The Video Electronics Standards Association of America (VESA) officially supports DisplayPort Alternate Mode (Alt Mode) transmission through the USB Type-C standard, which allows for full audio and video output capability using the USB Type-C interface. The A223804 USB-C signal module supports DisplayPort 1.3 Alt Mode video output with a maximum output resolution of 4Kx2K@60Hz, meeting the needs of today's video quality testing.

Chroma A223804 features a built-in high-speed graphics engine that supports HBR2 transmission rates using up to 4 lanes in compliance with the DisplayPort 1.3 specification. Lane rates can be set to 1.62, 2.7, or 5.4 Gbps according to different resolutions, providing users with a test solution for a variety of applications.

The Power Delivery (PD) protocol enables automatic reading of the role of the DUT, and the automatic/manual Power and Data Role Swap function allows users to conveniently confirm the role status, suitable for a variety of USB-C power products.

The Power Role monitoring function (Power Source / Power Sink) can automatically read the power role of the device under test through PD and carry out automatic/manual Power Role Swapping, helping users to confirm the power source or power sink role of the DUT.

When the A223804 is used as a Power Sink when testing, it can read the PDO (Power Data Object) of the DUT (as a Power Source) through the PD protocol, supporting up to 7 modes. In automatic mode, the most suitable PDO can be selected automatically according to the set PDO profile; in manual mode, the PDO parameters to be selected can be switched manually for testing.

Three types of settings are supported: Fixed, Battery, and Variable. In Fixed mode, the parameters of the maximum current and percentage of peak current can be set; in Battery mode, the parameters of maximum wattage and upper and lower voltage limits can be set; in Variable mode, parameters of maximum current and upper and lower voltage limits can be set. In this way, the module enables a comprehensive functional verification of the DUT.

The A223804 also supports the above functions when performing the Power Source Role during the test.

USB-C cables contain a VBUS wire for power transmission. The A223804 is equipped with switching control for VBUS voltage and current detection, which enables the user to monitor the DUT's voltage and current loss.

The Data Role Swap function can swap and display the Data Role as UFP (Upstream Facing Port) or DFP (Downstream Facing Port) mode in real time.

The A223804 supports USB-C Power Delivery 2.0 (PD 2.0) with up to 100W (20V/5A) power output. Users can set 5 standard voltage values of 5V / 9V / 12V / 15V / 20V to easily adjust voltage and current. (paired with the Chroma External Power Unit)

The module supports USB 3.1 Gen1 with a maximum transfer speed of 5Gbps, and USB 2.0 with a transfer speed of 480Mbps, and can automatically read USB version information and USB read/write file transfer rate information at the same time.

A223804 is equipped with a selectable Sink test function. It supports manual switching between 10 load levels, voltage/current variation testing according to the parameters of the PDO, and display of its verification results. This helps R&D and QA units to confirm the power supply capacity of the DUT.

In the past, USB-A/B connectors were divided into positive and negative sides, and could only be inserted into the interface in one specific way. The introduction of the reversible USB-C connector solved this inconvenience.

The A223804's built-in automated software can determine the USB-C connector's orientation based on the circuit, and its Cable Flip function can virtually switch between the positive and negative side. Physically plugging and unplugging the cable is no longer necessary, which saves test time and prevents damage to the connector.

It provides voltage and power measurement of the Configuration Channel (CC) and VCONN pins. During the automatic test, users can set the upper and lower voltage judgment range of CC and VCONN to check whether the power supply of CC and VCONN is functioning normally.

The USB-C cable information reading (E-Mark) function reads cable power transmission capability, data transmission capability, and ID information, providing users with the ability to quickly confirm the status of the DUT during the testing process for USB-C interface test applications.

The PD 2.0 specification defines a maximum power supply of 100W (20V/5A). In response to this test requirement, the A223804 can be connected to an external power unit to perform a 100W power supply specification test. It can freely switch the power role according to the requirements of the DUT, and test whether the DUT can operate normally under different voltage and current conditions. (optional)

HDCP (High-Bandwidth Digital Content Protection) prevents illegal copying of data as it is transmitted through the interface. The A223804 supports HDCP versions 2.2 and 1.3 and allows the user to freely switch between the two versions. During the testing process, results can be output directly on the screen of the DUT, enabling users to instantly view related HDCP handshaking information.

DPCD (DisplayPort Configuration Data) acts as the main communication channel between the source and sink of the DisplayPort interface. By reading the DPCD register of the sink device, Chroma A223804 can display the transmission channel and rate supported by the sink device, and carry out related tests by outputting the corresponding standard signal.

EDID (Extended Display Identification Data) is a VESA-defined data standard for identifying DDC displays. The A223804 uses I2C to directly read, compare and write to the EDID register inside the display, which includes the supplier's information, image size, color setting, and frequency range. At the same time, users can edit the EDID through an external PC's software interface and display the complete analysis results.

Chroma 2238 Video Pattern Generator integrates complete executable programs with timings, test patterns, and audio that can be configured freely according to testing needs. Not only does the equipment carry up to 2000 timing patterns and 5000 images, users also can add their own test patterns to meet a large variety of test specifications.

The built-in resolution test chart can accurately indicate the correct scale according to different Timings. In addition to geometric shapes and aspect ratio tests (4:3, 16:9), other test patterns such as Color Bar and Grayscale are also included. With these test patterns, users can easily determine the display's imaging quality and simultaneously monitor the HDCP and EDID execution status on the on-screen display, especially useful for R&D, production and QA purposes.

High conductivity beryllium copper improves the conductivity between components and reduces electromagnetic radiation leakage interfering with the DUT, in compliance with CE/EMC (Electromagnetic Compatibility) standards.

Applications: displays, smartphones, notebooks, IC design, USB Type-C cables, power banks, digital set-top boxes, adapters, EMS.



IC Design

USB Type-C cable

Power Bank

Set Top Box


EMS Factory
Video Pattern Generator 2238
USB-C Module Specifications
Model A223804 A223810
DisplayPort DisplayPort 1.3 DisplayPort 1.4
Port(s) • USB-A x1
• USB-B x1
• USB-C x1
• Extension Power & Load x1
• USB-A x1
• USB-B x4
• USB-C x1
• Extension Load x1
• Extension Power x1
Resolution (Max) 4K@60Hz 8K@30Hz
Lane Rate 1.62 / 2.7 / 5.4 Gbps 1.62 / 2.7 / 5.4 / 8.1 Gbps
Color Space RGB • RGB
• ITU-R BT.601
• ITU-R BT.709
• ITU-R BT.2020
• DCI-P3
HDCP v2.2 / v1.3 v2.3 / v2.2 / v1.3
Power Delivery Power Delivery 2.0 Power Delivery 2.0 / Power Delivery 3.0
USB-C • USB 3.1 Gen 1
• 5Gbps / 480Mbps
• USB 3.2 Gen 2 x1
• 10Gbps / 5Gbps / 480Mbps
Cable Flip
Scrolling - Speed by Pixel or Line
USB Simulator -
Configuration Channel (CC)
Power Role Source / Sink / DRP Source / Sink / DRP
Data Role DFP / UFP / DRP DFP / UFP / DRP
PDO 5V / 9V / 12V / 15V / 20V 5V~20V (Programmable)
Full Line of Chroma 2238 Signal Modules

Chroma A223805 HDMI Signal Module Chroma A223801 DisplayPort Signal Module Chroma A223806 DVI Signal Module Chroma A223810 USB-C Signal Module Chroma A223809 USB-C Signal Module Chroma A223814 HDMI Signal Module Chroma A223812 HDMI 8K Media Player Module Chroma A223800 12G-SDI Signal Module Chroma A223802 HDMI Signal Module Chroma A223803 Analog Signal Module Chroma A223804 USB-C Signal Module Chroma 2238 Video Pattern Generator Chroma A223813

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All specifications are subject to change without notice.

USB-C Signal Module

Audio Test Module *Call for availability

DisplayPort Signal Module *Call for availability

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