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Dual-channel 4K UHD or Quad-channel HD SDI-IP Hybrid Format Converter with HDR and Audio Processing Application for the XIP-3911 and XIP-3901

The XIP-3901-UDC-IF application has two operating modes — SDI only or SDI and IP (hybrid) — for deployment flexibility and to provide a bridge to an all IP workflow. The XIP-3901-UDC-IF has optional HDR and audio processors and, in addition, allows the application to be configured as a dual-channel 4K UHD or quad-channel HD broadcast-quality format converter.

The optional HDR processor, XIP-3901-UDC-HDR, allows conversion between SDR and HDR formats and wide color gamut BT.709 and BT.2020, supporting HLG (ITU-R BT.2100), PQ (ITU-R BT.2100), and S-Log3/S-Gamut3 formats.


  • Independent dual-channel 4K UHD or quad-channel HD broadcast-quality up/down/cross video processor
  • 12G 2160p, 3G 1080p and HD 1080i/720p SDI inputs and outputs
  • Integrated frame synchronizer with additional video delay programmable to 6 frames
  • Audio/video deglitcher to handle video hot switch at the input
  • Video proc including: gain, offset, hue, horizontal and vertical picture enhancement during downconversion, RGB color corrector and gamut legalization
  • PTP, external reference or dual URS frame reference supported
  • Embedded audio and metadata delay and synchronization
  • IP output available on dual 25 GigE IP media network interfaces:
    • SMPTE ST 2110-20/21 video outputs with associated SMPTE ST 2110-40 metadata streams
    • Four SMPTE ST 2110-30/31 Level A, B, C audio stream outputs per processing channel
    • SMPTE ST 2022-7 for seamless protection of IP streams
    • JT-NM TR-1001-1 compliant including NMOS IS-04/IS-05
    • SMPTE ST 2059-1/-2 PTP with BMCA
    • Media interfaces supports AOC cable, Short and Long Reach fiber
    • Both FEC74 (CL74 Fire Code) and FEC108 (Reed Solomon IEEE) Forward Error Correction are supported
  • XIP-3901-UDC-HDR option provides HDR conversion supporting both Wide Color Gamut BT.709/ BT.2020 and High Dynamic Range: HLG, PQ and S-Log3:
    • Agile HDR conversion based on input signal colorimetry
    • Supports 33-point Tetrahedral 3D LUT interpolation with choice among Grass Valley conversion algorithms, built-in BBC LUTs v1.5 NBCU LUTs, or user-defined custom LUTs compliant to Adobe cube file v1.0
    • All processing operates in full 10-bit video signals with ability to pass sub-blacks and super-whites in SMPTE narrow video
    • ITU R BT 2111 HLG/PQ color bar test patterns
  • XIP-3901-UDC-AUD option adds four SMPTE ST 2110-30/31 audio input streams per processing channel, and provides 256 channel audio processors with level, delay, 2:1 mixer/shuffling, up-mixing and down-mixing 5.1.4 or 5.1 surround sound signal to a stereo channel pair
  • GV Orbit for configuration, control and monitoring
  • Individual XIP-3911 and XIP-3901 applications licensed, purchased as needed
  • Rapid switching between XIP-3911 applications
  • The XIP-3901-UDC-IF is also supported by the ATP-2000 Touch Panel with GV Orbit Dynamic Orchestration where all video processing parameters of both paths can be controlled from a touch panel interface


SDI (Inputs/Outputs

Physical: 10 used HD-BNC connectors: 2 in, 8 out

SDI standard:

  • SMPTE ST 292 (1.485, 1.485/1.001 Gb/s)
  • SMPTE ST 424 (2.970, 2.970/1.001 Gb/s)
  • SMPTE ST 2082-1:2015 (in 1 & 5, out 1 & 5)

Supported input/output formats:

  • HD: SMPTE ST 274: 1080i59.94, 1080i50
  • HD: SMPTE ST 296: 720p59.94, 720p50
  • 3G: SMPTE ST 425 level A (mapping 1): 1080p59.94, 1080p50
  • 12G: SMPTE ST 2082-10: 2160p59.94, 2160p50

Cable length (Belden 1694A):

  • HD: 250m (820 ft.) at 1.485 Gb/s
  • 3G: 150m (492 ft.) at 2.970 Gb/s
  • 12G: 55m (180 ft.) at 11.88 Gb/s


  • HD/SD: <0.2 UI (alignment jitter)
  • 3G: <0.3 UI (alignment jitter)
  • 12G: <0.3 UI (alignment jitter)


Reference Input

Physical: SMPTE ST 170/SMPTE ST 318/ITU 624-4 blackburst

Ethernet Port for Media

Physical: Two SFP28 sockets for active optical cable, short- and long-reach fiber

Standard: IEEE 802.3-2008 25 GbE

Performance: Up to 25 Gb of streaming per direction

Ethernet Port for Control

Physical: One electrical RJ45 port

Standard: IEEE 802.3 1000 Mb/s

Video Processing Performance

Signal path: 10 bits minimum


Power: 60W maximum


Application Software


Application Options

HDR processing option

Audio processing, down/up mix, shuffling option

Densité 3+ Frame

Agile SDI/IP processing platform

Double rear panel for Densité 3+ with HD-BNC

SFP+ Options

One or two SFP+ are needed to run this application with SMPTE ST 2110 IP streams

SFP28 25GBASE optical transceiver MMF

SFP28 25GBASE optical transceiver SMF

Remote Control

GV Orbit version 1.2, iControl or iControl Solo (version 7.50 or higher required)




The XIP-3901-UDC-IF application from Grass Valley is a dual-channel 4K UHD broadcast-quality format converter with optional HDR and audio processor supporting a hybrid SDI/IP environment.

The XIP-3901-UDC-IF provides frame synchronization and video processing functions to perform up/down/crossconversion needed to maintain the chosen output format, irrespective of whether the input is HD 720p, 1080i, 1080p or UHD 2160p.



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