TIDEP0068

PCI Express PCB Design Considerations Reference Design for the K2G General Purpose EVM (GP EVM)

TIDEP0068

Design files

Overview

PCI-Express provides for low pin-count, high reliability, and high-speed with data transfer at rates of up to 5.0 Gbps per lane, per direction, and an PCIe module is included on the TI 66AK2Gx DSP + ARM Processor system on chip (SoC).  This PCIe PCB design considerations reference design  helps developers optimize the printed circuit board (PCB) design by providing best-practice PCB for the PCIe portion of the 66AK2Gx Processor SoC.  This in turn enables developers achieve desired PCIe signal performance on the first PCB implementation pass, allowing rapid focus on K2G Processor based application development and test.  The 66AK2Gx General Purpose EVM (EVMK2G) is used as a reference to discuss some of these considerations.

Features
  • Optimized High Speed Signal Routing
  • Surface-Mount PCIe x1 Socket
  • Example of AC Coupling Capacitor Placement
  • Example of Recommended Differential Pair Spacing

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUBJ4A.PDF (2432 K)

Reference design overview and verified performance test data

TIDRLE5A.PDF (1523 K)

Detailed schematic diagram for design layout and components

TIDRLE5.PDF (1530 K)

Detailed schematic diagram for design layout and components

TIDRLE6A.PDF (119 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRLE6.PDF (117 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRLE7A.ZIP (151 K)

Detailed overview of design layout for component placement

TIDRLE7.ZIP (151 K)

Detailed overview of design layout for component placement

TIDRLE8A.ZIP (12389 K)

Files used for 3D models or 2D drawings of IC components

TIDRLE8.ZIP (12389 K)

Files used for 3D models or 2D drawings of IC components

Products

Includes TI products in the design and potential alternatives.

AND gates

SN74LVC1G08Single 2-input, 1.65-V to 5.5-V AND gate

Data sheet document-pdfAcrobat PDF
Arm-based processors

66AK2G12High performance multicore DSP+Arm - 1x Arm A15 cores, 1x C66x DSP core

Data sheet document-pdfAcrobat PDF open-in-new HTML
Clock generators

CDCM62082:8 ultra-low power, low jitter clock generator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Multi-channel ICs (PMICs)

TPS65911Integrated Power Management IC (PMIC) with 4 DC/DCs, 9 LDOs and RTC

Data sheet document-pdfAcrobat PDF open-in-new HTML
Noninverting buffers & drivers

SN74LVC1G07Single 1.65-V to 5.5-V buffer with open-drain outputs

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Hardware

Development kit

EVMK2G – 66AK2Gx (K2G) Evaluation Module

The K2G Evaluation Module (EVM) enables developers to immediately start evaluating the 66AK2Gx - 600MHz processor, and to accelerate the development of audio, industrial motor control, smart grid protection and other high reliability, real-time compute intensive applications.  Similar to (...)

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Technical documentation

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Type Title Date
* Design guide PCI-Express PCB Design Considerations for the K2Gx GP EVM Design Guide (Rev. A) Jun. 12, 2018

Related design resources

Hardware development

DEVELOPMENT KIT
EVMK2GX 66AK2Gx 1GHz evaluation module

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
PROCESSOR-SDK-K2G Processor SDK for 66AK2Gx Processors - Linux and TI-RTOS Support

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