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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