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Description

The AD8314 is a complete low cost subsystem for the measurement and control of RF signals in the frequency range of 100 MHz to 2.7 GHz, with a typical dynamic range of 45 dB, intended for use in a wide variety of cellular handsets and other wireless devices. It provides a wider dynamic range and better accuracy than possible using discrete diode detectors. In particular, its temperature stability is excellent over the full operating range of −40°C to +85°C.

Features

1. Complete RF detector/controller function
2. Typical range :

(1) −58 dBV to −13 dBV
(2) −45 dBm to 0 dBm, re 50 Ω

3. Frequency response from 100 MHz to 2.7 GHz
4. Temperature-stable linear-in-dB response
5. Accurate to 2.7 GHz
6. Rapid response: 70 ns to a 10 dB step
7. Low power: 12 mW at 2.7 V
8. Power down to 20 μA

Applications

1. Cellular handsets (TDMA, CDMA , GSM)
2. RSSI and TSSI for wireless terminal devices
3. Transmitter power measurement and control