參數(shù)資料
型號: MAX4891ETJ+
廠商: Maxim Integrated Products
文件頁數(shù): 1/17頁
文件大小: 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: 60
功能: 以太網(wǎng)開關(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: 管件
General Description
The MAX4890/MAX4891/MAX4892 high-speed analog
switches meet the needs of 10/100/1000 Base-T appli-
cations. These devices switch the signals from two
interface transformers and connect the signals to a sin-
gle 10/100/1000 Base-T Ethernet PHY, simplifying
docking station design and reducing manufacturing
costs. The MAX4890/MAX4891/MAX4892 can also
route signals from a common interface transformer to
two different boards in board-redundancy applications.
The MAX4890/MAX4891/MAX4892 switches provide an
extremely low capacitance and on-resistance to meet
Ethernet insertion and return-loss specifications. The
MAX4891/MAX4892 feature one and three built-in LED
switches, respectively.
The MAX4890/MAX4891/MAX4892 are available in
space-saving 32- and 36-lead TQFN packages,
significantly reducing the required PC board area.
These devices operate over the -40°C to +85°C tem-
perature range.
Applications
Notebooks and Docking Stations
Servers and Routers with Ethernet Interfaces
Board-Level Redundancy Protection
SONET/SDH Signal Routing
T3/E3 Redundancy Protection
Video Switching
Features
Single +3.0V to +3.6V Power-Supply Voltage
Low On-Resistance (RON): 4Ω (typ), 6.5Ω (max)
Ultra-Low On-Capacitance (CON): 6.5pF (typ)
Low < 200ps Bit-to-Bit Skew
-3dB Bandwidth: 1GHz
Optimized Pin-Out for Easy Transformer and PHY
Interface
Built-In LED Switches for Switching Indicators to
Docking Station
Low 450A (max) Quiescent Current
Bidirectional 8 to 16 Multiplexer/Demultiplexer
Space-Saving Packages
32-Pin, 5mm x 5mm, TQFN Package
36-Pin, 6mm x 6mm, TQFN Package
MAX4890/MAX4891/MAX4892
10/100/1000 Base-T Ethernet LAN Switch
________________________________________________________________
Maxim Integrated Products
1
32
31
30
29
28
27
26
9
101112131415
18
19
20
21
22
23
24
7
6
5
4
3
2
1
MAX4890
TQFN
TOP VIEW
A3
A2
N.C.
A4
8
A5
A
1
A
0
V
+
S
EL
0B
1
1B
1
0B
2
25
1B
2
2B1
3B1
2B2
3B2
4B1
5B1
4B2
17
5B2
*EP = EXPOSED PAD. CONNECT EP TO GND OR LEAVE UNCONNECTED
7B
1
6B
2
16
6B
1
7B
2
N
.C
.
G
N
D
A
7
A
6
*EP
Pin Configurations
Ordering Information
19-3577; Rev 2; 8/07
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.
PART
PIN-PACKAGE
LED SWITCHES
MAX4890ETJ
32 TQFN-EP*
MAX4891ETJ
32 TQFN-EP*
1
MAX4892ETX
36 TQFN-EP*
3
Note: All devices are specified for operation in the -40°C to
+85°C temperature range.
*
EP = Exposed pad.
Functional Diagrams and Typical Operating Circuit appear
at end of data sheet.
Pin Configurations continued at end of data sheet.
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MAX4891ETJ+ 功能描述:多路器開關(guān) IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻(最大值):7 Ohms 開啟時間(最大值): 關(guān)閉時間(最大值): 傳播延遲時間: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+T 功能描述:多路器開關(guān) IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻(最大值):7 Ohms 開啟時間(最大值): 關(guān)閉時間(最大值): 傳播延遲時間: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-T 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻(最大值):7 Ohms 開啟時間(最大值): 關(guān)閉時間(最大值): 傳播延遲時間: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
MAX4892EETX 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻(最大值):7 Ohms 開啟時間(最大值): 關(guān)閉時間(最大值): 傳播延遲時間: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
MAX4892EETX+ 功能描述:多路器開關(guān) IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻(最大值):7 Ohms 開啟時間(最大值): 關(guān)閉時間(最大值): 傳播延遲時間: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