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參數(shù)資料
| 型號： | XRT85L61IGTR-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 19/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC BITS CLOCK EXTRACTOR 28STSSOP |
| 標準包裝： | 2,500 |
| 功能： | BITS 時鐘提取器 |
| 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） |
| 供應商設備封裝： | 28-TSSOP |
| 包裝： | 帶卷 (TR) |
| 包括： | 無晶數(shù)字式抖動衰減器 |
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XRT85L61
REV. 1.0.2
BITS (BUILDING INTEGRATED TIMING SUPPLY) CLOCK EXTRACTOR
8
FUNCTIONAL DESCRIPTION
The XRT85L61 is an integrated BITS (Building Integrated Timing Supply) Clock Generator. Simplified block
diagram of the chip is shown in Figure 1.
The XRT85L61 extracts the clock signals from the following synchronization lines:
■ Balanced 100 lines with 1544 kbps DS1 pattern.
■ Balanced 120 or unbalanced 75 lines with 2048 kbps RZ pattern.
■ Balanced 120 or unbalanced 75 line with 2048 kbps NRZ pattern.
■ Balanced 110 line with 64 kbps having 8 kHz violations; a “64 kHz + 8 kHz sync pattern.
■ Balanced 110 line with a 64 kbps pattern having both 8 kHz and 400 Hz violations; a “64 kHz + 8 kHz
+ 400 Hz” sync pattern.
1.0 OPERATING MODE:
The operating mode for the XRT85L61 is shown in Table 6.
1.1
64 kHz Clock Mode:
The XRT85L61 receives the 64 kbps ternary RZ signal. Two modes of 64 kHz operation is possible by
selecting S1, S2 and S3 as shown in Table 1.
TABLE 6: OPERATING MODE SELECTION
S1
S2
S3
MODE
DATA OUTPUT AT
RPOS / RNEG
0
64 kHz + 8 kHz
RZ
0
1
64 kHz + 8 kHz + 400 Hz
RZ
0
1
0
E1RZ
RZ
0
1
E1NRZ
RZ
1
0
T1
RZ
1
0
1
T1 (full width)
NRZ
1
0
E1 (full width)
NRZ
1
Reserved
TABLE 7: G.703 SPECIFICATION FOR THE 64 KHZ CLOCK SIGNAL AT INPUT PORT
FREQUENCY
(A) 64 KHZ + 8 KHZ OR (B) 64 KHZ + 8 KHZ + 400 HZ
Signal Format
(a) AMI with 8 kHz Bipolar Violation
(b) AMI with 8 kHz Bipolar Violation removed at every 400 Hz.
Alarm Condition
Alarm should not occur against the amplitude range from 0.63 V to 1.1 V
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| XRT86L30 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
| XRT86L30_07 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
| XRT86L30_08 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
| XRT86L30ES | 功能描述:網(wǎng)絡控制器與處理器 IC pin LQFP pkg RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT86L30IB | 制造商:EXAR 制造商全稱:EXAR 功能描述:SINGLE T1/E1/J1 FRAMER/LIU COMBO |
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