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參數(shù)資料
| 型號(hào)： | DS21Q41BT |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 28/61頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FRAMER T1 QUAD 128-TQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 72 |
| 控制器類型： | T1 調(diào)幀器 |
| 接口： | 并行/串行 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電流 - 電源： | 30mA |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 128-LQFP |
| 供應(yīng)商設(shè)備封裝： | 128-LQFP（14x20） |
| 包裝： | 管件 |
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DS21Q41B
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states that no more than five 1s should be transmitted in a row so that the data does not resemble an
opening or closing flag (01111110) or an abort signal (11111111). If enabled via CCR2.4, the DS21Q41B
will automatically look for five 1s in a row.
If it finds such a pattern, it will automatically insert a 0 after the five ones. The CCR2.4 bit should always
be set to a 1 when the DS21Q41B is inserting the FDL. More on how to use the DS21Q41B in FDL
applications is covered in a separate Application Note.
TFDL: TRANSMIT FDL REGISTER (Address=7E Hex)
(MSB)
(LSB)
TFDL7
TFDL6
TFDL5
TFDL4
TFDL3
TFDL2
TFDL1
TFDL0
SYMBOL
POSITION
NAME AND DESCRIPTION
TFDL7
TFDL.7
MSB of the FDL code to be transmitted
TFDL0
TFDL.0
LSB of the FDL code to be transmitted
The Transmit FDL Register (TFDL) contains the Facility Data Link (FDL) information that is to be
inserted on a byte basis into the outgoing T1 data stream. The LSB is transmitted first.
7.0 SIGNALING OPERATION
The robbed bit signaling bits in embedded in the T1 stream can be extracted from the receive stream and
inserted into the transmit stream by the DS21Q41B. There is a set of 12 registers for the receive side
(RS1 to RS12) and 12 registers on the transmit side (TS1 to TS12). The signaling registers are detailed
below. The CCR1.5 bit is used to control the robbed signaling bits as they appear at RSER. If CCR1.5 is
set to 0, then the robbed signaling bits will appear at RSER in their proper position as they are received. If
CCR1.5 is set to a 1, then the robbed signaling bit positions will be forced to a 1 at RSER.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q41-BT | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS21Q41BT+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q41BT+T | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21Q41BTN | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad T1 Framer |
| DS21Q41-BTN | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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