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MAX14998 PDF даташит

Спецификация MAX14998 изготовлена ​​​​«Maxim Integrated Products» и имеет функцию, называемую «Two-Lane and Four-Lane DisplayPort Passive Switches».

Детали детали

Номер произв MAX14998
Описание Two-Lane and Four-Lane DisplayPort Passive Switches
Производители Maxim Integrated Products
логотип Maxim Integrated Products логотип 

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MAX14998 Даташит, Описание, Даташиты
19-5033; Rev 0; 10/09
www.DataSheet4U.com
Two-Lane and Four-Lane DisplayPort Passive
Switches with Separate AUX/HPD Control
General Description
The MAX4998/MAX14998 high-speed passive switches
route DisplayPort™ between two possible destinations
or vice versa in laptops or desktop PCs. The MAX4998/
MAX14998 are intended to be used where ultra-high-
speed performance and minimal input capacitance is
required.
The MAX4998 has three double-pole/double-throw
(DPDT) switches and one single-pole/double-throw
(SPDT) switch. Two DPDT switches are for high-frequen-
cy switching, one DPDT switch is for AUX, and the one
SPDT switch is for HPD. The two high-frequency switches
are selected by SEL1, and the AUX and HPD are selected
by SEL2. This part is suitable for two-lane DisplayPort
switching.
The MAX14998 has six double-pole/double-throw (DPDT)
switches. Four DPDT switches are for high-frequency
switching, and two DPDT switches are for AUX and HPD.
The four high-frequency switches are selected by SEL1,
and the AUX and HPD are selected by SEL2. This part is
suitable for four-lane DisplayPort switching.
The MAX4998/MAX14998 are fully specified to operate
from a single +3.3V (typ) power supply. The MAX4998
is available in a 3.5mm x 5.5mm, 28-pin TQFN package
with exposed pad, and the MAX14998 is available in a
3.5mm x 9mm, 42-pin TQFN package with exposed pad.
Both devices operate over the -40NC to +85NC extended
temperature range.
Notebook PCs
Desktop PCs
Applications
Features
S Single 3.3V Power-Supply Voltage
S 5GHz Bandwidth
S Support 1.6/2.7Gbps DisplayPort Signals
S Excellent Return Loss -14dB at 1.35GHz
S Independent High Frequency: AUX Select
S Designed for AC-Coupled Circuits
S Pass Throughs Are Maintained
S Low 850µA (max) Supply Current
S Small Packages
3.5mm x 5.5mm, 28-Pin TQFN Package with
Exposed Pad
3.5mm x 9mm, 42-Pin TQFN Package with
Exposed Pad
S Flow-Through Layout for Easy Board Layout
S ESD Protection for All I/O Pins: Human Body
Model (HBM) Q4kV
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX4998ETI+T
-40NC to +85NC 28 TQFN-EP**
MAX14998ETO+T* -40NC to +85NC 42 TQFN-EP**
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*Future Product. Contact factory for availability.
**EP = Exposed Pad.
Typical Operating Circuit appears at end of data sheet.
DisplayPort is a trademark of Video Electronics Standards
Association (VESA).
________________________________________________________________ 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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MAX14998 Даташит, Описание, Даташиты
www.DataSheet4U.com
Two-Lane and Four-Lane DisplayPort Passive
Switches with Separate AUX/HPD Control
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND, unless otherwise noted.)
VDD..........................................................................-0.3V to +4V
SEL1, SEL2, COM_, NO_, NC_ (Note 1).....-0.3V to +(VDD + 0.3)V
|VCOM_ - VNO_|, |VCOM_ - VNC_| (Note 1)...................... 0 to +2V
Continuous Current (COM_ to NO_/NC_)........................ Q70mA
Peak Current (COM_ to NO_/NC_)
(pulsed at 1ms, 10% duty cycle)................................. Q70mA
Continuous Current (SEL1, SEL2)................................... Q30mA
Peak Current (SEL1, SEL2)
(pulsed at 1ms, 10% duty cycle)................................. Q70mA
Continuous Power Dissipation (TA = +70NC)
28-Pin TQFN (derate 28.6mW/NC above +70NC).......2285mW
42-Pin TQFN (derate 34.5mW/NC above +70NC).......2758mW
Operating Temperature Range........................... -40NC to +85NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................ -65NC to +150NC
Package Junction-to-Ambient Thermal Resistance (BJA) (Note 2)
28-Pin TQFN.................................................................35NC/W
42-Pin TQFN.................................................................29NC/W
Package Junction-to-Case Thermal Resistance (BJC) (Note 2)
28-Pin TQFN................................................................2.7NC/W
42-Pin TQFN...................................................................2NC/W
Lead Temperature (soldering, 10s).................................+300NC
Note 1: Signals on COM_, NO_, NC_, SEL1, and SEL2 exceeding VDD or GND are clamped by internal diodes. Limit forward-
diode current to the maximum current rating.
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a
4-layer board. 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.
ELECTRICAL CHARACTERISTICS
(VDD = +3.3V Q10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = +3.3V, TA = +25NC, unless otherwise
noted.) (Note 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
Voltage Between COM_ and
NO_/NC_
On-Resistance
SYMBOL
CONDITIONS
VCOM_, VNO_,
VNC_
|VCOM_ - VNO_|,
|VCOM_ - VNC_|
RON
ICOM_ = 15mA;
VNO_, VNC_ = 0V, +1.2V
MIN TYP MAX UNITS
(VDD -
1.8)
V
0 1.8 V
7I
On-Resistance Match
Between Pairs of Same
Channel
DRON
VDD = +3.0V; ICOM_ = 15mA; VNO_,
VNC_ = 0V (Notes 4, 5)
0.1 2
I
On-Resistance Match
Between Channels
On-Resistance Flatness
NO_ or NC_ Off-Leakage
Current
COM_ On-Leakage
Current
DIGITAL SIGNALS
SEL1 and SEL2 to Switch
Turn-On Time
DRON
RFLAT(ON)
INO_(OFF)
INC_(OFF)
ICOM_(ON)
VDD = +3.0V; ICOM_ = 15mA; VNO_,
VNC_ = 0V (Notes 4, 5)
VDD = +3.0V; ICOM_ = 15mA; VNO_,
VNC_ = 0V, +1.2V (Notes 5, 6)
VDD = +3.6V; VCOM_ = 0V, +1.2V;
VNO_ or VNC_ = +1.2V, 0V
VDD = +3.6V; VCOM_ = 0V, +1.2V;
VNO_ or VNC_ = VCOM_ or unconnected
-1
-1
tON_SEL
VNO_ or VNC_ = +1.0V, RL = 50I,
CL = 100pF (Figure 1)
1.0 4
0.3 1.5
1
1
45 120
I
I
FA
FA
ns
2   _______________________________________________________________________________________









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MAX14998 Даташит, Описание, Даташиты
www.DataSheet4U.com
Two-Lane and Four-Lane DisplayPort Passive
Switches with Separate AUX/HPD Control
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +3.3V Q10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = +3.3V, TA = +25NC, unless otherwise
noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SEL1 and SEL2 to Switch
Turn-Off Time
Differential Insertion Loss
Differential Crosstalk
Differential Return Loss
Signal Data Rate
Differential -3dB Bandwidth
Differential Off-Isolation
LOGIC INPUT (SEL1, SEL2)
Input Logic-High
Input Logic-Low
Input Logic Hysteresis
Input Leakage Current
POWER SUPPLY
Power-Supply Range
VDD Supply Current
tOFF_SEL
SDD21
SDDCTK
SDD11
BR
f-3BW
SDD21_OFF
VNO_ or VNC_ = +1.0V, RL = 50I,
CL = 100pF (Figure 1)
f = 0.8GHz (Figure 2)
f = 1.35GHz (Figure 2)
f = 0.8GHz (Figure 2)
f = 1.35GHz (Figure 2)
f = 0.8GHz (Figure 2)
f = 1.35GHz (Figure 2)
RS = RL = 100I balanced
RS = RL = 100I balanced
f = 1.35GHz (Figure 2)
VIH
VIL
VHYST
IIN
VSEL_ = 0V or VDD
VDD
IDD
VSEL_ = 0V or VDD
5 50 ns
-0.67
-0.95
-37
-34
-20
-14
17
8.5
-28
dB
dB
dB
Gbps
GHz
dB
1.4
0.5
100
-1 +1
V
V
mV
FA
3.0 3.6
500 850
V
FA
Note 3: All units are 100% production tested at TA = +85NC. Limits over the operating temperature range are guaranteed by
design and characterization and are not production tested.
Note 4: DRON = RON(MAX) - RON(MIN).
Note 5: Guaranteed by design. Not production tested.
Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Test Circuits/Timing Diagrams
+3.3V
VDD
MAX4998/MAX14998
VN_ NO_ OR NC_
COM_
LOGIC
INPUT
SEL
SEL_
GND
RL
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
( )VOUT = VN_
RL
RL + RON
Figure 1. Switching Time
VOUT
CL
LOGIC
INPUT
SEL_
VIH
VIL
SWITCH
OUTPUT
COM_
0V
SWITCH
OUTPUT
COM_
0V
tr < 5ns
tf < 5ns
50%
VOUT 0.9 x VOUT
tON_SEL
tOFF_SEL
0.9 x VOUT
tOFF_SEL
0.9 x VOUT
0.9 x VOUT
tON_SEL
_______________________________________________________________________________________   3










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Номер в каталогеОписаниеПроизводители
MAX14998(MAX14998 / MAX14999) Two-Lane and Four-Lane DisplayPort Passive SwitchesMaxim Integrated Products
Maxim Integrated Products
MAX14998Two-Lane and Four-Lane DisplayPort Passive SwitchesMaxim Integrated Products
Maxim Integrated Products
MAX14999(MAX14998 / MAX14999) Two-Lane and Four-Lane DisplayPort Passive SwitchesMaxim Integrated Products
Maxim Integrated Products

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