Scalable Software Architectures
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Walter Katz
IBIS GND Editorial
March 4, 2016
VDD Relative is Clear in Pullup
and Power Clamp Curves
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Required:
Yes, if the [Voltage Range] keyword is not
present
•
Description:
Defines a voltage rail other than that defined
by the [Voltage Range] keyword as the reference voltage
for the [POWER Clamp] I-V data.
•
•
Other Notes:
The I-V table of the [Pullup] and the [POWER
Clamp] structures are “Vcc relative”, meaning that the
voltage values are referenced to the
Vcc pin
. (Note that,
under these keywords, all references to “Vcc” refer to the
voltage rail defined by the [Voltage Range], [Pullup
Reference], or [POWER Clamp Reference] keywords, as
appropriate.) The voltages in the data tables are derived
from the equation:
•
Vtable = Vcc – Voutput
VDD Relative is Clear in Pullup
and Power Clamp Curves
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•
Required:
Yes, if the [Voltage Range] keyword is not
present
•
Description:
Defines a power supply rail other than 0 V as
the reference voltage for the [GND Clamp] I-V data. If this
keyword is not present, the voltage data points in the [GND
Clamp] I-V table are referenced to 0 V.
Would be nice to add
•
Other Notes:
The I-V table of the [GND Clamp] structure is
“GND relative”, meaning that the voltage values are
referenced to the
GND pin
. (Note that, under these
keywords, all references to “GND” refer to the voltage rail
defined by the [GND Clamp Reference] keywords.) The
voltages in the data tables are derived from the equation:
•
Vtable = Voutput -GND
What is the Meaning of
Vtable = Vcc – Voutput
Vtable = Voutput –GND
•
Device Under Test (DUT, In Vitro)
–
Vtable = [Power Clamp Reference] – Voutput
–
Vtable = Voutput –[GND Clamp Reference]
•
Device In Action (DIA, In Vivo)
–
Vtable = (Power Clamp Reference Pin) – Voutput
–
Vtable = Voutput –(GND Clamp Reference Pin)
What is the Meaning of VinL and VinH?
•
Device Under Test (DUT, In Vitro)
–
Guaranteed Low
•
Voutput < VinL
–
Guaranteed High
•
Voutput > VinH
•
Device In Action (DIA, In Vivo)
–
Guaranteed Low
•
Voutput – ((GND Clamp Reference Pin)-[GND Clamp Reference]) < VinL
–
Guaranteed High
•
Voutput – ((GND Clamp Reference Pin)-[GND Clamp Reference]) > VinH
•
Example
–
If
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[GND Clamp Reference]=0.0V and [Power Clamp Reference] =5.0V
•
VinL=1.0V, VinH=4.0V
•
(GND Clamp Reference Pin]=10.0V and [Power Clamp Reference Pin] =20.0V
–
Then
•
Guaranteed Low
–
Voutput < 11.0
•
Guaranteed High
–
Voutput > 14.0
This content delves into the core concepts of scalability in software services, exploring vertical and horizontal scaling approaches, the difference between programs and services, basic service definitions, and the transition from a program to a service. It also covers network translations, service threading, concurrency, and popular web/HTTP server frameworks.
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Presentation Transcript
[Pulldown Reference] [GND Clamp Reference] Offset in [Pulldown] [Ground Clamp] Walter Katz IBIS GND Editorial March 4, 2016
VDD Relative is Clear in Pullup and Power Clamp Curves Keyword: [POWER Clamp Reference] Required: Yes, if the [Voltage Range] keyword is not present Description: Defines a voltage rail other than that defined by the [Voltage Range] keyword as the reference voltage for the [POWER Clamp] I-V data. Other Notes: The I-V table of the [Pullup] and the [POWER Clamp] structures are Vcc relative , meaning that the voltage values are referenced to the Vcc pin. (Note that, under these keywords, all references to Vcc refer to the voltage rail defined by the [Voltage Range], [Pullup Reference], or [POWER Clamp Reference] keywords, as appropriate.) The voltages in the data tables are derived from the equation: Vtable = Vcc Voutput
VDD Relative is Clear in Pullup and Power Clamp Curves Keyword: [GND Clamp Reference] Required: Yes, if the [Voltage Range] keyword is not present Description: Defines a power supply rail other than 0 V as the reference voltage for the [GND Clamp] I-V data. If this keyword is not present, the voltage data points in the [GND Clamp] I-V table are referenced to 0 V. Would be nice to add Other Notes: The I-V table of the [GND Clamp] structure is GND relative , meaning that the voltage values are referenced to the GND pin. (Note that, under these keywords, all references to GND refer to the voltage rail defined by the [GND Clamp Reference] keywords.) The voltages in the data tables are derived from the equation: Vtable = Voutput -GND
What is the Meaning of Vtable = Vcc Voutput Vtable = Voutput GND Device Under Test (DUT, In Vitro) Vtable = [Power Clamp Reference] Voutput Vtable = Voutput [GND Clamp Reference] Device In Action (DIA, In Vivo) Vtable = (Power Clamp Reference Pin) Voutput Vtable = Voutput (GND Clamp Reference Pin)
What is the Meaning of VinL and VinH? Device Under Test (DUT, In Vitro) Guaranteed Low Voutput < VinL Guaranteed High Voutput > VinH Device In Action (DIA, In Vivo) Guaranteed Low Voutput ((GND Clamp Reference Pin)-[GND Clamp Reference]) < VinL Guaranteed High Voutput ((GND Clamp Reference Pin)-[GND Clamp Reference]) > VinH Example If [GND Clamp Reference]=0.0V and [Power Clamp Reference] =5.0V VinL=1.0V, VinH=4.0V (GND Clamp Reference Pin]=10.0V and [Power Clamp Reference Pin] =20.0V Then Guaranteed Low Voutput < 11.0 Guaranteed High Voutput > 14.0
