XRT73LC04A
4路DS3 / E3 / STS - 1线路接口单元
修订版1.0.1
1.0选择数据传输速率............................................................................................................... 25
1.1 C
ONFIGURING
C
HANNEL
(
N
) ............................................................................................................ 25
表2 ：十六进制地址和XRT73LC04A命令寄存器的位格式............................ 26
表3：选择的数据率信道（ n）的经由E3_ （n）和STS-1 / DS3_ （n）的输入引脚（硬件模式）
27
C
OMMAND
R
EGISTER
， CR 4 - （
N
) ........................................................................................................... 27
表4：选择的数据率信道（ n）的，通过在STS -1 / DS3_ （ n）和E3_ （n）的所述AP-内的位字段
propriate命令寄存器（主机模式） ........................................... .......................................... 27
2.0发射部分...................................................................................................................... 28
2.1 T
HE
T
RANSMIT
L
逻辑
B
LOCK
......................................................................................................... 28
从终端设备接收双轨道数据......................................... .......................... 28
图14.典型的接口进行数据的双轨形式从发送端子传输
minal设备到一个信道的发送部分......................................... ........................... 28
图15。 XRT73LC04A样品的TPData和TNData输入引脚................................ 28中的数据
从终端设备接收单轨道数据......................................... ....................... 29
C
OMMAND
R
EGISTER
CR3-(
N
) ............................................................................................................ 29
在TPData和TXCLK输入Sgnals图16。行为，而发送逻辑块是接受了正弦
GLE轨数据从终端设备.......................................... ........................................... 29
2.2 T
HE
T
RANSMIT
C
LOCK
D
UTY
C
YCLE
A
DJUST
C
IRCUITRY
................................................................. 29
2.3 T
HE
HDB3 / B3ZS ê
NCODER
B
LOCK
............................................................................................... 29
B3ZS编码.................................................................................................................................. 29
B3ZS编码图17.An示例......................................................................................................三十
HDB3编码.................................................................................................................................三十
HDB3编码图18.An示例.....................................................................................................三十
禁用HDB3 / B3ZS编码器............................................ .................................................. ..... 30
C
OMMAND
R
EGISTER
CR3-(
N
) ............................................................................................................ 31
2.4 T
HE
T
RANSMIT
P
ULSE
S
哈平
C
IRCUITRY
....................................................................................
图有创业的Bellcore GR- 499 -CORE发射输出脉冲模板DS3应用....................
图20.The的Bellcore GR- 253 -CORE发射输出脉冲模板SONET STS - 1的应用...
使传输线构建出电路.......................................... ...........................................
31
31
32
32
C
OMMAND
R
EGISTER
， CR1- （
N
) ........................................................................................................... 32
禁用传输线路构建出电路.......................................... .......................................... 32
C
OMMAND
R
EGISTER
， CR1- （
N
) ........................................................................................................... 33
设计指南设定传输线路构建出电路....................................... ...............
发送线打造出电路和E3应用........................................ ..........................
2.5 I
NTERFACING的
T
RANSMIT
S
的作者ECTIONS
XRT73LC04A
对
L
INE
...................................
图21.Recommended原理图接口的XRT73LC04A到线路的发送部分。
33
33
33
33
T
RANSFORMER
R
ECOMMENDATIONS
.................................................................................................... 34
3.0接收部分......................................................................................................................... 35
3.1 I
NTERFACING的
R
ECEIVE
S
的作者ECTIONS
XRT73LC04A
对
L
INE
..................................... 35
图22.Recommended原理图的接口的XRT73LC04A到行接收部分（反
前者耦合） .............................................................................................................................. 35
3.2 T
HE
R
ECEIVE
E
QUALIZER
B
LOCK
................................................................................................... 36
图23.The典型应用的系统安装程序........................................ .................................... 36
准则设置接收均衡器............................................ ....................................... 36
II
