Overview
IEC 62889:2015 - "Digital video interface – Gigabit video interface (GVIF) for multimedia systems" - specifies the physical layer of a serial digital video interface designed for high‑speed, uncompressed video interconnection. GVIF uses low voltage differential signaling (LVDS) over a single shielded twisted pair to deliver baseband video (up to 24‑bit colour) for automotive and embedded multimedia systems. The standard defines transmission line characteristics and electrical requirements for transmitters and receivers, but does not include mechanical connector specifications.
Keywords: IEC 62889:2015, GVIF, gigabit video interface, digital video interface, LVDS, automotive multimedia.
Key topics and technical requirements
- Physical layer specification: electrical DC and AC characteristics for GVIF transmitters and receivers, eye‑mask requirements and LOS detection.
- Transmission line characteristics: tolerance impedance, transmission loss profiles and guidance for shielded twisted‑pair cabling optimized for low EMI and high noise immunity.
- Front‑end and link management: TX/RX front‑end behavior, transition state handling and reference clock signaling.
- Protocol elements: encoder/decoder mapping (including 4B5B conversion and header formats), data framing for pixel‑based video (supporting RGB and YUV formats), and optional audio/user data channels.
- Multi‑link operation: informative annex covering single‑pair and multi‑pair parallel link configurations for higher bandwidth or pixel packing.
- Performance scope: supports display resolutions from WQVGA through WUXGA, 24‑bit per pixel color, and reliable transmission over cable lengths exceeding 10 m in automotive environments.
- Content protection support: designed to pair with HDCP for protected content delivery (optional).
Keywords: transmission line, electrical characteristics, encoder/decoder, 4B5B, eye mask, LVDS, WUXGA.
Applications
- In‑vehicle infotainment (IVI) links: camera, navigation, head‑unit to display connections where small lightweight cabling, low EMI and robust noise immunity matter.
- Automotive displays and rear‑seat entertainment systems.
- Embedded multimedia devices requiring point‑to‑point uncompressed video over short to medium cable runs.
- Any system needing a standardized gigabit serial video physical layer with optional audio and user data channels.
Keywords: automotive video interface, in‑vehicle display, uncompressed video, infotainment.
Who should use this standard
- Automotive OEMs and Tier‑1 suppliers designing display and camera subsystems.
- Hardware and IP developers implementing GVIF TX/RX PHYs.
- System integrators and test labs validating electrical conformance and EMI performance.
- Standards and compliance engineers aligning product interfaces with IEC/industry norms.
Related standards
- IEC 62315‑1 (DTV profiles for uncompressed digital video interfaces)
- ITU‑R BT.601‑5 and ITU‑R BT.656‑5 (video encoding and interface parameters)
- JEITA CP‑6101 (original GVIF specification), ARIB STD‑B21 (referenced in automotive context)
Keywords: IEC 62315, ITU‑R BT.601, JEITA GVIF, ARIB.