The HMC129LC4 is a general purpose double balanced MMIC Mixer which can be used as an up-converter or down-converter in the 4 to 8GHz band. The HMC129LC4 is ideally suited for applications where small size, no DC bias and consistent IC performance are required. This mixer can operate over a wide LO drive input of +9 to +15dBm. It performs equally well as a Bi-Phase modulator or demodulator. The HMC129LC4 eliminates the need for wire bonding, allowing use of surface mount manufacturing techniques.