SC14428

SC14428 Baseband Processor for FP & PP DECT and WDCT ADVANCED INFORMATION March 2004 SC14428 Baseband Processor for FP & PP DECT and WDCT 1.0 General description .The SC14428 is a CMOS IC optimized to handle all the audio, signal and data processing needed within a DECT (1.9 GHz) or 2.4GHz ISM digital band base stations and handsets. A four channel ADPCM transcoder, a very low power 16 bit Codec and Analog Frontend are integrated. Direct connections towards PSTN or ISDN line interface are possible. The SC14428 has a programmable Generic DSP optimized for telecom applications. The SC14428 is designed to fit to any radio interface. A dedicated TDMA controller handles all physical layer slot formats and radio control. National Semiconductor’s standard CompactRISCTM CR16C microprocessor takes care of all the higher protocol stack. ■ Programmable 16 bits system bus interface with bus master and slave operation. ■ User programmable GENeric DSP with fixed telecom processing routines. ■ Four full duplex 32 kbits/sec ADPCM transcoder. ■ On-chip Dedicated Instruction Processor (DiP) for all TDMA based events, which supports DCT 1.152MHz, 0.576MHz and 0.288MHz data rates. ■ ISM band and DECT with 9.216, 10.368 and 13.824 MHz xtals. ■ Protected and unprotected full and double slot B-fields ■ Flexible 1.152 Mbit/sec three wire interface to radio front synthesizer. ■ One 16-bit linear CODEC ■ Selectable Fast Antenna Diversity operation or RSSI measurement with peak hold ADC. ■ Three inpu...