Fujitsu MB86628 KeyWave™ II Quad AFE incorporates four complete analog front ends, optimised for Central Office (CO) ADSL modems. The device integrates high resolution analog to digital converters (ADC) and digital to analog converters (DAC), which combined with active filtering significantly reduces the requirements placed on external components. The MB86628 KeyWave™ II Quad AFE is ideal for cost, power and board area sensitive CO equipment.