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: 23/115页
文件大小: 756K
代理商: DS26334GN
DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
23 of 115
5.4.1 Transmit Line Templates
The DS26334 transmitters can be selected individually to meet the pulse masks for E1 and T1/J1 mode. The T1/J1
pulse mask is shown in the Transmit Pulse Template and can be configured on an individual LIU basis. The
transmit template is selected via the TS2-TS0 bits in the
TS
register. Transmit impedance matching is selected
using the TIMPOFF and the TIMPRM bits of the same register. When transmit impedance matching is enabled
TIMPRM will select between 75 and 120 impedance if an E1 template is selected, and between 100 and
110 impedance if a T1/J1 template is selected. In E1 mode, if 75
pulse amplitude will be 2.37V, if 120
is selected via the TIMPRIM bit, the output pulse amplitude will be 3.0V.
is selected via the TIMPRM bit, the output
The E1 pulse template is shown in
Figure 5-7
and the T1 pulse template is shown in
Figure 5-6
.
Table 5-4. Template Selections for Short-Haul Mode
TS2, TS1, TS0
000
001
010
011
100
101
110
111
APPLICATION
E1
Reserved
DSX-1 (0–133ft)
DSX-1 (133–266ft)
DSX-1 (266–399ft)
DSX-1 (399–533ft)
DSX-1 (533–655ft)
Table 5-5. Template Selections for Long-Haul Mode
TS2, TS1, TS0
000
001
010
011
100
101
110
APPLICATION
E1
Reserved
0dB CSU
-7.5dB CSU
-15dB CSU
-22dB CSU
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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