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Technology Stocks : The New Qualcomm - a S&P500 company -- Ignore unavailable to you. Want to Upgrade?

To: quidditch who wrote (6111)	2/2/2000 2:07:00 PM
From: slacker711	Read Replies (1) \| Respond to of 13582

I dont think that the article said that an ASIC could be completely replaced by a DSP.... ASICs versus DSP When attempting to implement chip rate and symbol rate processing in a 3G-radio design (Figure 1), engineers must make an important decision. They must determine whether to use a digital signal processor (DSP), an application-specific IC (ASIC), or a combination of products to implement these processing techniques in their next-generation wireless designs. Figure 1: Software radio chain for a W-CDMA base station design. Chip rate processing In traditional base station designs, chip rate processing is handled by an application-specific IC (ASIC) as opposed to a digital signal processor (DSP). As designers begin developing 3G products, they are keeping this trend alive. The primary function of the chip rate processor is de-spreading the received signal by correlating the input sequence with a known spreading sequence. Although correlations are optimized in a DSP, the rates needed for spread spectrum are currently beyond capabilities a DSP can offer. Therefore, an ASIC solution still appears to be solution for implementing chip rate processing functionality in 3G designs. They go on to talk about how other functions of the base-station can be incorporated into DSP's. I think that this is the approach that TXN is taking....they couldnt do implement 3G with just a DSP, so they added in some ASIC functionality (presumably to do the "chip-rate processing"). Hope I understand this correctly.... Slacker