO and PCI Express protocols. LVDS
I/O is also available at either front- or rearpanel connections.
Pentek
(201) 818-5900
www.pentek.com
Precise probe station lift
Real
world inside
Test more scenarios with the Agilent 8960
Push the limits of what’s possible
in cellular design. With the Agilent
8960 test set, run the latest cellular
data applications through almost
any conceivable environment—
without generating scripts or
leaving your bench. Test video,
SMS/MMS, and other 3.5G services as you “drive” your design
through a bustling city, remote
mountain range, or winding tunnel.
Stay ahead, find the edge, move
it forward.
To see how the 8960 lets you test
your designs in any situation you
can imagine, go to www.agilent.
com/find/realworld. It’s cellular
testing at the edge of possibility.
J microTechnology’s LMS-45 adjustable
Z-axis stage option is an adaptable pedestal
adjustment for J microTechnology’s JR-2745
probe station, and standard with the JR-2746
probe station. With the new stage, once the
probe height is set for the device under test
(DUT), a device of any thickness can be
substituted repeatably and easily by adjusting
its height to match that position. Gradations
for 2° rotation and 0.01 mm height make
it extremely precise. Based on a precision,
rotary jack stand, the system adjusts the
height and rotational position of the DUT,
providing independent, lockable vertical and
rotary motions. The controls are intuitive and
easy to use. An added benefit is the additional
fine precision control of the chuck and the
DUT. This probe station system provides
a flexible microprobing environment that
engineers and scientists can use for electrical test and analytical evaluation of semiconductor devices, planar components, and
microwave assemblies. Prices for the LMS-45
option start at $2000.
J microTechnology
(503) 614-9509
www.jmicrotechnology.com
www.rfdesign.com
Agilent 8960 wireless
communication test set
Real-world, high speed
application test requires more:
• Data throughput testing
• Network services emulation
• Handovers and fading
• RF measurements
• Data analysis tools
u.s. 1-800-829-4444
canada 1-877-894-4414
www.agilent.com/find/realworld
© Agilent Technologies, Inc. 2007
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8/24/2007 10:19:00 AM
Error/noise performance test
system
With the addition of the G.703 interface
pod option, the Aeroflex FB100A bit error rate tester can now test a wide range of
standardized telecommunications interfaces
(from T1 at 1.544 Mbps to STS-3 and STM-1
at 155.52 Mbps). Adding the optional G.703
pod and optional noise-generation capabilities
to the FB100A with its automatic and accurate
carrier-to-noise-level calibration, gives users
a comprehensive test solution ideal for effectively characterizing error/noise performance.
The test pod is used to test a range of RF/IF
modems and other equipment carrying digital
data through standardized telecommunications
interfaces.
The FastBit G.703 interface pod has the
same form factor as other FB100A pods—the
HSSI pod and the telecom data interface pod.
It features a full range of standard instrument
tests and results, including automatic biterror-rate measurements (vs. carrier-to-noise)
and frequency-tunable noise that ranges from
5 MHz to 2.4 GHz with selectable noise
bandwidths. The pod uses a transmitter clock
internal or receiver with a transmit frequency
deviation of ±2000 ppm. The G.703 pod can
operate in comprehensive loop-back mode,
T1/E1 balanced and unbalanced mode, or
monitor mode. Unframed operation is available for the following interfaces: T1, E1, T3,
E3, E4, STS-1, STS-3, STM-1. A full range
of interfaces is available for PDH, SDH and
SONET systems up to 155 Mb/s.
The Aeroflex FastBit G.703 interface pod
is available. Pricing varies with data rates:
$3295 for E1/T1; $4395 for E3/T3; $4995 for
E4/STM-1/STS-3; and $10,995 for the entire
range of interfaces.
Aeroflex
(800) 843-1553
www.aeroflex.com
Handheld LAN analyzer
AirMagnet’s handheld analyzer 7.0 is
a handheld tool for proactively diagnosing
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708RFD32.indd 54
and troubleshooting WLANs. The latest
release introduces support for the 802.11g
wireless LAN protocol, giving organizations
insight into wireless performance on the network. In addition to the currently supported
802.11b adapters, the unit includes support
for the Summit Data Communications’ SDCCF20G 802.11g compact flash module with
integrated antennas, to recognize and report
on all 802.11g speeds and traffic information.
The analyzer also delivers the pre-802.11n
alarm, which protects against pre-standard
devices. Furthermore, the handheld analyzer
7.0 decodes and analyzes 802.11d information for those customers with devices implementing this standard. AirMagnet handheld
analyzer 7.0 is priced at $2995 per license.
Existing customers who have an active software support subscription are entitled to a
free upgrade. The Summit card is $150.
AirMagnet
(408) 400-0200
www.airmagnet.com
MIMO Wi-Fi tester
Azimuth System’s ADEPT-n MIMO test
platform is a scalable, single-box, pointto-multipoint tester that enables repeatable
performance, interoperability and functional
testing of 802.11n devices. The platform provides a flexible framework for semiconductor
vendors, device manufacturers and service providers to test client and access points, as well
as to conduct protocol testing using advanced
built-in capture capability. The ADEPT-n adds
802.11n testing capability with support for
4 x 4 MIMO paths and includes DIRECTOR
II, Azimuth’s second-generation test executive
software, featuring an intuitive user interface
and powerful new test-building capabilities
that accelerate testing and lower the overall
cost of test. The ADEPT-n facilitates product
design, design verification testing (DVT) and
quality assurance (QA) testing. This enables
design engineers to test and debug performance algorithms or analyze traffic protocol
across communication states; DVT engineers
www.rfdesign.com
to validate interoperability between MIMO
and/or SISO products; and QA managers to
run regression tests or benchmark tests using
standard scripts such as range and roaming,
or by running custom scripts. The ADEPT-n
is available in several engineering and QA
test configurations, from base engineering
solutions to full QA solutions, and is shipping
to early access partners. In addition, Azimuth
provides a testbed accessory, the MIMO static
channel simulator (STACSIM), which can help
facilitate disciplined MIMO testing.
Azimuth Systems
(978) 263-6610
www.azimuthsystems.com
Tx/Rx Technology
IEEE 802.15.4 speech audio
solution
Jennic has introduced a reference design
that enables speech to be transmitted over
an IEEE802.15.4 link using the company’s
JN5139 single-chip wireless microcontroller.
The hardware and software design solution is
aimed at applications from wireless headsets
to network-wide audio. The reference design
provides key benefits for audio applications,
such as low-power operation with instant
response and long standby battery life; secure
speech with 128-bit AES encryption; simple
development with no complex profiles, a range
of greater than 200 m, and more addressable
nodes than Bluetooth, making it suitable for
public address or broadcast applications.
Voice compression in the reference design is
implemented in software on Jennic’s standard
32-bit CPU. This single-chip solution delivers
the required processing power for ADPCM
compression as well as the protocol and application. The reference design also features a
hardware AES co-processor, making security
transparent to the processor and removing the
need for software support. RF channel agility
ensures good performance even in the presence of interference from wireless LAN. The
design features audio performance having
THD+noise better than –77 dB.
The software features of the audio reference
design include full-duplex, half-duplex (pushto-talk) or simplex configurations, ADPCM
compression giving 32 kbps per audio stream,
8 kHz/16 kHz switchable sample rate, volume
control, low-battery indicator, and 400 Hz test
tone if required. The design can also support
push-to-talk functionality. Available now, the
audio reference design provides hardware
schematics and board layouts, together with
example software code and a comprehensive
reference manual.
Jennic
(619) 223-2215
www.jennic.com
August 2007
8/24/2007 10:19:00 AM