MAX4989 Maxim, MAX4989 Datasheet

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MAX4989

Manufacturer Part Number
MAX4989
Description
The MAX4989 is a bidirectional 2-of-4 USB 2
Manufacturer
Maxim
Datasheet
The MAX4989 is a bidirectional 2-of-4 USB 2.0 cross-
point switch. The MAX4989 features the low on-capaci-
tance and low on-resistance necessary to switch USB
2.0 low-/full-/Hi-Speed signals at data rates up to
480Mbps. This device allows any 2-of-4 USB pairs to
be connected together and is configured through a
simple 3-input control logic interface.
The MAX4989 operates from a single +2.7V to +5.5V
supply and features an internal charge pump to permit
full rail-to-rail swing. This device also features a high-
impedance shutdown mode to reduce supply current to
100nA (typ).
The MAX4989 is available in a 14-pin, 3mm x 3mm
TDFN package and operates over the extended -40°C
to +85°C temperature range.
19-4206; Rev 0; 8/08
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.
Notebook Computers
Cell Phones
USB 2.0 Hi-Speed 2-of-4 Crosspoint Switch
________________________________________________________________ Maxim Integrated Products
General Description
TOP VIEW
*EP = EXPOSED PAD. CONNECT EP TO GROUND.
Applications
GND
C0
C1
Y+
Y-
Z+
Z-
1
2
3
4
5
6
7
+
3mm x 3mm TDFN
MAX4989
o Single +2.7V to +5.5V Supply Voltage
o Low 1µA (typ) Supply Current
o -3dB Bandwidth: 1GHz (typ)
o Low 5Ω (typ) R
o High-Impedance Shutdown Mode
o Logic Inputs Control Signal Routing
o +1.8V CMOS-Logic Compatible
o Ultra-Small 14-Pin, 3mm x 3mm, TDFN Package
+ Denotes a lead-free/RoHS-compliant package.
* EP = Exposed pad.
MAX4989ETD+
*EP
PART
14
13
12
11
10
9
8
W-
W+
GND
X+
X-
V
C2
CC
-40°C to +85°C
TEMP RANGE
ON
Ordering Information
Pin Configuration
(3mm x 3mm)
14 TDFN-EP*
PACKAGE
PIN-
Features
T1433-2
CODE
PKG
1

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MAX4989 Summary of contents

Page 1

... This device also features a high- impedance shutdown mode to reduce supply current to 100nA (typ). The MAX4989 is available in a 14-pin, 3mm x 3mm TDFN package and operates over the extended -40°C to +85°C temperature range. Notebook Computers ...

Page 2

... For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 3

... Note 2: All devices are 100% production tested at T Note 3: IN and OUT refer to input and output terminals (W_, X_, Y_, Z_) of any switch configuration. Note 4: Not production tested. Guaranteed by design. Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured over specified analog signal ranges. _______________________________________________________________________________________ ...

Page 4

... OFF-ISOLATION IS MEASURED BETWEEN IN AND OFF TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN IN AND OUT TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. Figure 1. On-Loss, Off-Isolation, and Crosstalk MAX4989 ...

Page 5

... 50% IN PLHX OUT+ 50 50% V OUT PHLY Figure 3. Output Signal Skew, Rise/Fall Time, Propagation Delay _______________________________________________________________________________________ Test Circuits/Timing Diagrams (continued) MAX4989 OUT+ V OUT OUT 50% 50% t PHLX 50% 50% t PLHY ...

Page 6

USB 2.0 Hi-Speed 2-of-4 Crosspoint Switch (V = +3.3V +25°C, unless otherwise noted ON-RESISTANCE vs. INPUT VOLTAGE 6 10mA OUT 5 2.7V CC 5.0 4.5 4 5.5V CC 3.5 3.0 ...

Page 7

... GND with a 0.1µF ceramic capacitor as close as possible to CC The low on-resistance and low on-capacitance of the MAX4989 make it ideal for high-performance Hi-Speed USB 2.0 switching applications. The MAX4989 is ideal for routing USB data lines and for applications that require switching between multiple USB hosts or devices (Figure 4). ...

Page 8

... For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 14 TDFN is a registered trademark of Maxim Integrated Products, Inc. Applications Information +3.3V 0.1μ PERIPHERAL MAX4989 PERIPHERAL GND GPIO CONTROL Package Information PACKAGE CODE DOCUMENT NO. T1433-2 21-0137 ...

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