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| 型号： | DS26503 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | T1/E1/J1/64KCC BITS Element |
| 中文描述： | T1/E1/J1 BITS单元 |
| 文件页数： | 10/123页 |
| 文件大小： | 995K |
| 代理商： | DS26503 |
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DS26503 T1/E1/J1 BITS Element
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Table 2-2. E1-Related Telecommunications Specifications
ITUT G.703 Physical/Electrical Characteristics of G.703 Hierarchical Digital Interfaces
Defines the 2048kbps bit rate—2048 ±50ppm; the transmission media are 75 coax or 120 twisted
pair; peak-to-peak space voltage is ±0.237V; nominal pulse width is 244ns.
Return loss 51Hz to 102Hz is 6dB; 102Hz to 3072Hz is 8dB; 2048Hz to 3072Hz is 14dB.
Nominal peak voltage is 2.37V for coax and 3V for twisted pair.
The pulse template for E1 is defined in G.703.
ITUT G.736 Characteristics of Synchronous Digital Multiplex Equipment operating at 2048kbps
The peak-to-peak jitter at 2048kbps has to be less than 0.05 UI at 20Hz to 100Hz.
Jitter transfer between 2.048 synchronization signal and 2.048 transmission signal is provided.
ITUT G.742 Second-Order Digital Multiplex Equipment Operating at 8448kbps
The DS26503 jitter attenuator is complaint with Jitter transfer curve for sinusoidal jitter input.
ITUT G.772
This specification provides the method for using receiver for transceiver 0 as a monitor for the remainder
of the seven transmitter/receiver combinations.
ITUT G.775
A LOS detection criterion is defined.
ITUT G.823 The control of jitter and wander within digital networks, which are based on 2.048kbps
hierarchy
G.823 provides the jitter amplitude tolerance at different frequencies, specifically 20Hz, 2.4kHz, 18kHz,
and 100kHz.
ETSI 300 233
This specification provides LOS and AIS signal criteria for E1 mode.
Pub 62411
This specification has tighter jitter tolerance and transfer characteristics than other specifications.
The jitter transfer characteristics are tighter than G.736 and jitter tolerance is tighter then G.823.
(ITU) “Synchronous Frame Structures used at 1544, 6312k, 2048, 8488, and 44,736kbps Hierarchical
Levels”
(ITU) “Frame Alignment and Cyclic Redundancy Check (CRC) Procedures Relating to Basic Frame
Structures Defined in Recommendation G.704”
(ITU) “Characteristics of primary PCM Multiplex Equipment Operating at 2048kbps”
(ITU) Characteristics of a synchronous digital multiplex equipment operating at 2048kbps”
(ITU) “Loss Of Signal (LOS) and Alarm Indication Signal (AIS) Defect Detection and Clearance
Criteria”
(ITU) “The Control of Jitter and Wander Within Digital Networks Which are Based on the 2048kbps
Hierarchy”
(ITU) “Primary Rate User-Network Interface – Layer 1 Specification”
(ITU) “Error Performance Measuring Equipment Operating at the Primary Rate and Above”
(ITU) “In-service code violation monitors for digital systems”
(ETSI) “Integrated Services Digital Network (ISDN); Primary rate User-Network Interface (UNI); Part
1/ Layer 1 specification”
(ETSI) “Transmission and multiplexing; Physical/electrical characteristics of hierarchical digital
interfaces for equipment using the 2048kbps-based plesiochronous or synchronous digital hierarchies”
(ETSI) “Integrated Services Digital Network (ISDN); Access digital section for ISDN primary rate”
(ETSI) “Integrated Services Digital Network (ISDN); Attachment requirements for terminal equipment
to connect to an ISDN using ISDN primary rate access”
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS26503_07 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:T1/E1/J1 BITS Element |
| DS26503DK | 功能描述:时钟和定时器开发工具 DS26503 Dev Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Modules 类型:Clock Conditioners 工具用于评估:LMK04100B 频率:122.8 MHz 工作电源电压:3.3 V |
| DS26503L | 功能描述:计时器和支持产品 E1-T1-J1 Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| DS26503L+ | 功能描述:计时器和支持产品 E1-T1-J1 Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| DS26503LN | 功能描述:计时器和支持产品 E1-T1-J1 Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
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