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參數(shù)資料

型號(hào)：	DS2154LN
廠商：	Maxim Integrated Products
文件頁(yè)數(shù)：	43/87頁(yè)
文件大?。?/td>	0K
描述：	IC TXRX E1 1CHIP 5V ENH 100-LQFP
產(chǎn)品培訓(xùn)模塊：	Lead (SnPb) Finish for COTS
產(chǎn)品變化通告：	Product Discontinuation 20/Feb/2012
標(biāo)準(zhǔn)包裝：	90
類型：	收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)：	1/1
規(guī)程：	E1
電源電壓：	4.75 V ~ 5.25 V
安裝類型：	表面貼裝
封裝/外殼：	100-LQFP
供應(yīng)商設(shè)備封裝：	100-LQFP（14x14）
包裝：	管件

DS2154

48 of 87

Each Transmit Signaling Register (TS1 to TS16) contains the CAS bits for two timeslots that will be

inserted into the outgoing stream if enabled to do so via TCR1.5. On multiframe boundaries, the DS2154

will load the values present in the Transmit Signaling Register into an outgoing signaling shift register

that is internal to the device. The user can use the Transmit Multiframe bit in Status Register 2 (SR2.5) to

know when to update the signaling bits. The bit will be set every 2ms and the user has 2ms to update the

TSRs before the old data will be retransmitted. ITU specifications recommend that the ABCD signaling

not be set to all 0s because they will emulate a CAS multiframe alignment word.

The TS1 register is special because it contains the CAS multiframe alignment word in its upper nibble.

The upper nibble must always be set to 0000 or else the terminal at the far end will lose multiframe

synchronization. If the user wishes to transmit a multiframe alarm to the far end, then the TS1.2 bit

should be set to a 1. If no alarm is to be transmitted, then the TS1.2 bit should be cleared. The three

remaining bits in TS1 are the spare bits. If they are not used, they should be set to 1. In CCS signaling

mode, TS1 to TS16 can also be used to insert signaling information. Via the SR2.5 bit, the user will be

informed when the signaling registers need to be loaded with data. The user has 2ms to load the data

before the old data will be retransmitted.

Via the CCR3.6 bit, the user has the option to use the Transmit Channel Blocking Registers (TCBRs) to

determine, on a channel-by-channel basis, which signaling bits are to be inserted via the TSRs (the

corresponding bit in the TCBRs = 1) and which are to be sourced from the TSER or TSIG pin (the

corresponding bit in the TCBRs = 0). See the Transmit Data Flow diagram (Figure 14-11) for more

details.

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
DS2154LN+	功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced E1 Transceiver 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
DS2154LNA2	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
DS2154LNA2+	功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced E1 Transceiver 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
DS2154LND2	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
DS2154LND2+	制造商:Maxim Integrated Products 功能描述:ENHANCED E1 SCT LQFP REVD2 IND LF - Rail/Tube

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