参数资料
| 型号： | DS2149Q+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/32页 |
| 文件大小： | 0K |
| 描述： | IC LIU T1/J1 5V 28-PLCC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 37 |
| 类型： | 线路接口装置（LIU） |
| 规程： | T1/J1 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-LCC（J 形引线） |
| 供应商设备封装： | 28-PLCC（11.51x11.51） |
| 包装： | 管件 |
| 产品目录页面： | 1429 (CN2011-ZH PDF) |
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DS2149
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11. NETWORK INTERFACE
Transformer specifications are listed in Table 11-A and Table 11-B. Table 11-C illustrates the series
resistance necessary for the basic interface and is associated with different transformer turns ratios.
Smaller turns ratios result in lower power-supply requirements. However, series resistance provides
added protection from potentially damaging voltages that can occur during lightning strikes. A basic
network interface is illustrated in Figure 11-1. For a complete discussion of network interface design,
refer to Application Note 324: T1/E1 Network Interface Design.
Table 11-A. Specifications for Receive Transformer
SPECIFICATION
RECOMMENDED VALUE
Turns Ratio (all applications)
1:1 ±2%
Primary Inductance
600
mH minimum
Leakage Inductance
1.0
mH maximum
Interwinding Capacitance
40pF maximum
Receive Transformer DC Resistance
Primary (Device Side)
Secondary
1.2 maximum
Table 11-B. Specifications for Transmit Transformer
SPECIFICATION
RECOMMENDED VALUE
Turns Ratio, 5V
1:2 ±2%
Primary Inductance
600
mH minimum
Leakage Inductance
1.0
mH maximum
Interwinding Capacitance
40pF maximum
Transmit Transformer DC Resistance
Primary (Device Side)
Secondary
1.0 maximum
2.0 maximum
Table 11-C. Transformer Turns Ratio vs. Series Resistance
XFMR2
(CR4.1)
XFMR1
(CR4.0)
OPERATING
VOLTAGE
(V)
APPLICATION
N
Rt ()
Long/Short
1:2
0
5.0
D4
1:2
0
1:1.15
0
Long/Short
1:2
9.1
0
1
5.0
D4
1:2
0
1:2
4:3
Long/Short
1:1.6
0
1:2
4.3
1
0
5.0
D4
1:1.6
0
1:1.15
0
Long/Short
1:2
9.1
1
5.0
D4
1:2
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2149Q/T&R | 制造商:Maxim Integrated Products 功能描述:5V T1/E1 LIU T&R COMM - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LINE INTERFACE 5V T1/E1 PLCC |
| DS2149Q/T&R+ | 制造商:Maxim Integrated Products 功能描述:FRAMER J1/T1 5V 28PLCC - Tape and Reel |
| DS2149Q/T&R | 功能描述:网络控制器与处理器 IC 5V 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 |
| DS2149Q+ | 功能描述:网络控制器与处理器 IC 5V 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 |
| DS2149Q+T&R | 制造商:Maxim Integrated Products 功能描述:FRAMER J1/T1 5V 28PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LIU T1/J1 5V 28-PLCC |
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