MAX4928AETN+T Maxim Integrated Products, MAX4928AETN+T Datasheet

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MAX4928AETN+T

Manufacturer Part Number
MAX4928AETN+T
Description
IC DISPLAY-PORT/PCIE SW 56-TQFN
Manufacturer
Maxim Integrated Products
Series
PCI Express®(PCIe), DisplayPort™r
Type
Passive Switchesr
Datasheet
1.MAX4928AETN.pdf (13 pages)

Specifications of MAX4928AETN+T

Applications
Desktop, Notebook PCs
Mounting Type
Surface Mount
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX4928A/MAX4928B high-speed passive switch-
es route PCI Express
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.
19-4030; Rev 1; 8/08
PCI Express is a registered trademark of PCI-SIG.
DisplayPort is a trademark of Video Electronics Standards
Association (VESA).
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.
Desktop PCs
Notebook PCs
*CONNECT EXPOSED PADDLE TO GND.
TOP VIEW
________________________________________________________________ Maxim Integrated Products
®
(PCIe) data and/or DisplayPort™
General Description
OUT+
OUT-
GND
IN0+
IN1+
IN2+
IN3+
GND
GND
GND
IN0-
IN1-
IN2-
IN3-
V
V
SEL
DD
X+
DD
LE
X-
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
DisplayPort/PCIe Passive Switches
56 55
21 22 23 24 25 26 27 28
Applications
54 53
MAX4928A
TQFN
52 51 50 49
*EP
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
GND
TX2+
TX2-
TX3+
TX3-
D0+
D0-
D1+
D1-
D2+
D2-
D3+
D3-
GND
V
RX0+
RX0-
RX1+
RX1-
GND
DD
♦ Single +3.3V Power Supply Voltage
♦ Supports PCIe Gen I, Gen II, and DisplayPort
♦ Excellent Return Loss > 12dB at 2.5GHz
♦ Six Bidirectional Pairs of Switches
♦ Low 850µA (max) Supply Current
♦ Small 5mm x 11mm, 56-Pin TQFN Package
♦ Industry-Standard Pinouts
+ Denotes a lead-free package/RoHS-Compliant package.
EP = Exposed paddle.
Typical Operating Circuit appears at end of data sheet.
OUT+
OUT-
GND
IN0+
IN1+
IN2+
GND
IN3+
GND
GND
IN0-
IN1-
IN2-
IN3-
SEL
V
V
MAX4928AETN+
MAX4928BETN+
X+
LE
DD
DD
X-
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Data Rates > 5Gbps
All Switching in One Device
PART
56 55
21 22 23 24 25 26 27 28
54 53
MAX4928B
TQFN
52 51 50 49
*EP
-40°C to +85°F
-40°C to +85°F
TEMP RANGE
Ordering Information
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
Pin Configurations
GND
D2+
D2-
D3+
D3-
TX0+
TX0-
TX1+
TX1-
TX2+
TX2-
TX3+
TX3-
GND
V
AUX+
AUX-
HPD1
HPD2
GND
DD
PIN-PACKAGE
56 TQFN-EP
56 TQFN-EP
Features
1

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MAX4928AETN+T Summary of contents

Page 1

... GND *CONNECT EXPOSED PADDLE TO GND. ________________________________________________________________ Maxim Integrated Products 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. ♦ Single +3.3V Power Supply Voltage ♦ Supports PCIe Gen I, Gen II, and DisplayPort Data Rates > 5Gbps ♦ ...

Page 2

DisplayPort/PCIe Passive Switches ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) V ...........................................................................-0.3V to +4V DD LE, SEL, IN_, X_, OUT_, D_, TX_, HPD_, RX_, AUX_ (Note 1) ...............................................-0. ...

Page 3

DisplayPort/PCIe Passive Switches ELECTRICAL CHARACTERISTICS (continued +3.3V ±10 MIN MAX noted.) (Note 3) PARAMETER D_ or TX_/ I HPD_ or RX1_/ AUX_ or RX0_ Off-Leakage I Current I I IN_/X_/OUT_ On-Leakage Current ...

Page 4

DisplayPort/PCIe Passive Switches ELECTRICAL CHARACTERISTICS (continued +3.3V ±10 MIN MAX noted.) (Note 3) PARAMETER Signal Data Rate Differential -3dB Bandwidth LOGIC INPUT (LE, SEL) Input Logic-High Input Logic-Low Input Logic Hysteresis Input ...

Page 5

DisplayPort/PCIe Passive Switches (T = +25°C, unless otherwise noted.) A ON-RESISTANCE vs IN_ X_ OUT_ 10 3.3V DD 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 -0.1 0.1 0.3 0.5 0.7 ...

Page 6

DisplayPort/PCIe Passive Switches MAX4928A/MAX4928B +3. IN_, X_ TX_, OR OUT_ HPD_ RX1_, AUX_ OR RX0_ SEL LOGIC GND LE INPUT SEL C INCLUDES FIXTURE AND STRAY CAPACITANCE ...

Page 7

DisplayPort/PCIe Passive Switches +3.3V 0.1μ IN_+ V SEL DD X_ OUT_+ 50Ω D_+ IN_- MAX4928A 50Ω X_- MAX4928B D_- OUT_- 50Ω HPD_+ 50Ω TX_+ HPD_- RX1_+ RX0_+ 50Ω AUX_+ 50Ω TX_- AUX_- RX1_- RX0_- GND DIFFERENTIAL ...

Page 8

DisplayPort/PCIe Passive Switches PIN MAX4928A MAX4928B 1, 11, 16, 20, 21, 1, 11, 16, 20, 21, 28, 29, 35, 48, 28, 29, 35, 48, 49 17, 22, 27, ...

Page 9

DisplayPort/PCIe Passive Switches PIN MAX4928A MAX4928B — — Detailed Description The MAX4928A/MAX4928B high-speed passive switches route PCI Express (PCIe) data and/or DisplayPort signals between two possible destinations. The MAX4928A/ MAX4928B ...

Page 10

DisplayPort/PCIe Passive Switches LE SEL X_ TO RX1_, OUT_ TO RX0_ DON'T CARE. 10 ______________________________________________________________________________________ Functional Diagram/Truth Table IN0+ IN0- IN1+ IN1- IN2+ IN2- IN_ TO TX_, IN_ TO DO_ ...

Page 11

DisplayPort/PCIe Passive Switches MAX4928A MAX4928B GRAPHICS AND MEMORY CONTROLLER HUB IN0+ PCIe BUFF 1 IN0- IN1+ PCIe BUFF 2 IN1- IN2+ PCIe BUFF 3 IN2- IN3+ PCIe BUFF 4 IN3- X+ PCIe IN X- ...

Page 12

DisplayPort/PCIe Passive Switches For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 56 TQFN-EP 12 ______________________________________________________________________________________ Package Information PACKAGE CODE T56511-1 DOCUMENT NO. 21-0187 ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...

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