XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 118

• Manufacturer Part Number: XRT75R12DIB-F
• Description: Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
• Manufacturer: Exar Corporation

Specifications of XRT75R12DIB-F

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V to 5 V
• Package / Case: TBGA-420
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

XRT75R12D
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
Telcordia GR-253-CORE defines an "Continuous Add" Pointer Adjustment, as the "Continuous" Pointer
Adjustment pattern, with an additional pointer adjustment inserted, as shown above in Figure 62.
Telcordia GR-253-CORE mandates that the Intrinsic Jitter, within the DS3 signal that is de-mapped from a
SONET signal, which is experiencing the "Continuous Add" pattern of Pointer Adjustments, must not exceed
1.3UI-pp.
Figure 63 presents an illustration of the "Continuous Cancel Pattern" Pointer Adjustment Scenario per
Telcordia GR-253-CORE.
F
F
8.5.10
IGURE
IGURE
62. I
63. I
Continuous Cancel
LLUSTRATION OF
LLUSTRATION OF
Continuous Pointer Adjustments
T
C
C
T
ONTINUOUS
ONTINUOUS
Added Pointer Adjustment
Continuous Pointer Adjustments
-A
-C
DD
ANCEL
P
t
OINTER
P
OINTER
114
Continuous Pointer Adjustments
A
DJUSTMENT
A
DJUSTMENT
S
CENARIO
S
CENARIO
Pointer Adjustment
Cancelled
REV. 1.0.3