MAX4928BETN 查看數據表（PDF） - Maxim Integrated

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MAX4928BETN

DisplayPort/PCIe Passive Switches

Maxim Integrated 

19-4030; Rev 1; 8/08

DisplayPort/PCIe Passive Switches

General Description

The MAX4928A/MAX4928B high-speed passive switch-

es route PCI Express® (PCIe) data and/or DisplayPort™

signals between two possible destinations in desktop or

laptop PCs. The MAX4928A is intended to be used with

the ATX form factor desktop PCs, while the MAX4928B

is expected to be used in the BTX form factor.

The MAX4928A/MAX4928B are hex double-pole/dou-

ble-throw (6 x DPDT) switches. The MAX4928A/

MAX4928B feature a single digital control input (SEL) to

switch signal paths and a latch input (LE) that holds the

switches in a given state.

The MAX4928A/MAX4928B are fully specified to oper-

ate from a single +3.3V (typ) power supply. The

MAX4928A/MAX4928B are available in an industry

standard 5mm x 11mm, 56-pin TQFN package. Both

devices operate over the -40°C to +85°C extended

temperature range.

Applications

Desktop PCs

Notebook PCs

PCI Express is a registered trademark of PCI-SIG.

DisplayPort is a trademark of Video Electronics Standards

Association (VESA).

TOP VIEW

GND 1

IN0+ 2

IN0- 3

IN1+ 4

IN1- 5

VDD 6

IN2+ 7

IN2- 8

IN3+ 9

IN3- 10

GND 11

OUT+ 12

OUT- 13

X+ 14

X- 15

GND 16

VDD 17

SEL 18

LE 19

GND 20

56 55 54 53 52 51 50 49

MAX4928A

*EP

21 22 23 24 25 26 27 28

48 GND

47 TX2+

46 TX2-

45 TX3+

44 TX3-

43 D0+

42 D0-

41 D1+

40 D1-

39 D2+

38 D2-

37 D3+

36 D3-

35 GND

34 VDD

33 RX0+

32 RX0-

31 RX1+

30 RX1-

29 GND

Features

♦ Single +3.3V Power Supply Voltage

♦ Supports PCIe Gen I, Gen II, and DisplayPort

Data Rates > 5Gbps

♦ Excellent Return Loss > 12dB at 2.5GHz

♦ Six Bidirectional Pairs of Switches

All Switching in One Device

♦ Low 850µA (max) Supply Current

♦ Small 5mm x 11mm, 56-Pin TQFN Package

♦ Industry-Standard Pinouts

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAX4928AETN+ -40°C to +85°F

56 TQFN-EP

MAX4928BETN+ -40°C to +85°F

56 TQFN-EP

+Denotes a lead-free package/RoHS-Compliant package.

EP = Exposed paddle.

Typical Operating Circuit appears at end of data sheet.

Pin Configurations

GND 1

SEL 2

LE 3

IN0+ 4

IN0- 5

VDD 6

IN1+ 7

IN1- 8

IN2+ 9

IN2- 10

GND 11

IN3+ 12

IN3- 13

OUT+ 14

OUT- 15

GND 16

VDD 17

X+ 18

X- 19

GND 20

56 55 54 53 52 51 50 49

MAX4928B

*EP

21 22 23 24 25 26 27 28

48 GND

47 D2+

46 D2-

45 D3+

44 D3-

43 TX0+

42 TX0-

41 TX1+

40 TX1-

39 TX2+

38 TX2-

37 TX3+

36 TX3-

35 GND

34 VDD

33 AUX+

32 AUX-

31 HPD1

30 HPD2

29 GND

*CONNECT EXPOSED PADDLE TO GND.

TQFN

TQFN

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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