CBTL06DP212 Datasheet, PDF (1/19 Pages) NXP Semiconductors – CBTL06DP212 provides an additional level of multiplexing of AUX and DDC signals delivering true flexibility and choice.

CBTL06DP212
High-performance DisplayPort Gen2 2 : 1 multiplexer
Rev. 2 — 3 November 2011
Product data sheet
1. General description
CBTL06DP212 is a high performance multi-channel Generation 2 multiplexer meant for
DisplayPort (DP) v1.2, v1.1a or Embedded DisplayPort applications operating at data rate
of 1.62 Gbit/s, 2.7 Gbit/s or 5.4 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, CBTL06DP212 provides an additional level of multiplexing of AUX
and DDC signals delivering true flexibility and choice.
A typical application of CBTL06DP212 is on motherboards where one of two GPU
DisplayPort sources needs to be selected to connect to a DisplayPort sink device or
connector. A controller chip selects which path to use by setting a select signal HIGH or
LOW. Due to the bidirectional nature of the signal paths, CBTL06DP212 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.
2. Features and benefits
 1 : 2 switching or 2 : 1 multiplexing of DisplayPort (v1.2 - 5.4 Gbit/s) signals
 4 high-speed differential channels with 2 : 1 multiplexing/switching for DisplayPort
main link signals
 1 channel with 4 : 1 multiplexing/switching for AUX or DDC signals
 1 channel with 2 : 1 multiplexing/switching for HPD signal
 High-bandwidth: 5 GHz at 3 dB
 Low insertion loss:
 0.5 dB at 100 MHz
 3 dB at 5 GHz
 Low crosstalk: 35 dB at 3 GHz
 Low off-state isolation: 30 dB at 3 GHz
 Low return loss: 8 dB at 3 GHz
 Very low intra-pair skew (5 ps typical)
 Very low inter-pair skew (< 80 ps)
 Switch/multiplexer position select CMOS input
 DDC and AUX ports tolerant to being pulled to +5 V via 2.2 k resistor
 Supports HDMI/DVI incorrect dongle connection
 Single 3.3 V power supply
 Operation current of 2 mA typical