XRT91L32IQ-F 데이터 시트보기 (PDF) - Exar Corporation
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XRT91L32IQ-F Datasheet PDF : 37 Pages
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STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
XRT91L32
REV. 1.0.2
FIGURE 14. LOOP TIMING MODE USING INTERNAL CDR OR AN EXTERNAL RECOVERED CLOCK ....................................................... 25
3.6 TRANSMIT SERIAL OUTPUT CONTROL ..................................................................................................... 25
FIGURE 15. TRANSMIT SERIAL OUTPUT INTERFACE BLOCK .............................................................................................................. 25
4.0 DIAGNOSTIC FEATURES ................................................................................................................... 26
4.1 SERIAL REMOTE LOOPBACK ..................................................................................................................... 26
FIGURE 16. SERIAL REMOTE LOOPBACK......................................................................................................................................... 26
4.2 DIGITAL LOCAL LOOPBACK ....................................................................................................................... 26
FIGURE 17. DIGITAL LOCAL LOOPBACK........................................................................................................................................... 26
4.3 ANALOG LOCAL LOOPBACK ...................................................................................................................... 27
FIGURE 18. ANALOG LOCAL LOOPBACK .......................................................................................................................................... 27
4.4 SPLIT LOOPBACK ......................................................................................................................................... 27
FIGURE 19. SPLIT LOOPBACK......................................................................................................................................................... 27
4.5 EYE DIAGRAM ............................................................................................................................................... 28
FIGURE 20. STS-3/STM-1 EYE DIAGRAM ...................................................................................................................................... 28
FIGURE 21. STS-12/STM-4 EYE DIAGRAM .................................................................................................................................... 28
4.6 SONET JITTER REQUIREMENTS ................................................................................................................. 29
4.6.1 JITTER TOLERANCE: ................................................................................................................................................ 29
FIGURE 22. JITTER TOLERANCE MASK............................................................................................................................................ 29
FIGURE 23. XRT91L32 MEASURED JITTER TOLERANCE AT 622.08 MBPS STS-12/STM-4 .............................................................. 30
FIGURE 24. XRT91L32 MEASURED JITTER TOLERANCE AT 155.52 MBPS STS-3/STM-1 ................................................................ 30
4.6.2 JITTER GENERATION................................................................................................................................................ 31
FIGURE 25. XRT91L32 MEASURED ELECTRICAL PHASE NOISE TRANSMIT JITTER GENERATION AT 622.08 MBPS STS-12/STM4 USING
’1010’ OUTPUT PATTERN................................................................................................................................................. 31
5.0 ELECTRICAL CHARACTERISTICS ................................................................................................... 32
ABSOLUTE MAXIMUM RATINGS .................................................................................................................. 32
ABSOLUTE MAXIMUM POWER AND INPUT/OUTPUT RATINGS ......................................................... 32
POWER AND CURRENT DC ELECTRICAL CHARACTERISTICS.................................................................... 32
................................................................................................................................................................... 32
LVPECL AND LVTTL LOGIC SIGNAL DC ELECTRICAL CHARACTERISTICS...................................... 33
ORDERING INFORMATION .................................................................................................................. 34
PACKAGE DIMENSIONS ................................................................................................ 34
REVISION HISTORY ...................................................................................................................................... 35
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