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EZ-USB SX3™ SuperSpeed USB 3.1 Gen1 Peripheral Controller | サイプレス セミコンダクタ

EZ-USB SX3™ SuperSpeed USB 3.1 Gen1 Peripheral Controller

EZ-USB™ SX3 is a FIFO to SuperSpeed USB 3.1 Gen1 bridge that enables developers to add 5-Gbps USB device functionality to any FPGA-based system.

EZ-USB SX3 provides a configurable FIFO interface capable of 3.2 Gbps data bandwidth, and it’s ideally suited for USB Video Class (UVC), USB Audio Class (UAC) and general-purpose data acquisition applications.

SX3 solves these problems

  • SX3 provides 5-Gbps bandwidth – 10x the bandwidth of USB 2.0
  • SX3 is a one-chip solution with integrated PHY and proven USB intellectual property (IP), like its predecessors FX3 and CX3
  • SX3 enables simple configuration of the FIFO interface, USB Video Class (UVC) and USB Audio Class (UAC) endpoints without the need for FW development
  • SX3 shares the same market-proven USB stack with FX3 and CX3, ensuring USB spec compliance and Interoperability
EZ-USB SX3 Block Diagram
  1. Download EZ-USB SX3 datasheet
  2. Download AN231295 - Getting Started with EZ-USB SX3
  3. Download and install EZ-USB SX3 Configuration Utility
  4. Buy HDMI to USB video capturing reference design kits
  5. Watch the reference design kit demo video
  6. Read the Knowledge Base Article on EZ-USB™ SX3 HDMI 4K Capture Card Solution Demo Kit
  7. Get your Schematics reviewed by the Infineon Applications Engineering Team using the Online Tech Support Case System



The Infineon EZ-USB SX3 Reference Design Kit is a brand new, low-cost platform to quickly enable customers to implement a HDMI to USB3 frame grabber. Use this kit with the EZ-USB configuration utility to setup the desirable UVC/UAC parameters.

  • Video capturing devices, HDMI frame grabbers
  • Video conferencing cameras
  • Document and fingerprint scanners
  • Logic analyzers, digital scopes, test and measurement systems
  • General-purpose image or data acquisition systems

SX3 Application Example HDMI video frame grabber

SX3 Application Example USB 3.2 Gen 1 camera

SX3 Application Example General purpose data acquisition


  • USB 3.1 Gen 1 compliant (5 Gbps) peripheral controller
  • USB-IF certified
  • 200-MHz Arm926EJ core
  • 512KB of embedded SRAM
  • 32-bit, 100-MHz, FIFO in slave mode
  • I2C, SPI and GPIOs
  • Pre-configured to support UVC and UAC device class
  • Interface directly with Image sensor or ISP/FPGA through slave FIFO Interface
  • Supports up to 2 Slave FIFO Channels, max throughput up to 400MB/s, 4K UHD, 30fps
  • Supports up to 2 configurable endpoints and USB debug support (CDC Class)
  • I2C Master interface to support FPGA and Image sensor configuration
  • FPGA/ISP firmware storage along with FX3 firmware in one external SPI Flash
  • Configurable through GUI-based configuration utility
  • Supports Windows, MacOS and Linux
  • パッケージ:121-ball BGA (10 x 10 mm)
EZ-USB SX3 Configuration

Helps you configure and program your EZ-USB SX3 device