1.

General description

CBTL06DP211 is a multi-channel high-speed multiplexer meant for DisplayPort (DP)

v1.1a or Embedded DisplayPort applications operating at data rate of 1.62 Gbit/s or

2.7 Gbit/s. It is designed using NXP proprietary high-bandwidth pass-gate technology and

it can be used for 1 : 2 switching or 2 : 1 multiplexing of four high-speed differential

AC-coupled DP channels. Further, it is capable of switching/multiplexing of Hot Plug

Detect (HPD) signal as well as Auxiliary (AUX) and Display Data Channel (DDC) signals.

In order to support GPUs/CPUs that have dedicated AUX and DDC I/Os, CBTL06DP211

provides an additional level of multiplexing of AUX and DDC signals delivering true

flexibility and choice.

CBTL06DP211 consumes very low current in operational mode (less than 1 mA typical)

and provides for a shutdown function (ultra low current consumption less than 10

μA) to

support power-sensitive or battery-powered applications. It is designed for delivering

optimum performance at DP data rates of 1.62 Gbit/s and 2.7 Gbit/s.

A typical application of CBTL06DP211 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 CBTL06DP211 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.

Optionally, the CBTL06DP211 can be used in conjunction with an HDMI/DVI level shifter

device (PTN3360A/B or PTN3360D) to allow for DisplayPort as well as HDMI/DVI

connectivity.

2.

Features and benefits

1 : 2 switching or 2 : 1 multiplexing of DisplayPort (v1.1a - 1.62 Gbit/s or 2.7 Gbit/s)

4 high-speed differential channels with 2 : 1 multiplexing/switching for DisplayPort

signals

1 channel with 4 : 1 multiplexing/switching for AUX differential signals and DDC

single-ended clock and data signals

1 channel with 2 : 1 multiplexing/switching for single-ended HPD signals

High-bandwidth analog pass-gate technology

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

Very low inter-pair skew (< 180 ps)

Switch/multiplexer position select CMOS input

Shutdown mode CMOS input

Shutdown mode delivers ultra low power consumption

CBTL06DP211

DisplayPort Gen1 2 : 1 multiplexer

Rev. 1 — 21 February 2011

Product data sheet