Broadband Demodulator combines 5 devices, 3 RF functions.

Press Release Summary:

Combining 5 devices and 3 RF functions in one SMT chip, ADRF6850 operates over 100-1,000 MHz range and supports narrow and wideband signal modes up to 250 MHz. It conserves board space and simplifies development by integrating 60 dB variable gain amplifier, fractional-N PLL synthesizer with VCO, and 2 baseband ADC drivers in 8 x 8 mm LFCSP package. RF performance is optimized with input IP3 of 22.5 dBm, input compression point of 12 dB, and noise figure of 11 dB.

Original Press Release:

Analog Devices Adds New Highly Integrated Demodulator for Broadband Communication Designs to its RF/Microwave Product Portfolio

- ADI's ADRF6850 demodulator saves board space, reduces cost, and shortens design time with unparalleled integration and performance in a small package.

NORWOOD, Mass.-- Analog Devices, Inc. (ADI), a world-leader in high-performance semiconductors for signal processing applications and RF ICs (radio frequency integrated circuits), today introduced a new highly integrated demodulator for broadband applications, such as cellular base stations, satellite communications, point-to-point (PtP) radios and defense systems. ADI's new ADRF6850 demodulator expands ADI's RF/microwave product portfolio and offers the highest level of integration and functionality by combining five devices and three RF functions into one small-footprint, surface-mount chip.

Unlike discrete implementations that use a multi-chip approach, ADI's single-chip ADRF6850 demodulator saves considerable board space, reduces cost, and simplifies development by integrating a 60 dB VGA (variable gain amplifier), a fractional-N PLL (phase locked loop) synthesizer with VCO (voltage controlled oscillator) and two baseband ADC drivers all in an 8 mm x 8 mm LFCSP package. A complete data sheet and samples are available at

The ADRF6850 operates over a broad frequency range from 100 MHz to 1000 MHz and supports narrow band and wideband signal modes up to 250MHz. The device offers best-in-class RF performance with an input IP3 (third order intercept) of 22.5 dBm, P1dB (input compression point) of 12 dB and a noise figure of 11 dB. Furthermore, the ADRF6850 also supports the user selected SPI/I2C serial interface and is fully supported by the latest version of ADI's popular PLL design tool, ADIsimPLL.

Availability, Pricing and Complementary Products
The ADRF6850 is in production now and is available for $7.50 per unit in 1,000-unit quantities. It is the companion device to ADI's recently released ADRF6750 modulator.

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 discrete RF function blocks to highly-integrated multi-functional single-chip RF solutions. ADI's RF portfolio includes TruPwr(TM) RMS power detectors and logarithmic amplifiers; PLL and DDS synthesizers; RF prescalers; VGAs; ADC drivers, gain blocks, LNAs and other RF amplifiers; RF mixers; direct conversion modulator and demodulator products; integrated transceivers, transmitters and receivers and more. These products are supported by a wide range of free design tools, evaluation boards and other design resources to ease the development of RF systems. For more information, visit:

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. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, 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.

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Analog Devices, Inc.
Colleen Cronin, 781-937-1622

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