Hi
Could anyone introduce me modem chipset which is 300 or 1200 and is buyable on the internet? I have known some chips but cannot find them in digikey and allied etc. For example, MC145442 and MC145407 but I cannot find where to buy. I also want to know the approxmate price.
Thanks!
Pay scrupulous attention to the power supply decoupling in the data sheet, as well as decoupling the data lines. Check the chips that you get, for noise when SQT is asserted. If you get noise, they are defective.
Leon
-- Leon Heller, G1HSM http://www.geocities.com/leon_heller http://www.kasamba.com/viewExpert.asp?conMemID=105725&Catid=1111&banID=2100
snipped-for-privacy@yahoo.com.hk (derek) wrote in news: snipped-for-privacy@posting.google.com:
Texas Instruments TMS99532 - $2.50ea at B.G. Micro
-- Sooner dot boomer at gbronline dot com
The 7910 family?
Wim
The 7911 was better, and both were also fussy about supply and control signal decoupling.
They haven't been made for yonks.
Leon
CML Micro offers a whole line of chips, though they're not the most convenient to buy on the 'net. They've been pretty good about providing samples, though. I'm currently using their CMX860 for Bell 202.
Scott
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