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MAX4906FELB+T

P1-P3P4-P6P7-P9P10-P12P13-P14
General Description
The MAX4906/MAX4906F/MAX4907/MAX4907F analog
switches combine the low on-capacitance (C
ON
) and
low on-resistance (R
ON
) necessary for high-perfor-
mance switching applications. These devices are
designed for USB 2.0 high-speed applications at
480Mbps. These switches will also handle all the
requirements for USB low- and full-speed signaling.
The MAX4906/MAX4906F feature two single-pole/dou-
ble-throw (SPDT) switches, and the MAX4907/
MAX4907F feature two single-pole/single-throw switches
(SPST). The MAX4907/MAX4907F have a low 7Ω (max)
on-resistance and 7pF (max) on-capacitance. These
devices are fully specified to operate from a single
+3.0V to +3.6V power supply and are protected against
a +5.5V short to COM1 and COM2. This feature makes
them fully compliant with the USB 2.0 specification of
+5.5V fault protection. These devices feature a low
threshold voltage and a +1.4V V
IH
, permitting them to
be used with low-voltage logic. The MAX4906/
MAX4906F/MAX4907/MAX4907F operate at 300µA
(max) quiescent current and feature a shutdown input
to reduce the quiescent current to less than 2µA (max).
The MAX4906/MAX4906F/MAX4907/MAX4907F are avail-
able in space-saving, 2mm x 2mm µDFN packages and
operate over a -40°C to +85°C temperature range.
Applications
Features
♦ Fully Specified for a Single +3.0V to +3.6V
Power-Supply Voltage
♦ Low 4Ω (typ), 7Ω (max) On-Resistance (R
ON
)
♦ MAX4907/MAX4907F Ultra-Low 4pF (typ),
7pF (max) On-Capacitance (C
ON
)
♦ -3dB Bandwidth: 1GHz (typ)
♦ Low Bit-to-Bit Skew ≤ 100ps
♦ Shutdown Input Reduces Power Consumption
to 2µA (max)
♦ 3.3V, 1.8V, and 1.4V Logic Compatible
♦ COM
_
Analog Inputs Fault Protected Against
Shorts to USB Supply Rail Up to +5.5V
♦ Space-Saving Packages
8-Pin and 10-Pin, 2mm x 2mm µDFN Packages
MAX4906/MAX4606F/MAX4907/MAX4907F
High-/Full-Speed USB 2.0 Switches
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-3797; Rev 2; 1/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Note: All devices operate over the -40°C to +85°C operating
temperature range.
Selector Guide appears at end of data sheet.
PART PIN-PACKAGE PKG CODE
MAX4906ELB 10 µDFN L1022-1
MAX4906FELB 10 µDFN L1022-1
MAX4907ELA 8 µDFN L822-1
MAX4907FELA 8 µDFN L822-1
Cell Phones
PDAs
Digital Still Cameras
GPS
Notebook Computers
Relay Replacements
USB Switching
Ethernet Switching
Video Switching
Bus Switches
T3/E3 Switches for
Redundancy Protection
1
2
3
4
5
10
9
8
7
6
V+
NC1
NC2
NO1COM1
GND
SHDN/EN
IN
MAX4906
MAX4906F
μDFN
NO2COM2
TOP VIEW
Pin Configurations
EYE DIAGRAM
500ps/div
V+ =3.3V
I
BIAS = 9mA
f = 240MHz
USB 2.0
HIGH SPEED
TRANSMIT
TEMPLATE
V
NO1OUT
100mV/div
V
NO2OUT
Typical Operating Characteristics
Pin Configurations continued at end of data sheet.
High-/Full-Speed USB 2.0 Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V+ = +3V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+= 3.3V, T
A
= +25°C.) (Note 2)
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.
Note 1: Signals on IN, SHDN or SHDN/EN exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
Voltages Referenced to GND
V+ .............................................................................-0.3V to +4V
IN, SHDN, SHDN/EN (Note 1) ......................-0.3V to (V+ + 0.3V)
COM_, NO_, NC_ ..................................................-0.5V to +5.5V
Continuous Current (COM_ to NO_/NC_) ......................±120mA
Peak Current, (COM_ to NO_/NC_)
(pulsed at 1ms 10% duty cycle).................................±240mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µDFN (derate 5.0mW/°C above +70°C) .............400mW
10-Pin µDFN (derate 5.3mW/°C above +70°C) ........423.7mW
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
MAX4906/MAX4606F/MAX4907/MAX4907F
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
COM
_,V
NO_
,
V
NC _
SHDN or SHDN/EN = 0 (Note 3) 0 V+ V
Fault-Protection Trip Threshold V
FP
3.6 4.0 V
T
A
= +25°C 4 7
On-Resistance R
ON
I
COM_
= -40mA,
0V ≤ V
COM_
≤ V+,
SHDN or SHDN/EN = 0
T
A
= T
MIN
to T
MAX
8
Ω
T
A
= +25°C 4 10
On-Resistance During Shutdown
R
ONSH
I
C OM _
= - 40m A,
0V ≤ V
C OM _
≤ 1.5V ,
S H D N = V +
( M AX 4907/M AX 4907F)
T
A
= T
MIN
to T
MAX
13
Ω
T
A
= +25°C 0.7 1.2
On-Resistance Match Between
Channels
ΔR
ON
V+ = 3.0V,
I
COM_
= -40mA,
V
COM_
= 1.5V (Note 4)
T
A
= T
MIN
to T
MAX
1.5
Ω
On-Resistance Flatness
R
FLAT
(
ON
)
V+ = 3.0V, I
COM_
= -40mA,
V
COM_
= 1.5V, 3.0V (Note 5)
1.0 Ω
Off-Leakage Current
I
COM_
(
OFF
)
V+ = 3.6V, V
COM_
= 0.3V, 3.3V;
V
NO_
or V
NC_
= 3.3V, 0.3V
-1 +1 µA
On-Leakage Current
I
COM_
(
ON
)
V+ = 3.6V, V
COM
= 0.3V, 3.3V;
V
NO_
or V
NC_
= 0.3V, 3.3V, or floating
-1 +1 µA
SWITCH AC PERFORMANCE
On-Channel -3dB Bandwidth BW R
L
= R
S
= 50Ω, signal = 0dBm, Figure 1
1000
MHz
f = 10MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= R
S
= 50Ω, Figure 1
-60
f = 250MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= R
S
= 50Ω, Figure 1
-32
Off-Isolation V
ISO
f = 500MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= R
S
= 50Ω, Figure 1
-26
dB
MAX4906/MAX4606F/MAX4907/MAX4907F
High-/Full-Speed USB 2.0 Switches
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +3V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
f = 10MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= R
S
= 50Ω, Figure 1
-59
f = 250MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= R
S
= 50Ω, Figure 1
-31
Crosstalk (Note 6) V
CT
f = 500MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= R
S
= 50Ω, Figure 1
-25
dB
SWITCH DYNAMICS
NO_, NC_ Off-Capacitance C
(OFF)
f = 1MHz, Figure 2 (Note 7) 2 4 pF
MAX4906ELB,
MAX4906FELB
69
Switch On-Capacitance C
(ON)
f = 1MHz, Figure 2
(Note 7)
MAX4907ELA,
MAX4907FELA
47
pF
MAX4906ELB,
MAX4906FELB
0.4
Switch On-Capacitance Matching
C
ONM
f = 1MHz (Note 7)
MAX4907ELA,
MAX4907FELA
0.3
pF
Turn-On Time t
ON
V
N O
_, V
N C
_ = 1.5V ; R
L
= 300Ω , C
L
= 35p F,
V
IH
= V + , V
IL
= 0V , S H D N or S H D N /EN = 0V ,
Fi g ur e 3
60 ns
Turn-Off Time t
OFF
V
NO
_, V
NC
_ = 1.5V; R
L
= 300Ω, C
L
= 35pF,
V
IH
= V+, V
IL
= 0V, SHDN or SHDN/EN = 0V,
Figure 3; T
A
= +25°C
30 ns
Propagation Delay
t
PLH_
,t
PHL
R
L
= R
S
= 50Ω, Figure 4
0.25
ns
Fault-Protection Response Time t
FP
V
COM_
= 0 to 5V step,
R
L
= R
S
= 50Ω, Figure 5
3.0 µs
Fault-Protection Recovery Time t
FPR
V
COM_
= 5V to 3V step,
R
L
= R
S
= 50Ω, Figure 5
2µs
Output Skew Between Switches t
SK(o)
Skew between switch 1 and switch 2, R
L
=
R
S
= 50Ω, Figure 4 (Note 7)
50 100 ps
Output Skew Same Switch t
SK(p)
Skew between opposite transitions in same
switch, R
L
= R
S
= 50Ω, Figure 4 (Note 7)
50 100 ps
P1-P3P4-P6P7-P9P10-P12P13-P14

MAX4906FELB+T

Mfr. #:
Buy MAX4906FELB+T
Manufacturer:
Maxim Integrated
Description:
USB Switch ICs Full-Speed USB 2.0 Switch
Lifecycle:
New from this manufacturer.
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