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New Analog Devices PLL Synthesizers Deliver Utmost Flexibility
and Phase Noise Performance
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January 5, 2012 Press Release
January 5, 2012
 NORWOOD,
Mass.--( BUSINESS WIRE)--
Analog Devices, Inc. (ADI), a global leader in high-performance
semiconductors for signal-processing applications and leading provider of RF ICs (radio frequency integrated
circuits), today announced the release of two new PLL synthesizer that allows utmost flexibility and phase noise
performance. The
ADF4151 and
ADF4196 PLL synthesizers ease design in a variety of
applications including communications infrastructure base-stations, pulse and Doppler radar applications, test and
instrumentation equipment, microwave point-to-point systems, PMR (professional mobile radio), VSATs (very small
aperture terminals) and aerospace systems.
With an RF bandwidth of 3.5 GHz, the ADF4151
allows implementation of a Fractional-N or Integer-N PLL synthesizer. It consists of a low noise digital phase
frequency detector (PFD), a precision charge pump, and a programmable reference divider and is pin-and
software-compatible with ADI’s widely-used
ADF4350 4.4 GHz PLL. When these two PLLs are used together, the ADF4151 facilitates the use of an external
voltage controlled oscillator (VCO) and greatly improves phase noise without significant board revisions.
ADF4151 Fractional-N/Integer-N PLL Synthesizer Key Features:
- 3 to 3.6 V power supply
- 1.8 V logic compatibility
- Separate charge pump supply allows extended tuning voltage (up to 5 V) in 3 V systems
- Programmable dual-modulus prescaler of 4/5 or 8/9
- Programmable RF output phase
- 3-wire serial interface
The ADF4196 is an ultra-fast settling 6 GHz
fractional-N PLL that has been specifically designed to meet the GSM/EDGE lock time requirements for
communications infrastructure and pulse Doppler radar applications. When used in conjunction with an external loop
filter and VCO, the ADF4196 PLL can achieve lock times of less than 5 µs. It consists of a low noise, digital
phase frequency detector (PFD) and a precision differential charge pump.
ADF4196 Fractional-N PLL
Synthesizer Key Features:
- Frequency hop across GSM band in 5 µs with phase settled within 20 µs
- 1◦ rms phase error at 4 GHz RF output
- Digitally programmable output phase
- 3-wire serial interface
- On-chip, low noise differential amplifier
- Phase noise figure of merit: 216 dBc/Hz
The ADF4151 and ADF4196 PLLs are supported by a new version of
ADIsimPLL,™
a comprehensive PLL synthesizer design and simulation tool. Also announced today, ADIsimPLL Version 3.41 adds
support for ADI’s latest PLLs and includes several functionality enhancements. The free development tool can be
downloaded at
www.analog.com/adisimpll.
Pricing, Availability and Complementary Products
The ADF4151 PLL synthesizer is well-suited
to work with ADI’s
ADL5801 and
ADL5802 RF mixers and is complementary to the
ADF4350 and
ADF4351 PLL synthesizers. The ADF4196 works well with the
ADL5375 modulator and is complementary to the
ADF4193 PLL synthesizer.
ADI’s RF IC Portfolio Covers Entire RF Signal Chain
Using a unique combination of design skills, system understanding and process technologies, Analog
Devices offers the broadest portfolio of RF ICs covering the entire RF signal chain from industry-leading
high-performance RF function blocks to highly integrated short-range and 3G/4G single-chip transceiver solutions.
The RF function blocks include PLL, integrated PLL/VCO and DDS synthesizers; TruPwr™ RMS power detectors and
logarithmic amplifiers; variable gain amplifiers; power amplifiers, low noise amplifiers and other amplifiers; RF
mixers and direct conversion modulator and demodulator products. These products are supported by a wide range of
design resources to ease the development of RF systems, including free design tools, Circuits from the Lab™
reference circuits and the EngineerZone™ technical forums. For more information, visit
http://www.analog.com/rf.
About Analog Devices
Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the
longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world
leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers,
representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts,
with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New
York Stock Exchange under the ticker “ADI” and is included in the S&P 500 Index.
Subscribe to
ADI’s News Feed.
Follow ADI on Twitter at
http://www.twitter.com/ADI_News.
Contacts
Analog Devices, Inc.
Colleen Cronin, 781-937-1622
Colleen.cronin@analog.com
Date Posted 1/5/2012
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