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Description:1.5 to 2.4 GHz RF vector modulator
Manufacturer:Analog Devices
Package:Evaluation board
Datasheet:PDF (556K).
Click here to download *)

The AD8341 vector modulator performs arbitrar y amplitude and phase modulation of an RF signal. Since the RF signal path is linear, the original modulation is preser ved. This part can be used as a general-purpose RF modulator, a variable attenuator/phase shifter, or a remodulator. The amplitude can be controlled from a maximum of -4.5 dB to less than -34.5 dB, and the phase can be shifted continuously over the entire 360 range. For maximum gain, the AD8341 delivers an OP1dB of 8.5 dBm, an OIP3 of 17.5 dBm, and an output noise floor of -150.5 dBm/Hz, independent of phase. It operates over a frequency range of 1.5 GHz to 2.4 GHz. The baseband inputs in Cartesian I and Q format control the amplitude and phase modulation imposed on the RF input signal. Both I and Q inputs are dc-coupled with a 500 mV differential full-scale range. The maximum modulation bandwidth is 230 MHz, which can be reduced by adding external capacitors to limit the noise bandwidth on the control lines.

Click here to download AD8341-EVAL Datasheet
Click here to download AD8341-EVAL Datasheet
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