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| 型号： | DS26334DK |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 44/121页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN FOR DS26334 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 设计资源： | DS26334DK Gerber Files |
| 标准包装： | 1 |
| 主要目的： | 电信，线路接口单元（LIU） |
| 已用 IC / 零件： | DS26334 |
| 已供物品： | 板，线缆，电源 |
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DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
29 of 121
5.5.6.1
ANSI T1.231 for T1 and J1 Modes
For short-haul mode, loss is detected if the received signal level is less than 200mV for duration of 192 bit periods.
LOS is reset if the all of the following criteria are met:
24 or more ones are detected in 192-bit period with a detection threshold of 300mV measured
at RTIP and RRING.
During the 192 bits less than 100 consecutive zeros are detected.
8 consecutive zeros are not detected if B8ZS is set.
For long-haul mode, loss is detected if the received signal level is less than 30mV for duration of 192 bit periods.
LOS is reset if the all of the following criteria are met:
24 or more ones are detected in 192-bit period with a detection threshold of 40mV measured
at RTIP and RRING.
During the 192 bits less than 100 consecutive zeros are detected.
8 consecutive zeros are not detected if B8ZS is set.
5.5.6.2
ITU-T G.775 for E1 Modes
For short-haul mode, LOS is detected if the received signal level is less than 200mV for a continuous duration of
192 bit periods. LOS is reset if the receive signal level is greater than 300mV for a duration of 192 bit periods.
For long-haul mode, LOS is detected if the received signal level is less than 12mV for a continuous duration of 192
bit periods. LOS is reset if the receive signal level is greater than 20mV for a duration of 192 bit periods.
5.5.6.3
ETS 300 233 for E1 Modes
For short-haul mode, LOS is detected if the received signal level is less than 200mV for a continuous duration of
2048 (1ms) bit periods. LOS is reset if the receive signal level is greater than 300mV for a duration of 192 bit
periods.
For long-haul mode, LOS is detected if the received signal level is less than 12mV for a continuous duration of 192
bit periods. LOS is reset if the receive signal level is greater than 20mV for a duration of 192 bit periods.
5.5.7
AIS
Table 5-8 outlines the DS26334 AIS related specifications. Table 5-9 states the AIS functionality in the DS26334.
The registers related to the AIS detection are shown in Table 5-10.
Table 5-8. AIS Criteria ANSI T1.231, ITU-T G.775, and ETS 300 233 Specifications
CRITERIA
STANDARD
ITU-T G.775 for E1
ETS 300 233 for E1
ANSI T1.231 for T1
AIS
Detection
Criteria
2 or fewer zeros in each of 2
consecutive 512-bit stream
received.
Fewer than 3 zeros detected in
512 bit period.
Fewer than 9 zeros detected in
a 8192-bit period (a ones
density of 99.9% over a period
of 5.3ms) are received.
AIS
Clearance
Criteria
3 or more zeros in each of 2
consecutive 512-bit streams
received.
3 or more zeros in 512 bits
received.
9 or more zeros detected in a
8192-bit period are received.
Table 5-9. AIS Detection and Reset Criteria for DS26334
CRITERIA
STANDARD
ITU-T G.775 for E1
ETS 300 233 for E1
ANSI T1.231 for T1
AIS
Detection
Criteria
2 or fewer zeros in each of 2
consecutive 512-bit streams
received.
Fewer than 3 zeros detected in
512-bit period.
Fewer than 9 zeros contained
in 8192 bits.
AIS
Clearance
Criteria
3 or more zeros in each of 2
consecutive 512-bit streams
received.
3 or more zeros in 512 bits
received.
9 or more bits received in a
8192-bit stream.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS26334G | 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
| DS26334G+ | 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
| DS26334GA2 | 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
| DS26334GA2+ | 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
| DS26334GA3 | 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
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