AD8341 Datasheet PDF | Analog Devices

Analog Devices AD8341

The AD8341 vector modulator performs arbitrary amplitude and phase modulation of an RF signal. 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.

Part No.	AD8341
Datasheet	AD8341 Download
Manufacturer	Analog Devices
Description	1.5GHz to 2.4GHz RF Vector Modulator
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FEATURES

Cartesian amplitude and phase modulation 1.5 GHz to 2.4 GHz frequency range Continuous magnitude control of −4.5 dB to −34.5 dB Continuous phase control of 0° to 360° Output third-order intercept 17.5 dBm Output 1 dB compression point 8.5 dBm Output noise floor −150.5 dBm/Hz @ full gain Adjustable modulation bandwidth up to 230 MHz Fast output power disable 4.75 V to 5.25 V single-supply voltage 1.5 GHz to 2.4 GHz RF Vector Modulator AD8341 FUNCTIONAL BLOCK DIAGRAM VPRF QBBP QBBM VPS2 90° RFIP RFIM 0° 04700-001 RFOP RFOM CMOP IBBP IBBM DSOP Figure 1.

APPLICATIONS

RF PA linearization/RF predistortion Amplitude and phase modulation Variable attenuators and phase shifters CDMA2000, WCDMA, GSM/EDGE linear power amplifiers Smart antennas

GENERAL DESCRIPTION

Since the RF signal path is linear, the original modulation is preserved. 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.