AD8340
FEATURES
Cartesian amplitude and phase modulation 700 MHz to 1.0 GHz frequency range Continuous magnitude control of
- 2 d B to
- 32 d B Continuous phase control of 0° to 360° Output third-order intercept 24 d Bm Output 1 d B pression point 11 d Bm Output noise floor
- 149 d Bm/Hz at full gain Adjustable modulation bandwidth up to 230 MHz Fast output power disable 4.75 V to 5.25 V single-supply voltage
APPLICATIONS
RF PA linearization/RF predistortion Amplitude and phase modulation Variable attenuators and phase shifters CDMA2000, GSM/EDGE linear power amplifiers Smart antennas
GENERAL DESCRIPTION
The AD8340 vector modulator performs arbitrary amplitude and phase modulation of an RF signal. Because the RF signal path is linear, the original modulation is preserved. 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
- 2 d B to less than
- 32 d B, and the phase...
