SDI_TX is a high-performance SMPTE-compliant Serial Digital Interface transmitter IP for PolarFire® and PolarFire® SoC FPGAs. Designed for professional broadcast, cinema, medical imaging, and AV applications, the core enables reliable transmission of uncompressed video, embedded audio, and HDR metadata over SD-SDI, HD-SDI, 3G-SDI, 6G-SDI, and 12G-SDI interfaces operating from 270 Mbps to 12 Gbps. It supports resolutions ranging from SD video to 4K UHD, while providing dynamic adaptation to changing color formats, pixel depths, frame rates, and video standards without requiring hardware reconfiguration. The IP supports advanced video formats including RGB, YCbCr, and alpha-channel variants, as well as 8-, 10-, and 12-bit color depths. Integrated audio packetization supports SMPTE-compliant embedded audio, while HDR metadata insertion enables support for HDR10 (PQ), HLG, and SDR content workflows. With automatic resolution detection, VPID insertion, CRC generation, AXI4-Stream and Native interfaces, and optimized integration with PolarFire transceivers, SDI_TX provides a low-latency, broadcast-quality solution for modern FPGA-based video transmission systems.
NOTE : SDI_TX consolidates the capabilities previously offered by both CoreSDITX and CoreUHD_SDITX into a single, unified SDI transmitter IP
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Features and Benefits
- Multi-Rate SMPTE SDI Support
- Supports SMPTE SD-SDI, HD-SDI, 3G-SDI, 6G-SDI, and 12G-SDI standards.
- Supports dynamic SDI operation from 270 Mbps to 12 Gbps with automatic rate detection and reconfiguration.
- Supports SD, HD, 2K, and 4K UHD video transmission up to 4096×2160.
- Supports fractional frame rates including 23.98, 29.97, and 59.94 fps.
- Advanced Video Processing
- Supports four-pixels-per-clock architecture for high-bandwidth video applications.
- YCbCr 4:2:2
- YCbCr 4:4:4
- RGB 4:4:4
- YCbCrA 4:4:4:4
- RGBA 4:4:4:4
- Supports dynamic color formats:
- 8-bit
- 10-bit
- 12-bit
- Supports dynamic pixel bit widths:
- Supports Progressive Segmented Frame (PsF) operation.
- Supports four-pixels-per-clock architecture for high-bandwidth video applications.
- HDR and Audio Support
- Supports embedded audio transmission compliant with SMPTE ST 272, ST 299-1, and ST 299-2 standards.
- Supports 24-bit audio at 48 kHz with configurable 2- or 4-channel operation.
- SDR
- HDR10 (PQ)
- HLG
- Supports static HDR metadata embedding for:
- Embeds mastering display metadata, MaxCLL, and MaxFALL information in the SDI stream.
- SDI Stream Generation and Reliability
- Performs SMPTE-compliant framing, scrambling, and SDI encoding.
- Inserts VPID (SMPTE ST 352) metadata, line numbers, synchronization information, and CRC data.
- Supports automatic resolution detection and resolution-change interrupt generation.
- Optimized for low-latency, lossless video and audio transmission.
- Flexible Integration
- Supports both AXI4-Stream and Native interfaces for video and audio.
- Supports AXI4-Lite and Native configuration interfaces.
- Allows runtime configuration of video formats, frame rates, HDR metadata, and control settings.
- Optimized for PolarFire® and PolarFire® SoC FPGA devices and provided as encrypted RTL.
Licensing Options
Encrypted RTL free with any Libero license
Documentation
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| Serial Digital Interface Transmitter (SDI_TX) IP User Guide | Download |