Hi5-4K Mini-Converter v2.7r3 4
www.aja.com
Chapter 1 – Introduction
Overview
AJA’s Hi5-4K supports HDMI v1.4 and provides SDI to HDMI conversion for
formats up to 4K/UltraHD and frame rates up to 60 frames per second. Note that
the data rate for 4K/UltraHD p50/59/60 exceeds the maximum bandwidth of
HDMI v1.4 (10.2 Gbps). To deal with this HDMI limitation, the Hi5-4K provides two
configurable modes for 4K/UltraHD HFR video: drop every other frame or convert
to YCbCr 4:2:0 8 bit.
Hi5-4K provides a simple monitoring connection from professional 4K devices
using Quad 3G-SDI, Quad 1.5G-SDI, or Dual 3G-SDI outputs to displays with HDMI
1.4 inputs. The HDMI output can be configured for YCbCr 4:2:2, 4:4:4, 4:2:0, or RGB
4:4:4. The unit also supports single link SD, HD, and 3G-SDI inputs.
The Hi5-4K supports Quadrant and Two Sample Interleave (2SI) input mapping
of 4K/UHD signals. It can also generate high dynamic range (HDR) metadata in
accordance with HDMI v2.0a/CTA-861.3.
Default Operation
The Hi5-4K auto configures to the connected inputs (no dipswitch settings
required).
The auto-configure function identifies the connected inputs, and outputs the
default or user configured HDMI output for the given input.
AJA’s Mini-Config application is available for firmware updates and advanced
configuration.
NOTE: Signal conversion requires the presence of a valid SDI video signal on the SDI IN 1
BNC.
