CBTL12131ET datasheet(3/29 Pages) NXP

Part #	CBTL12131ET

Description	DisplayPort multiplexer for bidirectional video in all-in-one computer systems

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Manufacturer	NXP [NXP Semiconductors]

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CBTL12131

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Product data sheet

Rev. 1 — 25 February 2011

3 of 28

NXP Semiconductors

CBTL12131

DisplayPort multiplexer for bidirectional video

Integrated high-ohmic pull-down (4.7 M

Ω) and switchable 100 kΩ and 500 kΩ

resistors for Port B AUX bias control

2.5 Equalizer

Programmable equalizer for channel loss compensation from Port B to Port D

(external source mode)

Five levels of input equalization (including flat)

Two levels of output pre-emphasis (including flat)

Two output voltage swing levels

Three quinary input control pins allow equalization, pre-emphasis and output voltage

swing selection by simple board strapping

2.6 General

Power supply 3.3 V

± 10 %

Low active mode supply current of 30 mA typical (Dual-through mode)

Active mode supply current of 120 mA typical (External source mode, EQ = on)

ESD resilience to 4 kV HBM, 1 kV CDM

Available in TFBGA64 6 mm

× 6 mm package

3.

Typical system configuration

4.

Ordering information

Fig 1.

CBTL12131 in typical system configuration

002aae673

INTERNAL

DISPLAY

PANEL

(sink)

DP or ++DP

EXTERNAL

DISPLAY

(sink)

DP

NOTEBOOK

(source)

GPU2

SECONDARY

VIDEO

(source)

GPU1

PRIMARY

VIDEO

(source)

DP

CONNECTOR

DisplayPort

eDP

CONNECTOR

DisplayPort

PORT D

PORT B

CBTL12131

PORT C

PORT A

dual

through mode

dual

through mode

external

source mode

DisplayPort

Table 1.

Ordering information

Type number

Package

Name

Description

Version

CBTL12131ET

TFBGA64

plastic thin fine-pitch ball grid array package; 64 balls; body 6

× 6 × 0.8 mm

SOT543-1

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