CS8904 参数 Datasheet PDF下载

CS8904

水晶LAN ™四路以太网收发器

目录

1.0 INTRODUCTION.....................................................................................................3

1.1概述......................................................................................................... 3

1.2系统的应用........................................................................................................ 4

1.3主要特性和优势............................................. .................................................. 4

1.3.1低成本，低噪音，更多功能....................................... ............................. 4

2.0 PIN DESCRIPTION.................................................................................................7

2.1控制器接口.......................................................................................................... 8

2.2 10BASE -T接口........................................................................................................ 9

2.3 LED引脚.......................................................................................................................... 9

2.4总销..................................................................................................................... 9

操作3.0理论.............................................. ................................... 12

3.1 Overview........................................................................................................................ 12

3.2编码器/解码器（ ENDEC ） ........................................... ................................................ 12

3.2.1编码器................................................................................................................ 13

3.2.2运营商Detection................................................................................................... 13

3.2.3时钟和数据恢复........................................... .......................................... 13

3.3 10BASE -T Transceiver.................................................................................................. 13

3.3.1 10BASE -T滤波器........................................... .................................................. .... 14

3.3.2变送器............................................................................................................ 14

3.3.3接收器................................................................................................................ 14

3.3.4碰撞检测............................................. .................................................. 15

4.0功能说明............................................... ............................ 16

4.1复位和校准..................................................................................................... 16

4.1.1复位Operation..................................................................................................... 16

4.1.2允许时间复位........................................... ............................................ 16

4.2模式控制................................................................................................................. 16

4.3控制器接口........................................................................................................ 16

4.3.1发送和接收接口........................................... ................................. 16

4.3.2控制和状态信息........................................... .................................. 17

4.4外部时钟Oscillator............................................................................................... 19

5 SPECIFICATIONS................................................................................................. 20

绝对最大额定值............................................... .................................. 20

推荐工作条件............................................... .............. 20

DC CHARACTERISTICS................................................................................................... 20

数字输入/输出特性............................................. ............. 21

开关特性 - MODE 1 ............................................. ................... 22

开关特性 - MODE 2 ............................................. ................... 24

开关特性 - MODE 3 ............................................. ................... 26

开关特性 - MODE 4 ............................................. ................... 28

开关特性 - MODE 5 ............................................. ................... 30

10BASE -T特性.............................................. ........................................ 32

晶振要求............................................... ................... 32

6.0包装尺寸............................................... ..................................... 33

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