CBTL04DP211 DisplayPort 2 : 1 multiplexer Rev. 2 13 April 2012 Product data sheet 1. General description CBTL04DP211 is an (Embedded) DisplayPort multiplexer for DisplayPort v1.1a switching and multiplexing applications on PC platforms. It is capable of 1 : 2 switching or 2 : 1 multiplexing of 2-lane DisplayPort Main Link signals, using high-bandwidth pass-gate technology. Also, it can switch/multiplex Hot Plug Detect (HPD) signal and AUX signals, for a total of four channels on the display side. To facilitate DisplayPort switching/multiplexing scheme on PC platforms suitably, CBTL04DP211 provides two separate selection pins (GPU SEL, AUX SEL). The selection pin GPU SEL performs switching from one Main Link to another Main Link. HPD signals will also be switched using the same selection pin. A separate select pin (AUX SEL) provides additional selection between two AUX channels such that the AUX channel selection is independent of the Main Link and HPD signal selection. A typical application of CBTL04DP211 is on motherboards where one of two GPU/CPU display 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 non-directional nature of the signal paths (which use high-bandwidth pass-gate technology), the CBTL04DP211 can also be used in the reverse topology, e.g., to connect one DisplayPort source device to one of two DisplayPort sink devices or connectors. 2. Features and benefits Supports DisplayPort v1.1a: 1.62 Gbit/s, 2.7 Gbit/s Supports Embedded DisplayPort v1.2: 1.62 Gbit/s, 2.7 Gbit/s Supports 1-lane, 2-lane Main Link operation 1 : 2 switching or 2 : 1 multiplexing of DisplayPort Main Link signals 2 high-speed differential channels with 2 : 1 multiplexing/switching for DisplayPort Main Link signals 1 channel with 2 : 1 multiplexing/switching for AUX signals 1 channel with 2 : 1 multiplexing/switching for single-ended HPD signals High-bandwidth analog pass-gate technology Very low intra-pair differential skew (5 ps typical) Very low inter-pair skew (< 180 ps) Switch/multiplexer position select CMOS input Single 3.3 V power supply Very low operation current of 0.2 mA typical ESD 8 kV HBM, 1 kV CDM ESD 2 kV HBM, 500 V CDM for control pins Available in 3 mm 6 mm, 0.4 mm pitch HVQFN32 packageCBTL04DP211 NXP Semiconductors DisplayPort 2 : 1 multiplexer 3. Applications Motherboard applications requiring (embedded) DisplayPort switching/multiplexing Docking stations Notebook computers Chip sets requiring flexible allocation of DisplayPort I/O pins to board connectors 4. Ordering information Table 1. Ordering information Type number Topside Package mark Name Description Version 1 CBTL04DP211BS L04DP211 HVQFN32 plastic thermal enhanced very thin quad flat package SOT1185-1 2 no leads 32 terminals body 3 6 0.85 mm 1 Industrial temperature range. 2 Total height after printed-circuit board mounting = 1 mm (maximum). CBTL04DP211 All information provided in this document is subject to legal disclaimers. NXP B.V. 2012. All rights reserved. Product data sheet Rev. 2 13 April 2012 2 of 18