Power Solution for C667x DSP AVS Core (CVDD) with Dynamic Voltage Scaling

(ACTIVE) TIDEP0011

Description & Features

Technical Documents

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Description

This reference design aims to supply the AVS core supply (CVDD) in the Keystone Multicore DSPs, mainly the C66x series. The C66x series uses SmartReflex technology to enable the DSP to control its supply voltage. In order to meet this requirement, this design combines a Synchronous Buck Converter (TPS56121) with the voltage Programmer for POL (LM10011). The LM10011 accepts a 6-bit or 4-bit VCNTL from the DSP and changes the output voltage of the TPS56121 to what the DSP requires. The LM10011 has a high accuracy (1.0%) accuracy allowing  additional system margin in the remaining power supply components and distribution. For processors which require specific initial startup voltages the LM10011 can be configured to start up at one of 16 selectable currents.

Features
  • 1.0% Output Current Accuracy (0°C to +100°C)
  • 1.25% Output Current Accuracy (–40°C to +125°C)
  • Input Voltage Range: +2.97V to +5.5V
  • Pin Selectable VID Format (6/4 bit)
  • 16 Selectable Start-Up Currents
  • Precision Enable to Support Custom UVLO
  • Tested reference design that includes schematic, design files, bill of materials, and test data.

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




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Part Number Status

TIDEP0011:
Power Solution for C667x DSP AVS Core (CVDD) with Dynamic Voltage Scaling

ACTIVE

TI Devices (10)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM10011  1% Accuracy 4/6-Bit VID Voltage Programmer for Point of Load Regulator w/ Adj Start-Up Current  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules
TMS320C6670  Multicore Fixed and Floating-Point System-on-Chip  C6000 DSP  Sample & Buy View Design Kits & Evaluation Modules
TMS320C6671  Fixed and Floating-Point Digital Signal Processor  C6000 DSP  Sample & Buy View Design Kits & Evaluation Modules
TMS320C6672  Multicore Fixed and Floating-Point Digital Signal Processor  C6000 DSP  Sample & Buy View Design Kits & Evaluation Modules
TMS320C6674  Multicore Fixed and Floating-Point Digital Signal Processor  C6000 DSP  Sample & Buy View Design Kits & Evaluation Modules
TMS320C6678  Multicore Fixed and Floating-Point Digital Signal Processor  C6000 DSP  Sample & Buy View Design Kits & Evaluation Modules
TPS54320  4.5V to 17V Input, 3A Synchronous Step-Down SWIFT™ Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS54521  17V Input, 5A Synchronous Step-Down Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS84320  4.5-V to 14.5-V Input, 3-A Synchronous Buck, Integrated Power Solution  Non-Isolated Module  Sample & Buy Not Available

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1268 13 Jun 2014 228
Design files (3)
Title Abstract Type Size (KB) Date Views
ZIP 2171 13 Jun 2014 113
ZIP 17 13 Jun 2014 79
PDF 276 13 Jun 2014 277


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