參數(shù)資料
型號(hào)： DS2149Q+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 17/32頁(yè)
文件大小： 0K
描述： IC LIU T1/J1 5V 28-PLCC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 37
類型： 線路接口裝置（LIU）
規(guī)程： T1/J1
電源電壓： 4.75 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 28-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 28-PLCC（11.51x11.51）
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1429 (CN2011-ZH PDF)
DS2149
24 of 32
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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:網(wǎng)絡(luò)控制器與處理器 IC 5V T1/J1 Line Interface 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
DS2149Q+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V T1/J1 Line Interface 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
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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