参数资料
| 型号： | DS21349DK |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN FOR DS21349 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电信，线路接口单元（LIU） |
| 已用 IC / 零件： | DS21349 |
| 已供物品： | 板 |
DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit
LINE-SIDE CONNECTIONS
The DS2149DK/DS21349DK implements the Tx and Rx line interface networks recommended in the DS2149 and
DS21349 data sheets and as shown in Figure 2 . To connect the DS2149DK/DS21349DK to T1 or J1 test
equipment, connect the equipment to the RJ48 connector or to the two bantam connectors, J2 and J3. Please
notice the relays disconnecting TTIP and TRING on T1 and T2. These relays disconnect the series resistors R4
and R5, which is recommended for some long-haul configurations. Pin 16 on the system connector serves as the
control line for the relays. When pin 16 is high, T2 is enabled with TTIP and TRING. When it is held low, T1 is
enabled with TTIP and TRING.
Figure 2. Line-Side Circuitry
J2
TRANSMIT
T1
C2
1 m F
TTIP
TRING
T2
R4
4.7 W
(1%)
R5
Dallas
Semiconductor
DS2149/DS21349
J3
RECEIVE
T3
4.7 W
(1%)
RTIP
R9
R8
50 W
(1%)
4 of 14
50 W
(1%)
RRING
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21349Q | 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Line Interface 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 |
| DS21349Q/T&R+ | 制造商:Maxim Integrated Products 功能描述:FRAMER J1/T1 3.3V 28PLCC - Tape and Reel |
| DS21349Q/T&R | 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 |
| DS21349Q+ | 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Line Interface 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 |
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