- 您现在的位置：买卖IC网 > PDF目录11007 > XRT85L61IG-F (Exar Corporation)IC BITS CLOCK EXTRACTOR 28TSSOP PDF资料下载
参数资料
| 型号： | XRT85L61IG-F |
| 厂商： | Exar Corporation |
| 文件页数： | 7/19页 |
| 文件大小： | 0K |
| 描述： | IC BITS CLOCK EXTRACTOR 28TSSOP |
| 标准包装： | 50 |
| 功能： | BITS 时钟提取器 |
| 接口： | E1，T1 |
| 电路数： | 1 |
| 电源电压： | 3.14 V ~ 3.47 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 管件 |
| 包括： | 无晶数字式抖动衰减器 |
| 其它名称： | 1016-1360-5 |
xr
XRT85L61
REV. 1.0.2
BITS (BUILDING INTEGRATED TIMING SUPPLY) CLOCK EXTRACTOR
14
2.0
AIS DETECTION TIMING
In E1 mode, AIS is set when the received incoming signal has 2 or less Zero’s in a sequence of 512 bits. AIS
will stay “High” for 250
s and AIS is cleared upon receiving three or more Zero’s in the subsequent 512 bits
(250
s) time-frame. Figure 9 shows the AIS timing.
In T1 mode, AIS is detected if the received input signal has 4 or less Zero’s in a sequence of 4632 bits (3ms)
and AIS is cleared when 5 or more Zero’s are detected in the subsequent 4632 bits (3 ms) time-frame.
Figure 10 shows the AIS timing for T1 mode.
3.0 LOSS OF SIGNAL
The XRT85L61 Receive Loss of Signal (RLOS) monitoring circuits consist of both analog and digital schemes.
Both E1 and T1 meet G.775 RLOS declare and clear criteria. In E1 and 64kb/s modes, RLOS will be set if the
input pattern exceeds 32 bit consecutive zeros. In T1 mode, RLOS will go "High" if the number of consecutive
zeros exceeds 175.
The XRT85L61 RLOS detection circuit also reports RLOS if the input signal level drops below 220mVp (typical)
and RLOS is cleared when the input signal level returns to more than 380mVp (typical) when the input pattern
meets 12.5% density over a 32 bit period.
FIGURE 9. AIS DETECTION FOR E1 MODE
FIGURE 10. AIS DETECTION FOR T1 MODE
E1
DATA
AIS
250
s
250
s
00
0
3 ms
T1
DATA
AIS
00
0
00
相关PDF资料 |
PDF描述 |
|---|---|
| VE-B1Z-IX-F2 | CONVERTER MOD DC/DC 2V 30W |
| VE-B1Z-IX-F1 | CONVERTER MOD DC/DC 2V 30W |
| VE-B1Z-IW-F3 | CONVERTER MOD DC/DC 2V 40W |
| VE-B1Z-IW-F2 | CONVERTER MOD DC/DC 2V 40W |
| VE-B1Y-IY-F4 | CONVERTER MOD DC/DC 3.3V 33W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT85L61IG-F | 制造商:Exar Corporation 功能描述:BITS Clock Extractor IC |
| XRT85L61IGTR | 功能描述:时钟合成器/抖动清除器 T1/E1/64KHZ 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 |
| XRT85L61IGTR-F | 功能描述:时钟合成器/抖动清除器 T1/E1/64KHZ 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 |
| XRT86L30 | 制造商:EXAR 制造商全称:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
| XRT86L30_07 | 制造商:EXAR 制造商全称:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
发布紧急采购，3分钟左右您将得到回复。