Re: [SI-LIST] : Output Buffer Need

Ritesh Kapahi (rkapahi@idt.com)
Mon, 19 Jul 1999 14:23:04 -0700

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Hi Andy
Quality Semiconductor Inc (now Integrated Device Technology) has got low =
skew fanout buffers for Ur need
You can find the same at this site http://www.idt.com/_CDROM/clock
The buffers also come with an option of builtin 25ohm series termination =
for reducing the noise on the board
There are five outputs for one input, If I remember the part is QS53805 =
or QS532805 for without and with series resistances respectively
Hope it helps
Ritesh Kapahi
Design Engineer
Systems Technology group
Integrated Devices Technology, Inc.
2975 Stender Way, M/S O-314
Santa Clara, CA 95054
Tel: (408)-654-6749
Fax: (408)-654-6747
Email: rkapahi@idt.com
<http://www.idt.com>

-----Original Message-----
From: BYERS ANDREW CLARK <byersa@maori.colorado.edu>
To: si-list@silab.eng.sun.com <si-list@silab.eng.sun.com>
Date: Monday, July 19, 1999 1:44 PM
Subject: [SI-LIST] : Output Buffer Need
=20
=20
Hello all,
I am currently searching far and wide for a clock fanout buffer
with the following characteristics:
=20
1) edge rates faster than 3-4 volts per nanosecond
2) 4 or 5 output fanout (1 input)
3) low pin-to-pin skew (less than 300 ps)
4) 3.3V or 5V Vcc
5) max freq around 100MHz
=20
These are the approximate specs I am looking for. The buffer will be =
used
on a test board environment, and we require a good, clean, fast edge =
rate. I
have seen several datasheets that come close, but either the edge =
rates are
not faster than 1V/ns or the part is not near production yet.=20
=20
Any pointers would be very helpful here!
=20
Thanks in advance,=20
Andy Byers=20
=20
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Andy Byers =20
University of Colorado at Boulder=20
email: byersa@maori.colorado.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
=20
=20
**** To unsubscribe from si-list: send e-mail to =
majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE =
si-list, for more help, put HELP. si-list archives are accessible at =
http://www.qsl.net/wb6tpu/si-list ****
=20

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Hi Andy
Quality = Semiconductor Inc=20 (now Integrated Device Technology) has got low skew fanout buffers for = Ur=20 need
You can find the same at this site http://www.idt.com/_CDROM/clock<= /A>
The buffers also come with an option of builtin = 25ohm series=20 termination for reducing the noise on the board
There are five outputs for one = input, If I=20 remember the part is QS53805 or QS532805 for without and with series = resistances=20 respectively
Hope it helps
Ritesh = Kapahi
Design=20 Engineer
Systems Technology group
Integrated Devices Technology,=20 Inc.
2975 Stender Way, M/S O-314
Santa Clara, CA 95054
Tel:=20 (408)-654-6749
Fax: (408)-654-6747
Email: rkapahi@idt.com
<http://www.idt.com>
 
-----Original = Message-----
From:=20 BYERS ANDREW CLARK <byersa@maori.colorado.edu&g= t;
To:=20 si-list@silab.eng.sun.com=20 <si-list@silab.eng.sun.com&g= t;
Date:=20 Monday, July 19, 1999 1:44 PM
Subject: [SI-LIST] : = Output=20 Buffer Need

Hello all,
I am currently = searching far=20 and wide for a clock fanout buffer
with the following=20 characteristics:

1) edge rates faster than 3-4 volts per=20 nanosecond
2) 4 or 5 output fanout (1 input)
3) low pin-to-pin = skew=20 (less than 300 ps)
4) 3.3V or 5V Vcc
5) max freq around=20 100MHz

These are the approximate specs I am looking for. The = buffer=20 will be used
on a test board environment, and we require a good, = clean,=20 fast edge rate. I
have seen several datasheets that come close, = but=20 either the edge rates are
not faster than 1V/ns or the part is = not near=20 production yet.

Any pointers would be very helpful=20 here!

Thanks in advance,
Andy Byers=20

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Andy=20 = Byers           &n= bsp;          =20
University of Colorado at Boulder
email: byersa@maori.colorado.edu~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


****=20 To unsubscribe from si-list: send e-mail to majordomo@silab.eng.sun.com.=20 In the BODY of message put: UNSUBSCRIBE si-list, for more help, put=20 HELP.  si-list archives are accessible at http://www.qsl.net/wb6tpu/si-l= ist=20 ****

------=_NextPart_000_0117_01BED1F2.36B3DAC0-- **** To unsubscribe from si-list: send e-mail to majordomo@silab.eng.sun.com. In the BODY of message put: UNSUBSCRIBE si-list, for more help, put HELP. si-list archives are accessible at http://www.qsl.net/wb6tpu/si-list ****