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参数资料
| 型号： | MAX4891ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC ETHERNET SWITCH OCTAL 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 以太网开关 |
| 电路： | 8 x 2:1 |
| 导通状态电阻： | 5.5 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 3.6 V |
| 电流 - 电源： | 280µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 标准包装 |
| 其它名称： | MAX4891ETJ+TDKR |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4892EETX | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4892EETX+ | 功能描述:多路器开关 IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4892EETX+T | 功能描述:多路器开关 IC 10/100/1000 Base-T Ethernet LAN Switch RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4892EETX-T | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4892ETJ | 制造商:Maxim Integrated Products 功能描述:1000 BASE-T ETHERNET LAN SWITCH - Rail/Tube |
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