参数资料
型号: DS26334GN
英文描述: 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interface Unit
中文描述: 3.3伏,16路,E1/T1/J1短,长途线路接口单元
文件页数: 37/115页
文件大小: 756K
代理商: DS26334GN
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
37 of 115
5.9.3.2
Receive Repetitive Pattern Synchronization
Repetitive pattern synchronization synchronizes the receive pattern generator to the incoming repetitive pattern.
The receive pattern generator is synchronized by searching each incoming data stream bit position for the
repetitive pattern, and then checking the next 32 data stream bits. Synchronization is achieved if all 32 bits match
the incoming pattern. If at least six incoming bits in the current 64-bit window do not match the receive PRBS
pattern generator, automatic pattern re-synchronization is initiated. Automatic pattern re-synchronization can be
disabled.
See Figure 5-14 for the repetitive pattern synchronization state diagram.
Figure 5-14. Repetitive Pattern Synchronization State Diagram
Sync
Match
Verify
1 bit error
Pattern Matches
3 i ihueos
6o6 i ihros
5.9.3.3
Receive Pattern Monitoring
Receive pattern monitoring monitors the incoming data stream for both an OOS condition and bit errors and counts
the incoming bits. An Out Of Synchronization (OOS) condition is declared when the synchronization state machine
is not in the “Sync” state. An OOS condition is terminated when the synchronization state machine is in the “Sync”
state.
Bit errors are determined by comparing the incoming data stream bit to the receive pattern generator output. If they
do not match, a bit error is declared, and the bit error and bit counts are incremented. If they match, only the bit
count is incremented. The bit count and bit error count are not incremented when an OOS condition exists.
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DS26334GN+ 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
DS26334GNA2 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
DS26334GNA2+ 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
DS26334GNA3 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
DS26334GNA3+ 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