AD8311
AD8311 is 50 dB GSM PA Controller manufactured by Analog Devices.
FEATURES plete RF detector/controller function >50 d B range at 0.9 GHz (- 48 d Bm to +3 d Bm re 50 Ω) Accurate scaling from 0.1 GHz to 2.5 GHz Temperature-stable linear-in-d B response Log slope of 23 m V/d B, intercept at
- 60 d Bm at 0.9 GHz True integration function in control loop Low power: 20 m W at 2.7 V
APPLICATIONS
Single, dual, and triple band mobile handset (GSM, DCS, EDGE)
Transmitter power control
GENERAL DESCRIPTION
The AD8311 is a plete 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 d B. It is intended for use in cellular handsets and other batteryoperated 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
- 40°C to +85°C.
50 d B GSM PA Controller
Its high sensitivity allows control...
