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参数资料
| 型号： | XRT75VL00D |
| 厂商： | Exar Corporation |
| 英文描述： | E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| 中文描述： | E3/DS3/STS-1线路接口单元与SONET DESYNCHRONIZER |
| 文件页数： | 81/92页 |
| 文件大小： | 836K |
| 代理商： | XRT75VL00D |
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XRT75VL00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
77
Using a particular clock edge within the "gapped" clock signal (from the Mapper IC) to sample and latch the
value of each DS3 data-bit that is output from the Mapper IC.
To (through the user of the Jitter Attenuator block) attenuate the jitter within this "DS3 data" and "clock signal"
that is output from the Mapper IC.
To convert this "smoothed" DS3 data and clock into industry-compliant DS3 pulses, and to output these
pulses onto the line.
To configure the LIU to operate in the correct mode for this application, the user must execute the following
configuration steps.
a.
Configure the LIU to operate in the DS3 Mode
The user can configure a given channel (within the LIU) to operate in the DS3 Mode, by executing either of the
following steps.
If the LIU has been configured to operate in the Host Mode
The user can accomplish this by setting both Bits 2 (E3_n) and Bits 1 (STS-1/DS3*_n), within each of the
"Channel Control Registers" to "0" as depicted below.
If the LIU has been configured to operate in the Hardware Mode
The user can accomplish this by pulling all of the following input pins "Low".
Pin 76 - E3_0
Pin 94 - E3_1
Pin 85 - E3_2
Pin 72 - STS-1/DS3_0
Pin 98 - STS-1/DS3_1
Pin 81 - STS-1/DS3_2
b.
Configure the LIU to operate in the Single-Rail Mode
Since the Mapper IC will typically output a single "Data Line" and a "Clock Line" for each DS3 signal that it
demaps from the incoming STS-N signal, it is imperative to configure each channel within the LIU to operate in
the Single Rail Mode.
The user can accomplish this by executing either of the following steps.
If the LIU has been configured to operate in the Host Mode
The user can accomplish this by setting Bit 0 (SR/DR*), within the each of the "Channel Control" Registers to
1, as illustrated below.
CHANNEL CONTROL REGISTER - CHANNEL 0 ADDRESS LOCATION = 0X06
CHANNEL 1 ADDRESS LOCATION = 0X0E
CHANNEL 2 ADDRESS LOCATION = 0X16
BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1
BIT 0
Unused
PRBS Enable
Ch_n
RLB_n
LLB_n
E3_n
STS-1/DS3_n
SR/DR_n
R/O
R/W
00
000
00
0
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| XS2F-A422-90-A | 4 CONTACT(S), POLYBUTYLENE TEREPHTHALATE, FEMALE, CIRCULAR CONNECTOR, CLAMP, SOCKET |
| XS2F-A422-A90-A | 4 CONTACT(S), POLYBUTYLENE TEREPHTHALATE, FEMALE, CIRCULAR CONNECTOR, CLAMP, SOCKET |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT75VL00D_08 | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET |
| XRT75VL00D1V-F | 制造商:Exar Corporation 功能描述: |
| XRT75VL00DES | 功能描述:时钟合成器/抖动清除器 1CHT3/E3/STS1LIU+ DESYNC 3.3V DRV VER RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75VL00DIV | 功能描述:时钟合成器/抖动清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| XRT75VL00DIV-F | 功能描述:时钟合成器/抖动清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
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