Intel 315889-002 manual VTT Zf Measurement Method, Results

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Z(f) Constant Output Impedance Design

Figure A-4. Time Domain Responses and Corresponding Fourier Spectra of Voltage, Current and Impedance

A.3 VTT Z(f) Measurement Method

An electronic load that has the capability to change the repetition rate up to 3 MHz of the load step is needed. The Intel LGA771/775V2 VTT by Cascade Systems Design, will meet this requirement. By monitoring the VTT current and voltage waveforms with an oscilloscope capable of executing an FFT on these waveforms, the platform impedance is found. A complete impedance profile is then generated by sweeping the input waveform frequency across the range of interest. In order to automate the data collection process, Intel has modified the VTT control software and a GPIB controlled oscilloscope is used along with software supplied with the VTT.

These utilities allow the user to automatically display and collect the magnitude and phase of the motherboard impedance in a Microsoft Excel* compatible data file. The total time it takes to extract the impedance profile using this method is about 1-2 minutes. This technique is very useful in investigating and assuring MB performance based on its stack up.

For more information on the measurement method and theory, see the paper Microprocessor Platform Impedance Characterization using VTT Tools by K. Aygun, S. Chickamenahalli, K. Eilert, M. Hill, K. Radhakrishnan and E. Stanford published at the IEEE Applied Power Electronics Conference, 2005.

A.4 Results

As an example, Figure A-5shows the test platform with 10 560 μF Al-Poly bulk capacitors and 10 10 μF and 8 22 μF high frequency MLCC capacitors in the socket cavity. Figure A-6is the measured impedance profile of the board shown in Figure A-5as capacitors are removed. The VID setting for this measurement was 1.35 V and load

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Contents Design Guidelines 315889-002 Contents Tables Figures315889-002 Rev # Description Rev. Date Revision HistoryRevision Project Document State Projects Covered 315889-002 VRM/EVRD 11.0 Supported Platforms and Processors ApplicationsIntroduction and Terminology Guideline Categories Guideline CategoriesVoltage and Current Required Processor VID signal implementationOutput Voltage Requirements Time Duration s Icc Guidelines Load Line Definitions RequiredCC Tolerance / Die Load Line Units Select VIDSelect, LL1, LL0 Codes Sheet 1Load Line / Processors Select Mode Voltage Tolerance RequiredVIDSelect, LL1, LL0 Codes Sheet 2 Impedance vs. Frequency Expected Processor VCC Overshoot RequiredVR BW Impedance ZLL Measurement Parameter Limits Processor Power Sequencing RequiredStability Required Startup Sequence Timing Parameters Sheet 1 Timing Min Default Max RemarksStartup Sequence Timing Parameters Sheet 2 Dynamic Voltage Identification D-VIDProcessor Transition States Polymer Overshoot at Turn-On or Turn-Off RequiredOutput Filter Capacitance Required PWL 560µF/2.5V/20%/ Oscon 22µF/6.3V/20%/ X5R /1206 Mlcc CoefficientQuantity Value / Description Motherboard Socket & Package Quantity Value Tolerance TemperatureShut-Down Response Required Output Enable Outen Required Control SignalsOuten Specifications VID 60 Specifications400 mV 200 mV 100 mV 50 mV 25 mV 12.5 mV Extended VR 10 Voltage Identification VID TableVR 11.0 Voltage Identification VID Table Differential Remote Sense VOSEN+LGA VID Bit Mapping LL0, LL1, VIDSelect SpecificationsLoad Line Select LL0, LL1, VIDSelect Control Signals Load Transient Effects on Input Current Input Voltage and CurrentInput Voltages Expected Input Voltage and Current Over-Current Protection OCP Expected Processor Voltage Output ProtectionOver-Voltage Protection OVP Expected Processor Voltage Output Protection VRReady Specifications Output IndicatorsVRhot# Specifications Voltage Regulator Ready VRReady RequiredVRMpres# Specifications Load Indicator Output LoadCurrentVRMID# Specifications VRM Present VRMpres# ExpectedVRM 11.0 and Platform Present Detection 315889-002 VRM Tyco/Elcon Connector Keying VRM Connector ExpectedVRM 11.0 Connector Part Number and Vendor Name VRM Mechanical GuidelinesName Type Description VRM 11.0 Connector Pin DescriptionsVRM 11.0 Pin Assignments Mechanical Dimensions ProposedVRM 11.0 Module and Connector VRM Board Temperature Required Operating Temperature ProposedNon-Operating Temperature Proposed Environmental ConditionsAltitude Proposed Safety ProposedElectrostatic Discharge Proposed Shock and Vibration ProposedLead Free Pb Free Manufacturing ConsiderationsManufacturing Considerations Introduction Proposed Zf Constant Output Impedance DesignFigure A-2. Zf Network Plot with 1.25 mΩ Load Line Zf Constant Output Impedance Design = FFT V t FFT I t Voltage Transient Tool VTT Zf TheoryResults VTT Zf Measurement MethodZf Constant Output Impedance Design 10uF 22uF Output Decoupling Design Procedure

315889-002 specifications

The Intel 315889-002 is a highly regarded processor that has made significant contributions to the computing landscape. As part of Intel's dedicated line of CPUs, this model is engineered to deliver robust performance and efficiency for a range of applications, from personal computing to enterprise solutions. Features of the Intel 315889-002 include its multi-core architecture, which allows for better multitasking capabilities. With multiple cores working simultaneously, users can run multiple applications without experiencing noticeable lag, leading to a smoother overall experience.

One of the standout technologies incorporated in the Intel 315889-002 is Intel Turbo Boost Technology. This technology intelligently increases the processor's clock speed to enhance performance when required while ensuring energy efficiency during lighter loads. This feature is particularly beneficial in environments where performance needs can fluctuate, such as in gaming or intensive data analysis.

The processor supports a wide variety of instruction sets, enhancing its compatibility with various software and applications. Additionally, it runs on a highly efficient microarchitecture that optimizes processing cycles, reducing power consumption and heat generation. This is crucial not only for maintaining system stability but also for prolonging the lifespan of the hardware.

Another notable characteristic is its built-in security features, including Intel Software Guard Extensions (SGX) which create isolated execution environments for sensitive operations. This is particularly important in today's digital age, where data security is a top priority for both individuals and organizations.

The Intel 315889-002 is also equipped with Integrated Graphics, which offloads graphical tasks from the CPU, enabling better performance in applications that require visual rendering without needing a dedicated graphics card. This feature is ideal for users who require decent graphics capabilities without the added expense of additional hardware.

Overall, the Intel 315889-002 stands out as a well-rounded processor that combines performance, efficiency, security, and versatility. Its advanced technologies and thoughtful design make it suitable for a wide variety of users, from gamers to professionals, seeking reliable and efficient computing solutions.
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