參數(shù)資料
型號: XRT75L00DIVTR-F
廠商: Exar Corporation
文件頁數(shù): 64/92頁
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 SGL 52TQFP
標(biāo)準(zhǔn)包裝: 1,000
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: DS3,E3,STS-1,SONET
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 52-LQFP
供應(yīng)商設(shè)備封裝: 52-TQFP(10x10)
包裝: 帶卷 (TR)
XRT75L00D
REV. 1.0.2
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
62
Figure 43 relates the contents within these 10 bits (within the H1 and H2 bytes) to the location of the J1 byte
(e.g., the very first byte of the STS-1 SPE) within the Envelope Capacity.
NOTES:
1.
If the content of the "Pointer Bits" is "0x00" then the J1 byte is located immediately after the H3 byte, within the
Envelope Capacity.
2.
If the contents of the 10-bit expression exceed the value of 0x30F (or 782, in decimal format) then it does not
contain a valid pointer value.
9.3.2
Pointer Adjustments within the SONET Network
The word SONET stands for "Synchronous Optical NETwork.
This name implies that the entire SONET
network is synchronized to a single clock source. However, because the SONET (and SDH) Networks can
FIGURE 42. THE BIT-FORMAT OF THE 16-BIT WORD (CONSISTING OF THE H1 AND H2 BYTES) WITH THE 10 BITS,
REFLECTING THE LOCATION OF THE
J1 BYTE, DESIGNATED
FIGURE 43. THE RELATIONSHIP BETWEEN THE CONTENTS OF THE "POINTER BITS" (E.G., THE 10-BIT EXPRESSION
WITHIN THE
H1 AND H2 BYTES) AND THE LOCATION OF THE J1 BYTE WITHIN THE ENVELOPE CAPACITY OF AN STS-
1 FRAME
X
S
N
LSB
MSB
H2 Byte
H1 Byte
10 Bit Pointer Expression
521
520
* * * * * * * *
* *
436
435
E2
M0
S1
434
433
* * * * * * * *
* *
349
348
D12
D11
D10
347
346
* * * * * * * *
* *
262
261
D9
D8
D7
260
259
* * * * * * * *
* *
175
174
D6
D5
D4
173
172
* * * * * * * *
* *
88
87
K2
K1
B2
86
85
* * * * * * * *
* *
1
0
H3
H2
H1
782
781
* * * * * * * *
* *
697
696
D3
D2
D1
695
694
* * * * * * * *
* *
610
609
F1
E1
B1
608
607
* * * * * * * *
* *
523
522
C1/J0
A2
A1
TOH
The Pointer Value “0” is immediately
After the H3 byte
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XRT75L00ES 功能描述:時鐘合成器/抖動清除器 1CH T3/E3/STS1 LIU+JA 3.3V 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
XRT75L00IV 功能描述:外圍驅(qū)動器與原件 - PCI 3.3V 1 CH E3/DS3/STS W/JITTER ATTEN RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
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