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CBTL04DP211 Datasheet

DisplayPort 2:1 multiplexer

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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 package


NXP Semiconductors Electronic Components Datasheet

CBTL04DP211 Datasheet

DisplayPort 2:1 multiplexer

No Preview Available !

NXP Semiconductors
CBTL04DP211
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
mark
Package
Name
CBTL04DP211BS[1] L04DP211 HVQFN32
Description
plastic thermal enhanced very thin quad flat package;
no leads; 32 terminals; body 3 × 6 × 0.85 mm[2]
[1] Industrial temperature range.
[2] Total height after printed-circuit board mounting = 1 mm (maximum).
Version
SOT1185-1
CBTL04DP211
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 April 2012
© NXP B.V. 2012. All rights reserved.
2 of 18


Part Number CBTL04DP211
Description DisplayPort 2:1 multiplexer
Maker NXP
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