參數資料
型號: DS2154LN
廠商: Maxim Integrated Products
文件頁數: 24/87頁
文件大?。?/td> 0K
描述: IC TXRX E1 1CHIP 5V ENH 100-LQFP
產品培訓模塊: Lead (SnPb) Finish for COTS
產品變化通告: Product Discontinuation 20/Feb/2012
標準包裝: 90
類型: 收發(fā)器
驅動器/接收器數: 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
供應商設備封裝: 100-LQFP(14x14)
包裝: 管件
DS2154
30 of 87
4.4 Power-Up Sequence
On power-up, after the supplies are stable, the DS2154 should be configured for operation by writing to
all of the internal registers (this includes the Test Registers) since the contents of the internal registers
cannot be predicted on power-up. Next, the LIRST (CCR5.7) bit should be toggled from 0 to 1 to reset
the line interface circuitry (it will take the DS2154 about 40ms to recover from the LIRST bit being
toggled). Finally, after the RSYSCLK and TSYSCLK inputs are stable, the ESR bit should be toggled
from a 0 to a 1 and then back to 0 (this step can be skipped if the elastic stores are not being used). Both
TCLK and RCLKI must be present for the parallel control port to operate properly.
4.5 Automatic Alarm Generation
When either CCR2.4 or CCR2.5 is set to 1, the DS2154 monitors the receive side to determine if any of
the following conditions are present: loss of receive frame synchronization, AIS alarm (all 1s) reception,
or loss of receive carrier (or signal). If any one (or more) of the above conditions is present, then the
DS2154 will either force an AIS alarm (if CCR2.5 = 1) or a Remote Alarm (CCR2.4 = 1) to be
transmitted via the TPOSO and TNEGO pins. It is an illegal state to have both CCR2.4 and CCR2.5 set to
1 at the same time. If CCR2.4 = 1, then RAI will be transmitted according to ETS 300 011 specifications
and a constant Remote Alarm will be transmitted if the DS2154 cannot find CRC4 multiframe
synchronization within 400ms as per G.706.
相關PDF資料
PDF描述
M83723/86R8036 CONN PLUG 3POS STRAIGHT W/SCKT
VE-B6W-MY-S CONVERTER MOD DC/DC 5.5V 50W
MS27484E12F35SA CONN PLUG 22POS STRAIGHT W/SCKT
MS3108A36-52S CONN PLUG 52POS RT ANG W/SCKT
VE-B6V-MY-S CONVERTER MOD DC/DC 5.8V 50W
相關代理商/技術參數
參數描述
DS2154LN+ 功能描述:網絡控制器與處理器 IC Enhanced E1 Transceiver RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2154LNA2 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2154LNA2+ 功能描述:網絡控制器與處理器 IC Enhanced E1 Transceiver RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2154LND2 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數量: 數據速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風格: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