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Analog Devices Adds Direct Conversion Receiver Solution for Next Generation Cellular and Broadband Wireless to RF Portfolio : – Demodulator and dual-channel digital gain trim amplifier reduce component count up to 60 percent.




NORWOOD, Mass. (PRWEB) June 16, 2008

With the ADL5380 demodulator, base station receivers can be designed for a variety of cellular and broadband wireless data systems and standards including CDMA, W-CDMA, TD-SCDMA, PHS, LTE, and WiMAX. The ADL5380 is also an ideal solution for defense and avionics equipment, including software-defined radio, due to the broad operating frequency range and wideband demodulation bandwidth. The AD8366 is optimized for signal gain control and accuracy providing 0.25dB fine step resolution AGC, with adjustable common mode and DC offset correction features for simplifying direct conversion receivers and easing subsequent driving of the final analog-to-digital converter (ADC).




“Analog Devices new demodulator and dual channel amplifier further expands ADI’s leadership in high-performance, highly integrated RF ICs,” said Peter Real, vice president, Analog Devices. “Providing utmost flexibility, integration and high linearity enables our customers to design and implement the most cost-effective wireless infrastructure direct conversion receivers for a variety of radio platforms, from single standard radios, such as WiMAX to more complex multi-standard radios, such as W-CDMA, LTE, and multi carrier GSM. By offering wide operating frequency range and signal bandwidth support, our customers are able to standardize on a solution across multiple platforms and projects.”

400 MHz to 6 GHz Quadrature Demodulator ADL5380

The ADL5380 covers the RF frequency range of 400 MHz to 6 GHz, offering the industry’s highest dynamic range with the highest linearity specifications, exemplified by second- and third-order intercept point specifications of 31 dBm and 60 dBm respectively at 2500 MHz. Combining best-in-class linearity specifications with the ability to handle the highest of interference signals and minimal noise contributions ensures the highest receiver dynamic range is maintained, under complex, realistic interfering situations, a critical requirement for direct conversion receivers. In addition to high linearity, the ADL5380 provides typical 3-4 dB of conversion gain, helping to minimize the gain requirements of the receiver front end.

500 MHz Matched Dual, Digital Gain Trim Amplifier AD8366

The AD8366 is the industry’s first dual-channel digitally controlled gain trim amplifier with 0.25 dB step over 4.5 to 20.5dB gain range. The AD8366 is ideally suited for analog I/Q quadrature ADC driving, maintaining excellent quadrature accuracy for direct conversion radio receivers. The fine gain control allows flexible and precise tuning of gain-critical to multi-standard and wideband radio receivers. Additionally the AD8366 features include adjustable output common mode for matching to ADC input ranges, and DC output offset correction loops to minimize demodulator DC offsets. The AD8366 is fully specified for direct conversion receiver designs capable of handling the widest of signal bandwidths with the lowest distortion. For example, the AD8366 supports the second and third harmonic distortion >88 dBc for 10 MHz signals at max gain.

Pricing and Availability

The ADL5380 demodulator is available in a 24-lead 4 mm x 4 mm LFCSP package and priced at $ 5.22 per unit in 1,000-unit quantities. The AD8366 DGTA is available in a 32-lead 5 mm x 5 mm LFCSP package and is priced at $ 6.49 per unit in 1,000-unit quantities. For more information, please visit http://www.analog.com/pr/ADL5380 and http://www.analog.com/pr/AD8366.

ADI 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 radio frequency (RF) ICs covering the entire RF signal chain from industry-leading high-performance RF function blocks to highly integrated single-chip transceiver solutions. The RF function blocks include direct digital synthesizers (DDS); phase-locked loop synthesizers (PLLs); TruPwr power detectors and logarithmic amplifiers; X-AMP

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