CML Unveils RF Quadrature Modulator at Electronica’08
CML Microcircuits, a leading innovator and provider of low-power semiconductors for global wireless and wireline communications markets, unveils a new I/Q modulator at the Electronica exhibition in Munich, Germany, adding to its family of RF integrated circuits.
(PressZoom) - The new CMX993 is a highly integrated, general purpose, RF quadrature modulator, offering 100MHz to 1GHz operation and excellent wide-band noise performance. Additional features include gain control and uncommitted differential amplifiers.
Targeted to meet the challenging requirements of wireless data ( digital TV, CATV modulators, ISM transmitters, Wireless LAN, WLL ) and two-way radio systems ( APCO P25 ), the product’s I/Q architecture supports a wide range of modulation types. Various integrated, selectable functions are offered, to maintain performance across multiple modulations and bandwidths.
The quadrature modulator provides translation from baseband I/Q signals to a modulated RF signal. The wideband inputs can be driven single-ended or differentially for optimum performance.
The device offers 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 the mixers forming an I/Q vector modulator with programmable gain stages, offering 30dB of gain control in 2.5dB steps.
A digital control interface, C-BUS ( SPI™ compatible interface ), allows gain control as well as the power management of individual internal blocks for optimum system performance. The C-BUS interface operates from its own power supply, enabling the CMX993 to be interfaced to baseband devices of differing voltages.
Officially launched at the Electronica exhibition held in Munich, Germany ( CML - stand A5-324 ), the CMX993 is available now, operates at 3.3V ( 1.8V I/O ) and comes in a 48-pin VQFN package. An evaluation kit ( EV9930 ) is available.
Ends.
Submitted by
Mark Channen
Release Date
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