参数资料
型号: WJLXT384LEB1
厂商: CORTINA SYSTEMS INC
元件分类: 数字传输电路
英文描述: DATACOM, PCM TRANSCEIVER, PQFP144
封装: 20 X 20MM, ROHS COMPLIANT, LQFP-144
文件页数: 29/140页
文件大小: 1514K
代理商: WJLXT384LEB1
124
Document Number: 248994
Revision Number: 005
Revision Date: November 28, 2005
Intel LXT384 Octal T1/E1/J1 S/H PCM Transceiver with JA
13.0
Mask Specifications
This chapter discusses the specifications for the mask into which the LXT384 Transceiver
transmitter output pulses must fit. The mask specification has two parts.
Part 1 (Table 74) lists specifications on how the pulse relates to load resistance.
Part 2 (Figure 31) shows the border limits (the mask template) into which the pulse must fit.
Note:
For information on pulse shaping, see Section 6.4.2, “Transmitter Pulse Shaping”.
Table 74. ITU G.703 2.048 Mbit/s Pulse Mask Specifications
Parameter
Twisted-
Pair Cable
Coaxial
Cable
Unit
Test load impedance
120
75
Ω
Nominal peak voltage for a mark
3.00
2.37
V
Nominal peak voltage for a space
0 ± 0.300
0 ± 0.237
V
Nominal pulse width
244
ns
Ratio (in terms of percentage) of the positive mark amplitude to the
negative mark amplitude, with both marks referenced to a space
95 to 105
Ratio
in %
Figure 31. E1, ITU G.703 Mask Template
(244 + 25)
194 ns
(244 – 50)
244 ns
219 ns
(244 – 25)
(244 + 244)
10%
0%
50%
V = 100%
Nominal pulse
Note: V corresponds to the nominal peak value.
10%
20%
488 ns
10%
20%
269 ns
相关PDF资料
PDF描述
WJLXT385LEB1 DATACOM, PCM TRANSCEIVER, PQFP144
WJLXT385LEB1 DATACOM, PCM TRANSCEIVER, PQFP144
WJLXT386LEB2 DATACOM, PCM TRANSCEIVER, PQFP100
WJLXT386LEB2 DATACOM, PCM TRANSCEIVER, PQFP100
WJLXT388LEB2 DATACOM, PCM TRANSCEIVER, PQFP100
相关代理商/技术参数
参数描述
WJLXT386LE.B2 功能描述:IC TRANS QUAD T1/E1/J1 100-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP(0.300",7.62mm) 供应商设备封装:16-PDIP 包装:管件
WJLXT6155LE.B5 制造商:Intel 功能描述:SONET/SDH/ATM Transceiver 1TX 1RX 64-Pin LQFP
WJLXT6155LE.B5-866255 功能描述:TXRX SDH/SONET/ATM HS 64-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422,RS485 电源电压:4.75 V ~ 5.25 V 安装类型:通孔 封装/外壳:8-DIP(0.300",7.62mm) 供应商设备封装:8-PDIP 包装:管件 产品目录页面:1402 (CN2011-ZH PDF)
WJLXT6155LE.B5-866256 制造商:Cortina Systems Inc 功能描述:SONET/SDH/ATM Transceiver 1TX 1RX 64-Pin LQFP T/R
WJLXT901ALC.A4 功能描述:IC 10BASE-T/AUI TXCVR 64-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 标准包装:1,000 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC(0.295",7.50mm 宽) 供应商设备封装:16-SOIC 包装:带卷 (TR)