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参数资料
型号： IDT82P20416DBFG
厂商： IDT, Integrated Device Technology Inc
文件页数： 41/121页
文件大小： 0K
描述： IC LIU T1/E1/J1 16CH SH 484BGA
标准包装： 84
功能： 线路接口单元（LIU）
接口： E1，J1，T1
电路数： 16
电源电压： 1.8V, 3.3V
功率（瓦特）： 3.10W
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 484-LFBGA
供应商设备封装： 484-CABGA（19x19）
包装： 托盘
包括： AIS 警报检测器和发生器，回送功能，PRBS 发生器 / 检测器，远程检测器和发生器
IDT82P20416
16-CHANNEL SHORT HAUL T1/E1/J1 LINE INTERFACE UNIT
Functional Description
26
December 17, 2009
In E1 applications, the waveform template meets G.703, as shown in
Figure-11. It is measured in the near end line side, as shown in Figure-
12.
In E1 applications, the PULS[3:0] should be set to ‘0000’ if differential
signals (output from TTIP and TRING) are coupled to a 75
coaxial
cable using Internal Impedance matching mode; the PULS[3:0] should
be set to ‘0001’ for other E1 interfaces. Refer to Table-6 for details.
Figure-11 E1 Waveform Template
Figure-12 E1 Waveform Template Measurement Circuit
After one of the preset waveform templates is selected, the preset
waveform amplitude can be adjusted to get the desired waveform.
In T1 mode, the standard value of the SCAL[5:0] bits (b5~0,
SCAL,...) is ‘110110’ which is also the default value. The adjusting is
made by increasing or decreasing by ‘1’ from the standard value to scale
up or down at a percentage ratio of 2% against the preset waveform
amplitude.
In E1 mode, the SCAL[5:0] bits (b5~0, SCAL,...) should be set to
‘100001’ to get the standard amplitude. The adjusting is made by
increasing or decreasing by ‘1’ from the standard value to scale up or
down at a percentage ratio of 3%.
In summary, do the following step by step, the desired waveform will
be got based on the preset waveform template:
Select one preset waveform template by setting the PULS[3:0] bits
(b3~0, PULS,...);
Write ‘100001 to the SCAL[5:0] bits (b5~0, SCAL,...) if E1 mode is
selected.
Write the scaling value to the SCAL[5:0] bits (b5~0, SCAL,...) to
scale the amplitude of the selected preset waveform template (-
this step is optional).
Table-5 PULS[3:0] Setting in T1/J1 Mode
Cable Conditions
PULS[3:0]
DSX1 - 0 ~ 133 ft
0010
DSX1 - 133 ~ 266 ft
0011
DSX1 - 266 ~ 399 ft
0100
DSX1 - 399 ~ 533 ft
0101
DSX1 - 533 ~ 655 ft
0110
J1 - 0 ~ 655 ft
0111
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
-0.20
0.00
0.20
0.40
0.60
0.80
1.00
1.20
Nor
m
alized
Amplitude
Time in Unit Intervals
Table-6 PULS[3:0] Setting in E1 Mode
Interface Conditions
PULS[3:0]
E1 75
differential interface,
Internal Impedance matching mode
0000
Other E1 interface
0001
IDT82P20416
VOUT
RLOAD
TTIPn
TRINGn
Note: RLOAD = 75
or 120 (+ 5%)
相关PDF资料
PDF描述
IDT82P20516DBFG IC LIU T1/E1/J1 16CH SH 484BGA
IDT82P2281PF TXRX T1/E1/J1 LONG/SHORT 80-TQFP
IDT82P2282PF TXRX T1/J1/E1 2CHAN 100-TQFP
IDT82P2284BB TXRX T1/J1/E1 4CHAN 208-PBGA
IDT82P2288BBG TXRX OCTAL T1/E1/J1 256-PBGA
相关代理商/技术参数
参数描述
IDT82P20416DBFG8 制造商:Integrated Device Technology Inc 功能描述:IC LIU T1/E1/J1 16CH SH 484BGA
IDT82P20416DBFGBLANK 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:16-Channel Short Haul T1/E1/J1 Line Interface Unit
IDT82P20516 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:16-Channel Short Haul E1 Line Interface Unit
IDT82P20516BFBLANK 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:16-Channel Short Haul E1 Line Interface Unit
IDT82P20516BFGBLANK 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:16-Channel Short Haul E1 Line Interface Unit
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