DC2091A, Demo Board for the LTC5599, 30MHz to 1300MHz Low Power Direct Quadrature Modulator

DC2091A, Demonstration Board using LTC5599, 30MHz to 1300MHz Low Power Direct Quadrature Modulator. The balanced I and Q baseband input ports can be either AC or DC-coupled to a source with a common mode voltage level of about 1.4V. Fixed LC networks on the LO and RF ports cover a continuous 90MHz to 1300MHz range. The SPI interface controls the supply current, modulator gain and allows optimization of the LO carrier feedthrough and side-band suppression