XRT75R12DIB-F Exar Corporation, XRT75R12DIB-F Datasheet - Page 28

• 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
For E3 mode, ITU-T G.703 Recommendation specifies that the receiver be able to recover error free clock and
data in the presence of a sinusoidal interfering tone signal. For DS3 and STS-1 modes, the same
recommendation is being used.
STS1.
F
F
F
3.5.4
IGURE
IGURE
IGURE
Figure 11
9. L
10. I
11. I
Interference Tolerance
OSS OF
NTERFERENCE
NTERFERENCE
RTIP/
RRing
RLOS Output Pin
shows the set up for E3.
STS-1 = 25.92 MHz
Pattern Generator
Signal Source
DS3 = 22.368 MHz
S
2
17.184mHz
Sine Wave
Generator
2
23
IGNAL
Sine Wave
Generator
-1 PRBS
23
-1 PRBS
M
M
D
ARGIN
ARGIN
EFINITION FOR
N
S
0 UI
N
Figure 10
S
Attenuator 1
T
T
10 UI
EST
EST
Actual Occurrence
of LOS Condition
Compliance
S
S
ET UP FOR
ET UP FOR
G.775
E3
Attenuator
shows the configuration to test the interference margin for DS3/
255 UI
AS PER
Attenuator 2
Time Range for
LOS Declaration
E3.
DS3/STS-1
24
ITU-T G.775.
∑
Cable Simulator
∑
Cable Simulator
Line Signal
is Restored
Time Range for
LOS Clearance
0 UI
XRT75R12D
XRT75R12D
DUT
10 UI
DUT
Compliance
Equipment
Equipment
Test
Test
255 UI
G.775
REV. 1.0.3