The Yokogawa VB2000 is a W-CDMA Digital I/Q Signal Generator (baseband generator) for mobile communication systems, featuring a 16.384 Mchip rate, -70 dBc adjacent channel power ratio, and less than 2% error vector magnitude. Thanks to the VB2000’s flexible design it meets system test, ARIB (Association of Radio Industries and Businesses), and 3GPP (3rd Generation Partnership Project) specifications. It can generate up- and down-link signals and allows direct coupling to an LSI through an offset voltage additional function and differential outputs. Features Real-time processing: Code multiplexing of a maximum of 4 channels Software processing: Code multiplexing of a maximum 512 channels Maximum chip rate of 16.384 M (20 MHz spread) Programmable spreading code generator Programmable roll-off filter Standardized encoding Mapping frame generator Output resolution of 14 bits Adjacent channel power ratio: About -70 dBc Error vector magnitude: 2% or less Variable differential offset voltage output for I (Inphase component) and Q (Quadrature component)