资 源 简 介
The AD6635 is a mulTImode, 8-channel, digital Receive SignalProcessor (RSP) capable of processing up to four WCDMAchannels. Each channel consists of four cascaded signal-processingelements: a frequency translator, two CIC decimaTIng filters,and a programmable coefficient-decimaTIng filter. Each inputport has input level threshold detecTIon circuitry for accommodatinglarge dynamic ranges or situations where gain rangingconverters are used. Quad 16-bit parallel output ports accommodatehigh data rate WBCDMA applications. On-chipinterpolating half-band filters can also be used to furtherincrease the output rate. In addition, each output port has adigital AGC for accommodating large dynamic ranges usingsmaller bit widths. The AGCs can maintain either signal level orclipping level, depending on their mode. Link port outputs areprovided to enable glueless interfaces to Analog Devices’TigerSHARC DSP core.
