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General Description
The MAX4927 meets the needs of high-speed differen-tial switching, including that of Gigabit Ethernet (10/100/1000) Ba-T switching as well as LVDS and LVPECL switching. The MAX4927 provides enhanced ESD protection up to ±15kV and excellent high-fre-quency respon,making the device especially uful for interfaces that must go to an outside connection.山药糕的做法
The MAX4927 offers extremely low capacitance (C ON ),as well as low on-resistance (R ON ), for low-inrtion loss and very wide bandwidth. In addition to the four pairs of DPDT switches, the MAX4927 provides LED switching for laptop computer/docking station u.
The MAX4927 is pin-to-pin equivalent to the PI3L500-A and STMUX1000L. The MAX4927 can replace either device in tho applications, improving ESD protection and eliminating external ESD components. The MAX4927 is available in a space-saving 56-pin TQFN package and operates over the extended -40°C to +85°C temperature range.
Applications
Notebooks and Docking Stations
Servers and Routers with Ethernet Interfaces Board-Level Redundancy Protection SONET/SDH Signal Routing T3/E3 Redundancy Protection LVDS and LVPECL Switching
Features
♦ESD Protection
±15kV–IEC 61000-4-2 Air-Gap Discharge ±8kV–IEC 61000-4-2 Contact Discharge ±15kV–Human Body Model
♦Single +3.0V to +3.6V Power-Supply Voltage ♦Low 4Ω(typ), 6.5Ω(max) On-Resistance (R ON )♦Ultra-Low 8pF (typ) On-Capacitance (C ON )♦-23dB Return Loss (100MHz)♦-3dB Bandwidth: 650MHz
♦Optimized Pin Out for Easy Transformer and PHY Interface
♦Built-In LED Switches for Switching Indicators to Docking Station ♦Low 450µA (max) Quiescent Current
♦Bidirectional 8 to 16 Multiplexer/Demultiplexer ♦Standard Pin Out, Matching the P13L500-A and STMUX1000L
♦Space-Saving Lead-Free Package
56-Pin, 5mm x 11mm, TQFN Package
MAX4927
1000 Ba-T , ±15kV ESD Protection LAN Switch
________________________________________________________________Maxim Integrated Products 1
茅台回收价格Ordering Information
19-0841; Rev 0; 6/07
For pricing, delivery, and ordering information,plea contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at
+Denotes lead-free package.安全着陆
耽美图片
Note:All devices are specified over the -40°C to +85°C operating temperature range.*EP = Expod pad.
Typical Operating Circuit and Functional Diagrams appear at end of data sheet.
Pin Configuration
M A X 4927
1000 Ba-T , ±15kV ESD Protection LAN Switch 2_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stress beyond tho listed under “Absolute Maximum Ratings” may cau permanent damage to the device. The are stress ratings only, and functional operation of the device at the or any other conditions beyond tho indicated in the operational ctions of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
V DD ………………………………………………………-0.3V to +4V All Other Pins…………………………………-0.3V to (V DD + 0.3V)Continuous Current (A_ to _B_)......................................±120mA Continuous Current (LED_ to _LED_).…………………… ±40mA Peak Current (A_ to _B_)
(puld at 1ms, 10% duty cycle) ……………………. ±240mA Current into Any ±20mA
Continuous Power Dissipation (T A = +70°C)刘氏庄园
56-Pin TQFN (derate 40.9mW/°C above +70°C).......5278mW 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
ELECTRICAL CHARACTERISTICS
(V DD = +3V to +3.6V, T A = T J = T MIN to T MAX , unless otherwi noted. Typical values are at V DD = 3.3V, T A = +25°C.) (Note 1)
MAX4927
1000 Ba-T ±15kV ESD Protection LAN Switch
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
父亲给儿子的一封信
(V DD = +3V to +3.6V, T A = T J = T MIN to T MAX , unless otherwi noted. Typical values are at V DD = 3.3V, T A = +25°C.) (Note 1)
Figure 1. Single-Ended Bandwidth, Crosstalk, and Off-Isolation
M A X 4927
银行员工入党申请书
1000 Ba-T , ±15kV ESD Protection LAN Switch 4_______________________________________________________________________________________
Figure 2. Turn-On and Turn-Off Times
Figure 3. Propagation Delay Times
Figure 4. Output Skew
MAX4927
1000 Ba-T , ±15kV ESD Protection LAN Switch
_______________________________________________________________________________________5
0214
3560
1.0
2.0
3.0ON-RESISTANCE vs. V A_
V A_ (V)
R O N (Ω)
810121462416182220240 1.00.5 1.5 2.0 2.5 3.0
LED_ ON-RESISTANCE vs. V LED_
V LED_ (V)江乡故人偶集客舍
R O N L E D (Ω)
0300
600
900
12001500
-40
10
-15
35
60
85
LEAKAGE CURRENT vs. TEMPERATURE
TEMPERATURE (°C)
L E A K A G E C U R R E N T (p A )
200
220240260280300320340
-40
-15
10
35
60
85
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
Q U I E S C E N T S U P P L Y C U R R E N T (μA )
SINGLE-ENDED INSERTION LOSS
vs. FREQUENCY
M A X 4927 t o c 05
FREQUENCY (MHz)
I N S E R T I O N L O S S (d B )
100
10
-7-8-9
-6-5-4-3-2-10
-10
1
1000
Typical Operating Characteristics
(V DD = 3.3V, T A = +25°C, unless otherwi noted.)
