The Fujitsu MB86628 KeyWave™ II Quad AFE incorporates four complete analog front ends, optimised for Central Office (CO) ADSL industrial 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. Features • Integrates four complete full-rate ADSL analog front ends • Integrates all active circuits except transmit line drivers • Low power, 3.3V operation • 235 mW/port (G.dmt) • 200 mW/port (G.lite) • Integrated analog filters and 15-bit A/D & D/A converters • Interpolation filtering to reduce transmit channel data rate • 0 to +48 dB PGA range for each receive channel • Excellent SFDR and input noise performance • 0.35um CMOS technology with Triple Well • Industrial temperature range (-40 °C to +85 °C) Applications • High port-density Central Office ADSL modem systems • Programmable for ADSL derivatives (e.g. G.lite, splitterless, Universal ADSL) • Compatible with FDM and echo cancelling systems • Supports ADSL over ISDN |