Electronic Products & Technology

Wideband RF quadrature modulator targets wireless infrastructure

EP&T Magazine   


CML Microsystems MX993W highly integrated wideband quadrature modulator provides 30MHz to 1GHz operation with excellent wideband noise performance across multiple modulations and bandwidths. Device provides translation from baseband I/Q signals to a modulated RF signal; the wideband inputs (up to 100MHz) can be driven single-ended or differentially for optimum performance. Product has two integrated and matched double-balanced mixers, driven from a buffered, quadrature, split local oscillator. The LO frequency is divided by either 2 or 4, with mixers forming an I/Q vector modulator with programmable gain stages (offering a desirable 30dB of gain control in 2.5dB step increments).



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