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参数资料
| 型号： | DS2180A+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/35页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCEIVER T1 40-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 10 |
| 功能： | 收发器 |
| 接口： | T1 |
| 电路数： | 1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 3mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 40-DIP（0.600"，15.24mm） |
| 供应商设备封装： | 40-PDIP |
| 包装： | 管件 |
| 包括： | 警报生成和检测，B7 填充模式，B8ZS 模式，错误检测和计数器，“硬件”模式，透明模式 |
| 产品目录页面： | 1429 (CN2011-ZH PDF) |
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DS2180A
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T1 OVERVIEW
Framing Standards
The DS2180A is compatible with the existing Bell System D4 framing standard described in ATT PUB
43801 and the new extended superframe format (ESF) as described in ATT C.B. #142. In this document,
D4 framing is referred to as 193S and ESF (also known as Fe) is referred to as 193E. Programmable
features of the DS2180A allow support of other framing standards which are derivatives of 193E and
193S. The salient differences between the 193S and 193E formats are the number of frames per
superframe and use of the F-bit position. In 193S, 12 frames make up a superframe, in 193E, 24. A frame
consists of 24 channels (timeslots) of 8-bit data preceded by an F-bit. Channel data is transmitted and
received MSB first.
F-Bits
The use of the F-bit position in 193S is split between the terminal framing pattern (know as FT-bits)
which pro-vides frame alignment information and the signaling framing pattern (known as FS-bits) which
provides multiframe alignment information. In 193E framing, the F-bit position is shared by the framing
pattern sequence (FPS) which provides frame and multiframe alignment information, a 4 kHz data link
known as FDL (Facility Data Link), and CRC (Cyclic Redundancy Check) bits. The FDL bits are used
for control and maintenance (inserted by the user at TLINK) and the CRC bits are an indicator of link
quality and may be monitored by the user to establish error performance.
Signaling
During frames 6 and 12 in 193S, A and B signaling information is inserted into the LSB of all channels
transmitted. In 193E, A and B data is inserted into frames 6 and 12 and C and D data is inserted into
frames 18 and 24. This allows a maximum of four signaling states to be transmitted per superframe in
193S and 16 states in 193E.
Alarms
The DS2180A supports all alarm pattern generation and detection required in typical Bell System
applications. These alarm modes are explained in ATT PUB 43801, ATT C.B. #142 and elsewhere in
this document.
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| DS2180A+ | 功能描述:网络控制器与处理器 IC T1 Transceiver 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 |
| DS2180AN | 功能描述:网络控制器与处理器 IC T1 Transceiver 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 |
| DS2180AQ | 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 |
| DS2180AQ/T&R | 制造商:Maxim Integrated Products 功能描述:T1 TRANSCEIVER-PLCC-TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TRANSCEIVER T1 44-PLCC 制造商:Maxim Integrated Products 功能描述:Network Controller & Processor ICs T1 Transceiver |
| DS2180AQ/T&R+ | 制造商:Maxim Integrated Products 功能描述:T1 TRANSCEIVER PLCC TRL LF - Tape and Reel |
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