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USB Superspeed Peripherals

BiXu_2571851
New Contributor II

请问官方是否测试过CX3的实际传输速率?最高可以到多少啊?

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Roy_Liu
Moderator
Moderator

基于CX3的UVC摄像头应用学习笔记-一

目前 CX3 支持的最大数据吞吐速率为 2.4 Gbps,单 lane 的最大速率为 1 Gbps。即,当使用 1 lane时,每lane 1 Gbps 共计 1 Gbps. 当使用 2 lane时,每lane 1 Gbps共计 2 Gbps。当使用 3 lane 时,每 lane 800 Mbps 共计 2.4 Gbps。当使用 4 lane 时,每 lane 600 Mbps 共计 2.4 Gbps。用户需要计算,CX3 是否满足应用场景所要求的数据传输速率。

Question

What is the maximum resolution supported by CX3?

Answer

CX3 can support up to 2.4 Gbps (300 MBps) throughput.

You should make sure that the throughput does not exceed 2.4 Gbps. The throughput can be determined by the formula given below.

Image throughput = bits per pixel × (Horizontal resolution + Horizontal blanking) × (Vertical resolution + vertical blanking) × frames per second

For example, some of the resolution, frame rate, and color formats supported by CX3 are given below:

  • 1920 × 1080 (FHD) , 30fps,60fps in YUV422 format
  • 1280 × 720p (HD), 60fps, 120fps in YUV422 format
  • 3840 × 2160 (uHD, 4k x 2k), 16fps in YUV422 format, 30fps in JPEG format with MJPEG 6:1 compression
  • 4096 × 2160 (4k native), 30fps in RAW8 format
  • 13MP , 10fps YUV422 format
  • 8MP, 16 fps YUV422 format
Roy Liu

View solution in original post

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2 Replies
YangyangC_06
Employee

CX3 的最高传输速率在 2.4 Gbps左右。

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Roy_Liu
Moderator
Moderator

基于CX3的UVC摄像头应用学习笔记-一

目前 CX3 支持的最大数据吞吐速率为 2.4 Gbps,单 lane 的最大速率为 1 Gbps。即,当使用 1 lane时,每lane 1 Gbps 共计 1 Gbps. 当使用 2 lane时,每lane 1 Gbps共计 2 Gbps。当使用 3 lane 时,每 lane 800 Mbps 共计 2.4 Gbps。当使用 4 lane 时,每 lane 600 Mbps 共计 2.4 Gbps。用户需要计算,CX3 是否满足应用场景所要求的数据传输速率。

Question

What is the maximum resolution supported by CX3?

Answer

CX3 can support up to 2.4 Gbps (300 MBps) throughput.

You should make sure that the throughput does not exceed 2.4 Gbps. The throughput can be determined by the formula given below.

Image throughput = bits per pixel × (Horizontal resolution + Horizontal blanking) × (Vertical resolution + vertical blanking) × frames per second

For example, some of the resolution, frame rate, and color formats supported by CX3 are given below:

  • 1920 × 1080 (FHD) , 30fps,60fps in YUV422 format
  • 1280 × 720p (HD), 60fps, 120fps in YUV422 format
  • 3840 × 2160 (uHD, 4k x 2k), 16fps in YUV422 format, 30fps in JPEG format with MJPEG 6:1 compression
  • 4096 × 2160 (4k native), 30fps in RAW8 format
  • 13MP , 10fps YUV422 format
  • 8MP, 16 fps YUV422 format
Roy Liu

View solution in original post

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