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atzensepp
 Post subject: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 4th, 2013, 15:09 
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Joined: July 26th, 2012, 12:26
Posts: 45
Location: Germany
The SMOOTH chip of a Seagate 7200.7 Barracuda has a 64 pin SMD package with a large ground or heat sink plane on the backside that
seems to be soldered onto the PCB:

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longlife
 Post subject: Re: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 19th, 2013, 23:01 
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Joined: December 9th, 2010, 2:59
Posts: 241
Location: kolkata
Is it always like that?
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BlackST
 Post subject: Re: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 20th, 2013, 2:15 
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Joined: July 18th, 2006, 3:05
Posts: 7476
Location: ITALY
What's strange in all this ?
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Matiw
 Post subject: Re: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 20th, 2013, 7:41 
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Joined: November 15th, 2012, 17:47
Posts: 226
Why is it called SMOOTH ? Is it an abbrevation ?
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Leo
 Post subject: Re: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 20th, 2013, 11:15 
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Joined: April 12th, 2006, 8:18
Posts: 32
Location: Chicago, USA
Matiw wrote:
Why is it called SMOOTH ? Is it an abbrevation ?

For me it was a kind of association with "smoke" and "pufff" :lol:
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fzabkar
 Post subject: Re: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 20th, 2013, 16:13 
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Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia
"Smoothdrive" is the name ST Microelectronics gave to its proprietary "voltage mode pseudo-sinusoidal" commutation algorithm.

http://pdf.datasheetcatalog.com/datashe ... Xyuswx.pdf

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Matiw
 Post subject: Re: A look under the SMOOTH chip of a 80 GB Seagate 7200.7
PostPosted: September 21st, 2013, 6:08 
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Joined: November 15th, 2012, 17:47
Posts: 226
Thanks a lot, fzabkar.

fzabkar wrote:
"Smoothdrive" is the name ST Microelectronics gave to its proprietary "voltage mode pseudo-sinusoidal" commutation algorithm.

http://pdf.datasheetcatalog.com/datashe ... Xyuswx.pdf
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