TECHNICAL NOTE
HDMI Switch ICs
3 for input 1 output switch with
Termination sense
correspondence
(Sync with HPD_SINK)
BU16028KV
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Description
BU16028KV is 3 for input 1 output HDMI/DVI switch LSI. Each port supports 2.25Gbps. (HDMI 1.3a)
This device control is simple. It requires only 3.3V source and a few GPIO controls.
Terminated resistors(50
Ω
) are integrated at input port. When channel is not selected, termination resistors are turned off.
TMDS inputs are high impedance.
This device is integrated equalization function and DDC buffer function, so it can adapt long cable.
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Features
・
Supports 2.25 Gbps signaling rate for 480i/p, 720i/p, and 1080i/p resolution to 12-bit color depth
・
Compatible with HDMI 1.3a
・
5V tolerance to all DDC and HPD_SINK inputs
・
Integrated DDC buffer
・
Integrated switchable 50
Ω
receiver termination
・
Integrated equalizer circuit to adapt long cable
・
HBM ESD protection exceeds 10kV
・
3.3V fixed supply to TMDS I/Os
・
64Pin VQFP package
・
ROHS compatible
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Applications
・
Digital TV
・
DVD Player
・
Set-Top-Box
・
Audio Video Receiver
・
Digital Projector
・
DVI or HDMI Switch Box
Sep. 2008
