R&S®UPP-B4 HDMI and digital audio interfaces

The entire range of test signals is used for various types of measurements. HDMI defines layout 0 and 1, i.e. a two-channel and an eight-channel data structure. It transmits linearly coded PCM data with up to 24 bit word length and up to 192 kHz sampling rate. Precoded, compressed data streams can also be used as test signals.

Audio and video data is transmitted in a common frame structure. The R&S^®UPP-B4 option generates both audio and video data. Video test patterns are available with adjustable colors and color depths in the video formats defined in the CEA-861-E standard with resolutions up to 1920 × 1080 pixel.

Video signals from an external source can additionally be fed in over another HDMI port. This picture data is passed on to the DUT, together with the R&S^®UPP's audio test signals. At the analyzer end, all HDMI data is received and the audio content is measured; the video content can be output to an external monitor.

A series of InfoFrames are transmitted together with the audio/video data.

This data is also generated in the R&S^®UPP and is output to match the test signals.

This data packet is stored in the HDMI sink. It contains all of the information that the HDMI source needs to transmit the video and audio data in the formats that the HDMI sink can process.

When generating test signals, the R&S^®UPP reads the DUT's E-EDID information so that the test signals can be set in the suitable format. Conversely, the R&S^®UPP analyzer provides the DUT with its E-EDID information.

Via this data line, different HDMI devices can be controlled using only one remote control device.

In the R&S^®UPP, this data is passed on unchanged.

Audio signals can be transported in the opposite direction via the audio return channel.
The R&S^®UPP-B4 option makes it possible to also generate and measure audio data on the ARC.

This connection allows Internet information to be accessed from an HDMI device.

The R&S^®UPP is equipped with RJ-45 ports for connecting the Ethernet cable and testing Ethernet functionality.

This encryption is used to prevent unauthorized copying of films, etc. When the R&S^®UPP audio analyzer receives an encrypted signal, it automatically decrypts the signal for measurement.

The R&S^®UPP-B4 option features two RJ-45 connectors for connecting the HEC signals as well as the following four HDMI plug-in connectors:

• SOURCE: All audio test signals can be transmitted to the DUT over HDMI; video data and InfoFrames are also generated
• AUX IN: This port allows connection of an external video source, such as a video test generator.
• SINK: This port is used to connect an HDMI DUT to the analyzer section of the R&S^®UPP.
• AUX OUT: This port allows connection of a TV monitor; for example, to operate the DUT via on screen dialog (OSD).

In addition to HDMI, the R&S^®UPP-B4 option includes digital audio interfaces in S/P DIF format to allow measurements on the standard audio interfaces of consumer electronics equipment. This option also includes I²S interfaces for testing audio ICs. With four I²S data lines each in the transmit and receive directions, up to eight audio channels simultaneously can be generated and measured.