NORWOOD, Mass. -- (Business Wire)
Analog
Devices, Inc. today introduced a phased-locked loop (PLL)
synthesizer with integrated voltage-controlled oscillator (VCO) that
allows mobile network operators to improve cellular base station
performance and the quality of wireless service. The new ADF4355 PLL
with VCO synthesizer operates up to 6.8-GHz, a frequency band that
allows significant margin to industry’s current carrier frequencies.
When designed into cellular base stations, the new PLL synthesizer’s
higher frequency and lower VCO phase noise enables wireless service
providers to increase call throughput and cell phone coverage and
service more users per base station at no significant additional cost.
The device’s higher frequency band offers similar throughput advances
for makers of point-to-point/point-to-multipoint microwave links,
satellite/VSAT systems, industrial and test and measurement systems as
well as other wireless equipment.
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In frequency generation applications for wireless and industrial
applications, where VCO phase-noise performance plays a pivotal role in
determining the overall system performance of the RF signal transmission
and receive, the choice of PLL synthesizer for the RF local oscillator
(LO) is a key system design consideration. ADI’s ADF4355 wideband PLLVCO
synthesizer meets the exacting VCO phase noise requirements for
frequency generation applications while delivering a cost-competitive
alternative to other PLL devices in a smallest-in-class 5mm × 5mm LFCSP
package. This combination of features allows designers to reduce risk by
ensuring the lowest possible phase noise, extending frequency coverage,
shrinking footprint and increasing operating range across temperature.
The ADF4355 PLL synthesizer’s integrated VCO has an output frequency
ranging from 3.4 to 6.8 GHz. The VCO frequency is connected to divide by
1, 2, 4, 8, 16, 32, or 64 circuits, which allows the designer to
generate RF output frequencies as low as 54 MHz, thereby allowing the
ADF4355 to cover a continuous range from 54 to 6800MHz with no gaps. For
applications that require noise isolation, the RF output stage features
a mute function that is both pin and software controllable. The ADF4355
can operate in either fractional-N or integer-N mode and with 38-bit
modulus resolution, offers exact mode frequency operation, independent
of reference input frequency.
Control of all on-chip registers is through a simple 3-wire interface.
The ADF4355 operates with analog and digital power supplies ranging from
3.15 to 3.45 V, with charge pump and VCO supplies from 4.75 to 5.25 V.
The ADF4355 also contains hardware and software power-down modes.
ADF4355 Wideband, Ultra-Low-Noise Synthesizer Key Features
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54-MHz to 6.8-GHz continuous frequency range
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Ultra-low VCO phase noise: -144dBc/Hz @ 1MHz offset at 1.7GHz (typical)
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High-resolution 38-bit modulus
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Operates from -40C to +85C without re-programming.
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Dual differential outputs
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Supported by ADIsimPLL circuit design and virtual evaluation software
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Integrated rms jitter: ~150fs
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Pricing and Availability |
Product |
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| Sample Availability |
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| Full Production |
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| Price Each per 1,000 |
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| Packaging |
ADF4355
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Now
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Now
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$20.44
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32-lead
5mm × 5mm LFCSP package
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EV-ADF4355SD1Z
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Now
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1 unit @ $300
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EVAL-SDP-CS1Z (Required SDP-S Controller Board – Interface
to EV- ADF4355SD1Z)
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Now
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1 unit @ $49
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About Analog Devices
Analog Devices (NASDAQ: ADI) designs and manufactures semiconductor
products and solutions. We enable our customers to interpret the world
around us by intelligently bridging the physical and digital with
unmatched technologies that sense, measure and connect. Visit http://www.analog.com.
EngineerZone is a registered trademark of Analog Devices, Inc.
Follow ADI on Twitter at http://www.twitter.com/ADI_News
Subscribe to Analog Dialogue, ADI’s monthly technical journal,
at: http://www.analog.com/library/analogdialogue/
View source version on businesswire.com: http://www.businesswire.com/news/home/20160125005011/en/
Contacts:
Analog Devices, Inc.
Beth Desjardins, 978-614-9599
beth.desjardins@analog.com
or
Porter
Novelli
Andrew MacLellan, 617-897-8270
andrew.maclellan@porternovelli.com
Source: Analog Devices, Inc.
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