NXP推出一个边带信号多路复用器CBTL03SB212

The CBTL03SB212 is a sideband signal multiplexer for DisplayPort Gen2 applications. It provides one differential channel capable of switching or multiplexing (bidirectional and AC-coupled) DisplayPort 1.2 Fast AUX or AUX signal, using high-bandwidth pass-gate technology. Additionally, it provides for switching/multiplexing of the Hot Plug Detect signal as well as the Display Data Channel (DDC) signals, for a total of three channels.

A typical application of CBTL03SB212 is on motherboards where one of two GPU display sources needs to be selected to connect to a display sink device or connector. A controller chip selects which path to use by setting a select signal HIGH or LOW. Due to the non-directional nature of the signal paths (which use high-bandwidth pass-gate technology), the CBTL03SB212 can also be used in the reverse topology, e.g., to connect one display source device to one of two display sink devices or connectors.

Features and benefits

1 : 2 multiplexing of DisplayPort signals
      1 high-speed differential channel for Fast AUX or AUX
      1 channel for DDC clock and data
      1 channel for HPD

High-bandwidth analog pass-gate technology

Very low intra-pair differential skew (5 ps typical)

Switch/MUX position select

Shutdown mode CMOS input

Shutdown mode minimizes power consumption while switching all channels off

Very low operation current of 0.2 mA typical

Very low shutdown current of < 10 μA

Single 3.3V power supply

ESD 4 kV HBM, 1 kV CDM

Available in 4 mm × 4 mm HVQFN20 package