参数资料
| 型号： | XRT73LC00AIVTR |
| 厂商： | Exar Corporation |
| 文件页数： | 24/61页 |
| 文件大小： | 0K |
| 描述： | IC LIU STS1/DS3/E3 SGL 44TQFP |
| 标准包装： | 1,000 |
| 类型： | 线路接口装置（LIU） |
| 驱动器/接收器数： | 1/1 |
| 规程： | DS3，E3，STS-1 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LQFP |
| 供应商设备封装： | 44-TQFP（10x10） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页
XRT73LC00A
27
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.0.2
searches the Transmit Binary Data Stream from the Transmit Logic Block for the occurrence of three (3)
consecutive zeros (“000”). If the B3ZS Encoder finds an occurrence of three consecutive zeros, it substitutes
these three “0’s” with either a "00V" or a "B0V" pattern.
“B” represents a Bipolar pulse that is compliant with the Alternating Polarity requirements of the AMI (Alternate
Mark Inversion) line code and “V” represents a bipolar Violation (e.g., a bipolar pulse that violates the
Alternating Polarity requirements of the AMI line code).
The B3ZS Encoder decides whether to substitute with either a "00V" or a "B0V" pattern to insure that an odd
number of bipolar pulses exist between any two consecutive violation pulses.
Figure 14 illustrates the B3ZS Encoder at work with two separate strings of three (or more) consecutive zeros.
2.3.2
HDB3 Encoding
If the XRT73LC00A is configured to operate in the E3 Mode, then the HDB3/B3ZS Encoder block operates in
the HDB3 Mode. When the Encoder is operating in this mode, it parses through and searches the Transmit
Data Stream from the Transmit Logic Block for the occurrence of four (4) consecutive zeros (“0000”). If the
HDB3 Encoder finds an occurrence of four consecutive zeros, then it substitutes these four “0’s” with either a
“000V” or a “B00V” pattern to insure that an odd number of bipolar pulses exist between any two consecutive
violation pulses.
Figure 15 illustrates the HDB3 Encoder at work with two separate strings of four (or more) consecutive zeros.
2.3.3
Enabling/Disabling the HDB3/B3ZS Encoder
The XRT73LC00A allows two methods to enable or disable the HDB3/B3ZS Encoder.
If the XRT73LC00A is operating in the Hardware Mode.
To enable the HDB3/B3ZS Encoder, set the ENDECDIS input pin (pin 21) to “0”. To disable the HDB3/B3ZS
Encoder, set the ENDECDIS input pin (pin 21) to “1”.
FIGURE 14. AN EXAMPLE OF B3ZS ENCODING
FIGURE 15. AN EXAMPLE OF HDB3 ENCODING
TClk
TPOS
SR data
Encoded
PDATA
Encoded
NDATA
10
0
1
01
0
1
0
00
1
0
1
0
1
0
00
1
00
01
0
00
0
1
11
1
000
00
0
1
0
01
1
10
1
0
10
1
0
1
Line signal
BV
0
V
0
TClk
TPOS
SR data
Encoded
PDATA
Encoded
NDATA
100
1
01
00
1
0
00
1
0
1
0
1
0
00
1
00
01
0
00
0
1
11
1
00
000
0
1
0
01
1
10
1
0
10
1
0
1
Line signal
BV
0
V
0
相关PDF资料 |
PDF描述 |
|---|---|
| IDT72V3641L15PFG8 | IC SYNCFIFO 1024X36 15NS 120TQFP |
| IDT72V3641L15PF8 | IC SYNCFIFO 1024X36 15NS 120TQFP |
| VI-B61-IV-F2 | CONVERTER MOD DC/DC 12V 150W |
| VE-BNX-MY | CONVERTER MOD DC/DC 5.2V 50W |
| VI-B4Z-IV-B1 | CONVERTER MOD DC/DC 2V 60W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT73LC00AIVTR-F | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| XRT73LC00IV | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73LC03A | 制造商:EXAR 制造商全称:EXAR 功能描述:3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC03A_08 | 制造商:EXAR 制造商全称:EXAR 功能描述:3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73LC03AES | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。