參數(shù)資料
型號: XRT75R03DIV
廠商: Exar Corporation
文件頁數(shù): 34/135頁
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 3CH 128LQFP
標準包裝: 72
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 3/3
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應商設備封裝: 128-LQFP(14x20)
包裝: 托盤
XRT75R03D
125
REV. 1.0.4
THREE CHANNEL E3/DS3/STS-1 LINE
HOW MAJOR PATTERN A IS SYNTHESIZED
MAJOR PATTERN A is created (by the Mapper IC) by:
Repeating MINOR PATTERN P1 (e.g., 7 clock pulses, followed by a gap) 63 times.
Upon completion of the 63rd transmission of MINOR PATTERN P1, MINOR PATTERN P2 is transmitted
repeatedly 36 times.
Figure 61 presents an illustration which depicts the procedure that is used to synthesize MAJOR PATTERN A
Hence, MAJOR PATTERN A consists of "(63 x 7) + (36 x 5)" = 621 clock pulses. These 621 clock pulses were
delivered over a period of "(63 x 8) + (36 x 6)" = 720 STS-1 (or 51.84MHz) clock periods.
MAJOR PATTERN B
MAJOR PATTERN B consists of three sub or minor-patterns (which we will refer to as "MINOR PATTERNS
P1, P2 and P3).
MINOR PATTERN P1, which is used to partially synthesize MAJOR PATTERN B, is exactly the same "MINOR
PATTERN P1" as was presented above in Figure 31. Similarly, the MINOR PATTERN P2, which is also used
to partially synthesize MAJOR PATTERN B, is exactly the same "MINOR PATTERN P2" as was presented in
Figure 32
.
MINOR PATTERN P3 (which has yet to be defined) consists of a string of six (6) clock pulses, which contains
no gaps. An illustration of MINOR PATTERN P3 is presented below in Figure 62.
FIGURE 60. ILLUSTRATION OF MINOR PATTERN P2
FIGURE 61. ILLUSTRATION OF PROCEDURE WHICH IS USED TO SYNTHESIZE MAJOR PATTERN A
1
2
3
4
5
Missing Clock Pulse
MINOR PATTERN P1
MINOR PATTERN P2
Repeats 63 Times
Repeats 36 Times
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相關代理商/技術參數(shù)
參數(shù)描述
XRT75R03DIV-F 功能描述:網(wǎng)絡控制器與處理器 IC 3-Ch E3/DS3/STS-1 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
XRT75R03DIVTR 功能描述:時鐘合成器/抖動清除器 3CHNNEL E3/DS3/STS 1 JITTER ATTENUATOR 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
XRT75R03DIVTR-F 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:BGA-59
XRT75R03ES 功能描述:時鐘合成器/抖動清除器 3CH T3/E3/STS1LIU+JA 3.3V W/REDUNDANCY 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
XRT75R03IV 功能描述:外圍驅(qū)動器與原件 - PCI 3CHNNEL E3/DS3/STS 1 JITTER ATTENUATOR RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray