- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2121 > XRT85L61IG (Exar Corporation)IC BITS CLOCK EXTRACTOR 28TSSOP PDF資料下載
參數(shù)資料
| 型號(hào)： | XRT85L61IG |
| 廠商： | Exar Corporation |
| 文件頁(yè)數(shù)： | 7/19頁(yè) |
| 文件大小： | 0K |
| 描述： | IC BITS CLOCK EXTRACTOR 28TSSOP |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 功能： | BITS 時(shí)鐘提取器 |
| 接口： | E1，T1 |
| 電路數(shù)： | 1 |
| 電源電壓： | 3.14 V ~ 3.47 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-TSSOP |
| 包裝： | 管件 |
| 包括： | 無(wú)晶數(shù)字式抖動(dòng)衰減器 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)當(dāng)前第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT91L30IQ | IC TXRX SONET/SDH 8BIT 64QFP |
| XRT91L32IQTR | IC TXRX SONET/SDH 8BIT 100QFP |
| XRT91L80IB-F | IC TXRX SONET/SDH 4BIT 196STBGA |
| ZSD100N8TA | IC DRIVER SIREN 8-SOIC |
| ZXCD1210JB16TA | IC AMP AUDIO CLASS D 16QFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT85L61IG-F | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 BITS -.5V-6V temp -45 to 85C RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT85L61IG-F | 制造商:Exar Corporation 功能描述:BITS Clock Extractor IC |
| XRT85L61IGTR | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 T1/E1/64KHZ RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT85L61IGTR-F | 功能描述:時(shí)鐘合成器/抖動(dòng)清除器 T1/E1/64KHZ RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT86L30 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。