US 
Yuan SC542N1-L SDI PCIe SDI Frame Grabber with 1080p60 Input
PCI ExpressSC542N1-L SDI Overview
Streaming a single SDI camera or recording a production feed calls for a capture card that keeps the full frame rate and leaves the signal free for a local monitor. The SC542N1-L SDI is Yuan’s single-channel PCIe SDI frame grabber for that job, with an SDI input and an SDI loop-through output.
The card captures SDI up to 1920 x 1080p at 60/50 fps, with HD-SDI at 1080p30/25/24, 1080i60/50 and 720p60/50, and SD-SDI at 720 x 480i and 720 x 576i. Capture and preview formats cover RGB24 and RGB32 at 4:4:4, YUY2 at 4:2:2, and YV12 and NV12 at 4:2:0, all at 8-bit. Embedded audio is captured as stereo 16-bit at 32 to 48 kHz. On-board processing handles cropping and scaling, auto signal detection and deinterlacing. There is no built-in hardware encoder, so any encoding is left to the host software.
The card uses a PCIe x1 Gen2 link. Yuan provides a Windows and Linux SDK, supports DirectShow and V4L2 software, and lists vMix, OBS, Zoom, Skype, Teams, Discord, Slack, Cisco Webex and GoToMeeting as compatible applications. The SC542N2-L SDI captures two SDI feeds with loop-through on the same interface, and the SC542N1 MC SDI brings a single SDI input to a Mini PCIe socket.
Yuan supports Windows 7, 8, 8.1 and 10, Linux 2.6.14 or later in 32-bit and 64-bit form, Linux on ARM, and the NVIDIA Jetson TX2, Nano, AGX Xavier and Xavier NX. The board measures 108 x 68.9 mm and carries 16 GPIO lines and a watchdog, useful in unattended recorders. Yuan lists multi-device and multi-instance support, for hosts that run more than one card or capture session.
SC542N1-L SDI Specifications
| Overview | |
|---|---|
| Brand & Model | Yuan SC542N1-L SDI |
| Video Capture | |
| Host Interface | PCIe [x1, Gen1] |
| Simultaneous Video Inputs | 1 |
| Video Input | 1x SDI |
| Video Resolution Input | HD60 [1920x1080p @ 60/50fps] |
| Video Output | 1x 3G-SDI |
| Video Resolution Output | HD60 [1920x1080p @ 60/50fps] |
| Color Format | NV12 RGB24 RGB32 YUY2 YV12 |
| Audio Input | 1x 3.5mm Audio Input 1x SDI Embedded Audio Input |
| Audio Output | 1x 3.5mm Audio Output 1x SDI Embedded Audio Output |
Official Yuan USA Distributor
Things Embedded is an official Yuan USA distributor, supplying the SC542N1-L SDI installed in the capture PCs we build for USA broadcast and AV projects. Within the Yuan range the SC542N2-L SDI doubles up to two SDI channels with loop-through, and the SC542N4-L SDI captures four SDI feeds on a PCIe x4 card.
As a single-channel SDI card the SC542N1-L SDI sits among our PCIe capture cards and our SDI video capture cards. Where one SDI camera or production feed must be captured at 1080p60 and still reach a local monitor through the loop-through, this is the model to specify.
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