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To: Dan3 who wrote (157689)	2/4/2002 11:09:44 AM
From: wanna_bmw	Respond to of 186894

Dan, Re: "But these are DSP scale parts they are talking about here, a few mm2 - and 5GHZ DSPs are in use in production communication devices." I'm not sure I buy that, Dan. ALUs are not the same as DSPs. Besides, the achievement here was to run a piece of logic at 10GHz and 1.66V. wbmw

To: Dan3 who wrote (157689)	2/4/2002 12:31:49 PM
From: John Walliker	Read Replies (2) \| Respond to of 186894

Dan3, A $50 2.4GHZ cordless phone includes a 2.4GHZ ALU... No it doesn't. It will use a local oscillator tuned to something close to the transmission frequency and a mixer which converts this to a much lower frequency. This is then digitised and processed by a DSP which is typically clocked at a few tens of MHz. I could go into much more detail if you like... John