Analog Devices Expands PLL Synthesizer Family; New Integer-N PLL and Fractional-N PLL offer industry's highest operational frequency and best phase noise performance.

Business Editors/High-Tech Writers

2004 International Microwave Symposium

Booth #847

FORT WORTH, Texas--(BUSINESS WIRE)--June 7, 2004

Analog Devices, Inc. (NYSE: ADI), a global leader in high-performance semiconductors for signal processing applications, today announced two new PLL (phase-locked loop) synthesizers that deliver industry-leading performance for the upconversion and downconversion of RF (radio frequency) signals in wireless applications. These new synthesizers are being displayed in the Analog Devices' booth #847.

The ADF4007 is a fixed frequency, low noise Integer-N PLL synthesizer that delivers the industry's highest frequency of operation at 7.5 GHz, eliminating frequency doublers in many high frequency systems, simplifying system architecture, and reducing cost. The ADF4007 is designed for cellular base stations and satellite radio link applications.

The ADF4154 is a Fractional-N PLL synthesizer and offers the best phase noise performance of -106dBc/Hz under GSM1800 conditions. This allows greater design flexibility in meeting the overall system noise targets. This PLL synthesizer comes with a fast locking feature that improves frequency and phase settling times and a programmable modulus that can accommodate multiple system reference frequencies. The ADF4154 is ideal for cellular base stations, private mobile radio, and instrumentation applications.

"Customers are continually seeking ways to improve performance while reducing system costs," said Christian Kermarrec, vice president, RF and wireless systems, Analog Devices, Inc. "Analog Devices has responded with the introduction of these two new PLL synthesizers which demonstrate our unrelenting commitment to innovation."

About the ADF4007

The ADF4007 frequency synthesizer is a fixed frequency (7.5GHz) Integer-N PLL synthesizer that has the capability of operating to 7.5GHz on the RF side and 120MHz at the PFD (phase frequency detector). It consists of a low noise digital PFD, a precision charge pump, and a divider/prescaler. The divider/ prescaler value can be set by two external control pins to one of four values (8, 16, 32, or 64). The reference divider is permanently set to 2, allowing an external reference input frequency of up to 240MHz.

About the ADF4154

The ADF4154 is a 500MHz to 4GHz fractional-N frequency synthesizer operating over the 2.7 to 3.3 Voltage Range. A separate Vp (Charge pump supply) allows extended tuning voltage. Features include programmable charge pump currents and programmable dual modulus at prescalar 4/5, 8/9 with digital lock detect and power-down mode. Software optimization of phase noise or spurious noise is facilitated. The ADF4154 is pin compatible with the ADF4153 and all ADI ADF41xx Integer-N PLLs.

Pricing and Availability

Both PLL synthesizers are available in production quantities now. The ADF4007 is offered in a 20-pin LFCSP (lead-frame chip-scale package) and is priced at $2.78 per unit for quantities of 10,000. The ADF4154 is offered in a 16-pin TSSOP and 20-pin LFCSP and is priced at $2.93 per unit in quantities of 10,000.

Analog Devices in Radio Frequency ICs

Using a unique combination of design skills, process technologies, and system understanding, Analog Devices has a broad portfolio of RF ICs, including complete chipsets and a full range of high-performance RF function blocks. ADI's extensive offerings include: direct digital synthesizers (DDS); phase-locked loop synthesizers (PLLs); detectors and logarithmic amplifiers; X-AMP(R) fixed and variable gain amplifiers (VGAs); TruPwr(TM) RF power detectors; mixers, modulators, and demodulators; integrated IF amplifiers; the Othello(R) family of single-chip transceivers, and X-PA(TM) power amplifier modules for cellular terminals.

About Analog Devices, Inc.

Analog Devices, Inc. is a leading manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. ADI is headquartered in Norwood, Massachusetts, and employs approximately 8,700 people worldwide. It has manufacturing facilities in Massachusetts, California, North Carolina, Ireland, and the Philippines. Analog Devices' common stock is listed on the New York Stock Exchange and ADI is included in the S&P 500 Index.

Othello, X-AMP are registered trademarks and X-PA and TruPwr are trademarks of Analog Devices, Inc. All other trademarks included herein are the property of their respective owners.