FIGURE 14. A<" />
參數(shù)資料
型號： XRT91L30IQTR-F
廠商： Exar Corporation
文件頁數(shù)： 34/40頁
文件大小： 0K
描述： IC TXRX SONET/SDH 8BIT 64QFP
標(biāo)準(zhǔn)包裝： 1,000
類型： 收發(fā)器
規(guī)程： SONET/SDH
電源電壓： 3.3V
安裝類型： 表面貼裝
封裝/外殼： 64-FQFP
供應(yīng)商設(shè)備封裝： 64-PQFP（10x10）
包裝： 帶卷 (TR)
XRT91L30
II
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
REV. 1.0.2
FIGURE 14. ALTERNATE TRANSMIT PARALLEL INPUT TIMING............................................................................................................ 23
TABLE 13: ALTERNATE TRANSMIT PARALLEL DATA INPUT TIMING (STS-12/STM-4 OPERATION) ...................................................... 24
TABLE 14: ALTERNATE TRANSMIT PARALLEL DATA INPUT TIMING (STS-3/STM-1 OPERATION). ....................................................... 24
3.5 TRANSMIT PARALLEL INPUT TO SERIAL OUTPUT (PISO) ...................................................................... 24
FIGURE 15. SIMPLIFIED BLOCK DIAGRAM OF PISO ......................................................................................................................... 24
3.6 CLOCK MULTIPLIER UNIT (CMU) AND RE-TIMER ..................................................................................... 25
TABLE 15: CLOCK MULTIPLIER UNIT’S REQUIREMENTS FOR REFCLK................................................................................................ 25
3.7 LOOP TIMING AND CLOCK CONTROL ........................................................................................................ 25
TABLE 16: LOOP TIMING AND CLOCK RECOVERY CONFIGURATIONS ................................................................................................. 26
FIGURE 16. LOOP TIMING MODE USING INTERNAL CDR OR AN EXTERNAL RECOVERED CLOCK ....................................................... 26
3.8 TRANSMIT SERIAL OUTPUT CONTROL ..................................................................................................... 27
FIGURE 17. TRANSMIT SERIAL OUTPUT INTERFACE BLOCK .............................................................................................................. 27
4.0 DIAGNOSTIC FEATURES ...................................................................................................................28
4.1 SERIAL REMOTE LOOPBACK ...................................................................................................................... 28
FIGURE 18. SERIAL REMOTE LOOPBACK......................................................................................................................................... 28
4.2 DIGITAL LOCAL LOOPBACK ....................................................................................................................... 28
FIGURE 19. DIGITAL LOCAL LOOPBACK........................................................................................................................................... 28
4.3 ANALOG LOCAL LOOPBACK ...................................................................................................................... 29
FIGURE 20. ANALOG LOCAL LOOPBACK .......................................................................................................................................... 29
4.4 SPLIT LOOPBACK ......................................................................................................................................... 29
FIGURE 21. SPLIT LOOPBACK ......................................................................................................................................................... 29
4.5 EYE DIAGRAM ............................................................................................................................................... 30
FIGURE 22. TRANSMIT ELECTRICAL OUTPUT EYE DIAGRAM............................................................................................................. 30
4.6 SONET JITTER REQUIREMENTS ................................................................................................................. 30
4.6.1 JITTER TOLERANCE: ................................................................................................................................................ 30
FIGURE 23. GR-253 JITTER TOLERANCE MASK .............................................................................................................................. 31
TABLE 17: XRT91L30 RECEIVER JITTER TOLERANCE PERFORMANCE ............................................................................................. 31
FIGURE 24. XRT91L30 MEASURED JITTER TOLERANCE WITH 77.76MHZ REFERENCE CLOCK ......................................................... 31
FIGURE 25. XRT91L30 MEASURED JITTER TOLERANCE WITH 19.44MHZ REFERENCE CLOCK ......................................................... 32
4.6.2 JITTER GENERATION................................................................................................................................................ 32
TABLE 18: XRT91L30 OPTICAL JITTER GENERATION USING 223-1 PRBS PATTERN ........................................................................ 32
TABLE 19: XRT91L30 OPTICAL JITTER GENERATION USING 223-1 PRBS PATTERN USING ALTERNATE STANDARD FILTERS .............. 32
5.0 ELECTRICAL CHARACTERISTICS ....................................................................................................33
ABSOLUTE MAXIMUM RATINGS ...................................................................................................................33
ABSOLUTE MAXIMUM POWER AND INPUT/OUTPUT RATINGS ..........................................................33
POWER AND CURRENT DC ELECTRICAL CHARACTERISTICS ....................................................................33
...................................................................................................................................................................33
LVPECL AND LVTTL LOGIC SIGNAL DC ELECTRICAL CHARACTERISTICS ......................................34
ORDERING INFORMATION ...................................................................................................................35
PACKAGE DIMENSIONS.................................................................................................35
REVISION HISTORY.......................................................................................................................................36
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