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April 2005, Issue 177

New Product News


INDUSTRY'S FIRST MONOLITHIC RF VGA

The ADL5330 is the industry’s first single-chip RF amplifier/attenuator (VGA) that operates at RF power levels for wireless infrastructure equipment. The ADL5330 is also the first monolithic VGA to provide broadband operation from 1 MHz to 3 GHz with a precision 60-dB linear-in-decibel gain-control range. These features, critical to demanding radio designs, have never before been available within a single IC.

Unlike conventional discrete solutions that require many external components, the single-chip ADL5330 integrates broadband amplifiers and attenuators, offering considerable savings in board area, component count, and solution cost as compared to discrete implementations. The precision linear-in-decibel control interface further simplifies and eases circuit design.

The ADL5330 provides 60-dB dynamic gain and attenuation (approximately 20 dB gain and –40 dB attenuation), an output power level of 22 dBm (1-dB compression point), an output third-order intercept (OIP3) of 31 dBm at 1 GHz, and a noise figure of 8 dB.

The ADL5330 is an ideal companion to Analog Devices’s I/Q modulators (AD8345, AD8346, and AD8349) and power detectors (AD8313, AD8314, and AD8362). Using the ADL5330 in conjunction with these devices can enable a complete transmit signal path. The ADL5330 single-chip VGA costs $4.98 per unit in 1,000-piece quantities.

Analog Devices, Inc.
www.analog.com