AD8315RF/IF射頻/中頻RFID的RF功率控制器IC規(guī)格書(shū)PDF中文資料

AD8315屬于RF/IF射頻/中頻RFID的RF功率控制器IC。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的AD8315RF 功率控制器 ICRF 功率控制 IC 器件可用于測(cè)量正在發(fā)射的信號(hào)的射頻功率，并向可編程放大器或類似設(shè)備提供相應(yīng)反饋信號(hào)，以保持所需的發(fā)射信號(hào)功率水平。

GENERAL DESCRIPTION

The AD8315 is a complete low cost subsystem for the precise control of RF power amplifiers operating in the frequency range 0.1 GHz to 2.5 GHz and over a typical dynamic range of 50 dB.

It is intended for use in cellular handsets and other battery operated wireless devices. The log amp technique provides a much wider measurement range and better accuracy than controllers using diode detectors. In particular, its temperature stability is excellent over a specified range of ?30°C to +85°C.

FEATURES

Complete RF detector/controller function

>50 dB range at 0.9 GHz (?49 dBm to +2 dBm, re 50 Ω)

Accurate scaling from 0.1 GHz to 2.5 GHz

Temperature-stable linear-in-dB response

Log slope of 23 mV/dB, intercept at ?60 dBm at 0.9 GHz

True integration function in control loop

Low power: 20 mW at 2.7 V, 38 mW at 5 V

Power-down to 10.8 μW

APPLICATIONS

Single, dual, and triple band mobile handset (GSM, DCS, EDGE)

Transmitter power control