Home/ Glossary/ HDCP

What is HDCP

HDCP is the copy-protection protocol on HDMI. When protected content plays, the source checks every device in the chain for HDCP support and withholds the picture, or lowers the resolution, if any device fails.Also called: High-bandwidth Digital Content Protection, HDCP 2.3

What HDCP is

HDCP stands for High-bandwidth Digital Content Protection. Blu-ray players, set-top boxes, game consoles and some video apps run an HDCP handshake with the downstream device before sending protected content. Version 1.4 is the older one, 2.x is what 4K content usually expects, and 2.3 is one of the newer revisions.

HDCP across a wireless link

A wireless link adds a hop between source and display. To the source, the transmitter is the downstream device, so it must support HDCP and carry the authentication on to the far display. A device that relays HDCP this way is called an HDCP Repeater. If the display only supports an older version, the link has to fall back automatically or there will be no picture.

Product makers need an HDCP license

HDCP support in the module is a technical capability. To sell a finished product with HDCP legally, the product maker must obtain its own license from the HDCP licensing body. Budget the cost and lead time at project start rather than discovering it just before production.

On ANLYA modules

ATE9430T / ATE9430R / ATE9460 / ATE9461 support HDCP 2.3 / 1.4 and fall back to 1.4 automatically when the display only supports 1.4. The modules are designed as HDCP Repeaters; the product maker must obtain its own HDCP license.

FAQ

Q1Can a wireless HDMI link carry set-top box and Blu-ray content?
Yes. The modules support HDCP 2.3 / 1.4, so protected content passes. To sell the finished product, the maker needs its own HDCP license.
Q2My display only supports HDCP 1.4. Will it work?
Yes. The link falls back to 1.4 automatically. For 4K content that requires HDCP 2.x, the source may lower its output resolution as a result; that is the source's rule, not the link's.

Not sure which module fits?

Tell us the resolution, range and interfaces. We reply with the module set and carrier-board documents.

Send Requirements All Models