What the 3.125 Gbps data rate means for your video link
The EQCO62X20C1-I/3DW is a CoaXPress 2.0 transceiver — a combined driver and equalizer — that handles 3.125 Gbps serial data over a single coaxial cable. At this rate it supports 4K60 video transport at the full CXP-6 link speed, where each link carries 6.25 Gbps aggregated over two coax pairs. The equalizer on the receive side compensates for cable attenuation up to 100 m of RG-6, so the link budget is set by the cable length and the connector return loss, not by the silicon.
Package and board-fit for a 4x4 mm QFN
The 16-QFN footprint is standard; the datasheet's recommended land pattern uses a 2.6x2.6 mm center pad with 0.3 mm via diameter. No BGA rework required.