Datasheet > CBTL05023

CBTL05023

更新时间： 2024-11-16 12:51:59

品牌	Logo	应用领域
恩智浦 - NXP		复用器开关
页数	文件大小	规格书
4页	107K
描述
Multiplexer/demultiplexer switch for Thunderbolt applications

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CBTL05023 数据手册

CBTL05023

Multiplexer/demultiplexer switch for Thunderbolt applications

Rev. 2 — 15 August 2012

Product brief

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 Ω

 Bandwidth: 5 GHz

 Low off-state isolation: −75 dB at 5 MHz

 Low crosstalk: −40 dB at 5 MHz

 Common-mode input voltage V_IC: 0 V to 3.3 V

 Differential input voltage V_ID: 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 Ω ( 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

12 3 4

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