BU16027KV-E2

Video Processing Overview

The BU16027KV-E2 is an HDMI switch IC manufactured by Rohm Semiconductor, designed for consumer video applications. It supports a signaling rate of up to 2.25 Gbps and complies with the HDMI 1.3a standard. The device features three TMDS inputs and one output, operating on a fixed 3.3V supply voltage (range 3V to 3.6V). It includes integrated active DDC buffers, switchable 50Ω termination resistors, and equalizer circuits for long cable adaptation. ESD protection exceeds 10kV HBM, and all DDC and HPD_SINK inputs are 5V tolerant. The component is housed in a 64-pin VQFP package.

Video Processing Feature Summary

• Supports high-speed digital video transmission up to 2.25 Gbps signaling rate for resolutions including 480i/p, 720p, and 1080i/p with 12-bit color depth.
• Integrates switchable 50Ω termination resistors at all TMDS input ports that disconnect when channels are unselected to reduce power consumption.
• Features built-in active DDC buffers to isolate capacitance and an equalizer circuit to compensate for signal degradation over long cables.
• Provides robust ESD protection exceeding 10kV HBM and maintains 5V tolerance on all DDC and Hot Plug Detect sink inputs.

Video Processing Applications

• Digital TVs
• Audio Video Receivers
• Digital Projectors
• DVI or HDMI Switch Boxes

Video Processing Procurement Notes

Verify the specific suffix 'E2' corresponds to the embossed tape and reel packaging format as defined in the manufacturer's ordering information. Confirm the component status and availability directly with authorized distributors, as electronic components may be subject to discontinuation or lifecycle changes without prior notice. Ensure design compatibility with the specified 3.3V fixed supply voltage and VQFP64 package dimensions during integration.

Video Processing Selection Notes

Select this model for designs requiring three independent HDMI source inputs switched to a single sink output. It is suitable for systems needing integrated impedance matching via internal termination resistors and signal conditioning through the built-in equalizer. The 5V tolerant control interfaces simplify connection to various logic levels without additional level shifting components. Verify that the application does not require serial cascading of multiple units at maximum data rates due to potential jitter tolerance limitations.

Video Processing Part Context

This component belongs to the BU160xxKV series of HDMI Switch ICs from Rohm Semiconductor. The series includes variants such as the BU16006KV, BU16018KV, and BU16024KV, which differ primarily in the number of supported inputs and package configurations. All members share common electrical characteristics, including 3.3V operation, HDMI 1.3a compliance, and integrated DDC buffering capabilities.

Video Processing Replacement Considerations

BU16024KV

Video Processing FAQ

How is the source selection controlled?

Source selection is managed via two GPIO pins, S1 and S2, which determine which of the three input ports is connected to the output.

What happens to the termination resistors when a channel is inactive?

When a channel is not selected, the TMDS input termination resistors are turned off, placing the inputs in a high-impedance state.

Is the device compatible with AC coupling capacitors?

Yes, the device can communicate using AC coupling capacitors, but care must be taken regarding common mode voltage differences to prevent damage from AC current flow.