參數(shù)資料
型號(hào)： MAX4890EETJ+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/13頁(yè)
文件大?。?/td> 0K
描述： IC ETHERNET SWITCH OCTAL 32TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
功能： 以太網(wǎng)開(kāi)關(guān)
電路： 8 x 2:1
導(dǎo)通狀態(tài)電阻： 5.5 歐姆
電壓電源： 單電源
電壓 - 電源，單路/雙路(±)： 3 V ~ 3.6 V
電流 - 電源： 280µA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 32-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 32-TQFN-EP（5x5）
包裝： 帶卷 (TR)
General Description
The MAX4890E/MAX4892E meet the needs of high-speed
differential switching. The devices handle the needs of
Gigabit Ethernet (10/100/1000) Base-T switching as
well as LVDS and LVPECL switching. The MAX4890E/
MAX4892E provide enhanced ESD protection up to
±15kV, and excellent high-frequency response, making
the devices especially useful for interfaces that must go to
an outside connection.
Both devices provide extremely low capacitance
(CON), as well as low resistance (RON), for low-insertion
loss and very wide bandwidth. In addition to the four
pairs of DPDT switches, the MAX4892E provides LED
switching for laptop computer/docking station use.
The MAX4890E/MAX4892E are pin-for-pin equivalents
to the MAX4890/MAX4892 and can replace these
devices for those applications requiring the enhanced
ESD protection. Both devices are available in space-
saving TQFN packages and operate over the standard
-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
o ±15kV ESD Protected Per MIL-STD-883, Method
3015
o Single +3.0V to +3.6V Power-Supply Voltage
o Low On-Resistance (RON): 4 (typ), 6.5 (max)
o Ultra-Low On-Capacitance (CON): 8pF (typ)
o -23dB Return Loss (100MHz)
o -3dB Bandwidth: 650MHz
o Optimized Pin Out for Easy Transformer and PHY
Interface
o Built-In LED Switches for Switching Indicators to
Docking Station (MAX4892E)
o Low 450A (max) Quiescent Current
o Bidirectional 8 to 16 Multiplexer/Demultiplexer
o Standard Pin Out, Matching the MAX4890 and
MAX4892
o Space-Saving Lead-Free Packages
32-Pin, 5mm x 5mm, TQFN Package
36-Pin, 6mm x 6mm, TQFN Package
MAX4890E/MAX4892E
1000 Base-T, ±15kV ESD Protection LAN Switches
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-0624; Rev 0; 8/06
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.
PART
PIN-
PACKAGE
LED
SWITCHES
PKG
CODE
MAX4890EETJ+
32 TQFN-EP*
—
T-3255-4
MAX4892EETX+
36 TQFN-EP*
3
T-3666-3
+Denotes lead-free package.
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
*EP = Exposed pad.
Typical Operating Circuit and Functional Diagrams appear
at end of data sheet.
Eye Diagram
CH2: 4B2, 100mV/div
CH1: 5B2, 100mV/div
f = 125MHz
Pin Configurations
SEL
2B1
2B2
3B2
4B2
5B2
4B1
5B1
3B1
A3
LED0
0LED1
A4
A5
A6
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
1LED2
7B2
6B2
6B1
1LED1
LED1
GND
A7
MAX4892E
TOP VIEW
0LED2
7B1
A2
A0
0B2
V+
LED2
2LED1
2LED2
0B1
1B1
1B2
TQFN
*EP
*EXPOSED PAD CONNECTED TO GND.
+
Pin Configurations continued at end of data sheet.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4890ETJ 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX4890ETJ+ 功能描述:多路器開(kāi)關(guān) IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX4890ETJ+T 功能描述:多路器開(kāi)關(guān) IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX4890ETJ-T 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX4891ETJ 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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