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  Norwood, MA - The AD8319, the latest addition to Analog Devices’ family of power detectors/controllers, accurately measures RF (radio frequency) signals over the industry’s widest frequency range of 1 MHz to 10 GHz, and delivers an exceptional combination of low power, small packaging and fast output response time. Offered at the lowest price point in the AD831x family, the AD8319 allows wireless designers to trade off dynamic range for system cost. The device supports all cellular standards (GSM, CDMA, W-CDMA and TD-SCDMA), broadband wireless standards (WiFi, WiMAX, WiBro), and proprietary systems that operate in a variety of frequency bands.

Accuracy, Temperature Stability
A demodulating log amp, the AD8319 provides precise, temperature-stable performance over the full range of –40 degrees C to +85 degrees C, and offers accurate RF measurement of better than +/–1 dB over a dynamic range of 40 dB. The device can also be used as a power controller when its outputs are used to adjust a PA (power amplifier) or a VGA (variable-gain amplifier), such as ADI’s ADL5330. For radar applications, the device has an output response time of eight nanoseconds, enabling RF burst detection to beyond 125 MHz.

Low Power, Small Size
The AD8319 operates over a supply voltage range of 3 V to 5.5 V, consuming only 20 mA; power consumption is reduced to less than 1 mW when the device is disabled. Its low-power consumption and miniature single-chip 2 mm × 3 mm package makes the device ideally suited for portable communications applications.

ADI’s Communications ICs
The AD8319 is a member of ADI’s proven family of RF power detectors and controllers, which includes the AD8318 and AD8317. ADI’s RF power detectors and controllers work well with ADI’s mixers, modulators, demodulators, VGAs, gain blocks, PLLs (phase locked loops), frequency synthesizers, mixed-signal ICs and converters.

Availability and Pricing
The AD8319 is sampling now, with volume production scheduled for November 2005. It is priced at $2.99 per unit in 1,000-piece quantities and is packaged in a space-saving 2 mm × 3 mm, 8-lead LFCSP.

Miércoles, 24 Agosto, 2005 - 09:01
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