Description
The HA5-12G is an HDMI 2.0 to 12G-SDI converter designed to convert and distribute 4K/UltraHD HDMI sources to single-link 12G-SDI outputs. It accepts HDMI 2.0b inputs up to 4K 60p and provides two mirrored 12G-SDI outputs for integration into SDI infrastructures. The unit supports HDR metadata handling to preserve high dynamic range content across the signal chain.
Key capabilities include support for 4:4:4, 4:2:2 and 4:2:0 chroma sampling and up to 12-bit color workflows where supported. The HA5-12G embeds audio from HDMI or from the two-channel RCA analog inputs and can pass through compressed audio formats such as AC-3 and E-AC-3 including Atmos JOC. EDID emulation and simple frame rate conversion make it practical for mixed-source environments.
Technically the converter supports a wide range of input formats from SD through 4K and UltraHD at common frame rates including fractional and integer rates up to 60p. Video output options include 12G-SDI native single-link along with 6G, 3G, 1.5G and SD outputs depending on source mapping. HDR infoframe analysis and VPID generation allow metadata pass-through or override to maintain correct colorimetry and transfer characteristics.
Connectivity is straightforward with a single HDMI Type A input, two 12G-SDI BNC outputs, a USB port for configuration via AJA Mini-Config, and dual RCA analog audio inputs for embedding. The power input accepts 5-16 VDC and ships with a universal power supply for global use. LED indicators provide quick visual feedback on input raster type to simplify setup.
Typical applications include live production feeds, camera-to-SDI conversion on set, distribution of HDR HDMI sources to broadcast infrastructure, and studio monitoring workflows. The HA5-12G is suitable where reliable HDMI to SDI conversion and audio embedding are required, and where preserving HDR metadata and color fidelity is important. It also supports DSLR progressive formats for easier integration of camera feeds into SDI systems.
Installation is simple and compact thanks to the Mini-Converter form factor, which fits behind monitors or on camera rigs and accepts optional P-TAP power for battery operation. The unit uses convection cooling and should be mounted with adequate ventilation to ensure proper thermal performance. Firmware updates and configuration are handled via the supplied Mini-Config utility over USB.
Overall the HA5-12G provides a compact, technically capable HDMI to 12G-SDI conversion solution that preserves HDR metadata and supports modern 4K60 workflows. Its audio embedding options and EDID emulation reduce integration time in mixed-source environments. For installations requiring fiber extension there are HA5-12G-T and HA5-12G-T-ST variants that add single-channel 12G fiber transmitters for long-distance links.
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