Multiplexer/demultiplexer switch - NXP
Description
CBTL05023
Multiplexer/demultiplexer switch for Thunderbolt applications
Rev.
5 — 15 July 2013
Product data sheet
1.
General description
The CBTL05023 is a multiplexer/demultiplexer switch chip for DisplayPort v1.
2 signals and the control signals of a 10 Gbit/s channel.
The 10 Gbit/s channel does not pass through this switch.
This chip provides BIASOUT output control signal, and the DC-biasing pull-down resistors to facilitate an external 10 Gbit/s channel.
The AUX MUX is a 2 : 1 switch with CA_DETect pin selecting between AUX and DDC (Direct Display Control) signals.
The DP MUX is a 2 : 1 switch that selects between DPML (DisplayPort Main Link) and LSTX/LSRX signals.
This chip also includes three control signal buffers: HPDOUT, CA_DETOUT and BIASOUT.
CBTL05023 is powered by a 3.
3 V supply and it is available in 3 mm 3 mm HVQFN24 package with 0.
4 mm pitch.
2.
Features and benefits
2.
1 AUX MUX 2 : 1 switch
This 2 : 1 switch is controlled by CA_DET signal multiplexing of the 1 Mbit/s differential AUX and DDC (Direct Display Control) signals When CA_DET is HIGH, DDC path is selected
Differential AUX channel: Low insertion loss: 0.
5 dB at 5 MHz Low return loss: 19 dB at 5 MHz Low ON-state resistance: 7.
5 Bandwidth: 5 GHz Low off-state isolation: 75 dB at 5 MHz Low crosstalk: 40 dB at 5 MHz Common-mode input voltage VIC: 0 V to 3.
3 V Differential input voltage VID: 1.
4 V (maximum)
DDC channel has DDC_CLK and DDC_DAT I2C signals 100 kHz 3.
3 V voltage swing
Both AUXIO+ and AUXIO outputs have 900 (20 %) pull-down resistor that is enabled by the status of the BIASOUT output pin These pull-down resistors provide DC bias for the 10 Gbit/s channel
NXP Semiconductors
CBTL05023
Multiplexer/demultiplexer switch for Thunderbolt applications
2.
2 DP MUX 2 : 1 switch
The DP MUX is a 2:1 switch that is controlled by DP_PD pin multiplexing of a differential DPML signal and LSTX/LSRX signals The DPML (DisplayPort Main Link) runs up to HBR...
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