XRT75L00D Datasheet, PDF (3/92 Pages) Exar Corporation – E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

REV. 1.0.2
XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
• Built-in B3ZS/HDB3 Decoder (which can be disabled).
• Recovered Data can be muted while the LOS Condition is declared.
• Outputs either Single-Rail or Dual-Rail data to the Terminal Equipment.
JITTER ATTENUATORS
The XRT75L00D includes a Jitter Attenuator that meets the Jitter requirements specified in the ETSI TBR-24,
Bellcore GR-499 and GR-253 standards. In addition, the jitter attenuator also meets the Jitter and Wander
specifications described in the ANSI T1.105.03b 1997, Bellcore GR-253 and GR-499 standards.
FIGURE 2. PIN OUT OF THE XRT75L00D
DMO 40
MTIP 41
MRING 42
JaAGND 43
ExClk/12M 44
JaAVDD 45
TxClk 46
TPData 47
TNData 48
DGND 49
TTIP 50
TRING 51
DVDD 52
XRT75L00D
(top view)
26 SCLK (TxClkINV)
25 SDI (RxON)
24 CS (RxClkINV)
23 REQEN
22 SR/DR
21 HOST/HW
20 E3
19 STS1/DS3
18 RLB
17 LLB
16 ICT
15 TEST
14 RESET
3