IDT82P5088BBG IDT, Integrated Device Technology Inc, IDT82P5088BBG Datasheet - Page 29
IDT82P5088BBG
Manufacturer Part Number
IDT82P5088BBG
Description
IC LIU T1/E1/J1 OCTAL 256PBGA
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.IDT82P5088BBG.pdf
(81 pages)
Specifications of IDT82P5088BBG
Includes
Integrated Clock Adapter
Function
Line Interface Unit (LIU)
Interface
E1, J1, T1
Number Of Circuits
8
Voltage - Supply
1.8V, 3.3V
Power (watts)
2.57W
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
256-BBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
IDT82P5088BBG
Manufacturer:
IDT
Quantity:
170
Company:
Part Number:
IDT82P5088BBG
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
10 000
Part Number:
IDT82P5088BBG
Manufacturer:
IDT
Quantity:
20 000
Table-20 LOS Declare and Clear Criteria for Long Haul Mode
3.3.12.2AIS DETECTION
the Clock&Data Recovery unit is enabled. The status of AIS detection is
reflected in the AIS_S bit (STAT0, 36H...). In T1/J1 applications, the criteria
for declaring/clearing AIS detection are in compliance with the ANSI
FUNCTIONAL DESCRIPTION
IDT82P5088
The Alarm Indication Signal can be detected by the IDT82P5088 when
TEMODE
1=T1/J1
0=E1
0
1
0
1
LAC
T1.231
G.775
I.431/
I.431 00111
ETSI
Control bit
-
-
-
-
-
-
00000
00001
…
10001
…
10101
10110-11111
00000
…
00110
…
01101
01110
…
10001
…
10101
10110-11111
00000
…
00010
00011
…
10000
10001
…
10101(default)
10110-11111
00000
00001
…
01000
01001
…
10101(default)
10110-11111
LOS[4:0]
-4
-6
…
-38
…
-46
-48
-16
-18
…
-30
-32
…
-38
…
-46
-48
-4
…
-8
-10
…
…
-6
…
-20
…
-4
-36
-38
-46
-48
-4
-22
-46
-48
Q (dB)
Level < Q
N=175 bits
Level < Q
N=1544 bits
Level < Q
N=32 bits
Level < Q
N=2048 bits
UNIVERSAL OCTAL T1/E1/J1 LIU WITH INTEGRATED CLOCK ADAPTER
LOS declare threshold
29
T1.231. In E1 applications, the criteria for declaring/clearing AIS detection
comply with the ITU G.775 or the ETSI 300233, as selected by the LAC bit
(MAINT1,2CH...).
Declaring/Clearing.
Level > Q+ 4dB
M=128 bits
12.5% mark density
<100 consecutive zeroes
Level > Q+ 4dB
M=128 bits
12.5% mark density
<100 consecutive zeroes
Level > Q+ 4dB
M=32 bits
12.5% mark density
<16 consecutive zeroes
Level > Q+ 4dB
M=32 bits
12.5% mark density
<16 consecutive zeroes
LOS clear threshold
Table-21
summarizes different criteria for AIS detection
I.431 Level detect range is -18 to -30 dB.
G.775 Level detect range is -9 to -35 dB.
I.431 Level detect range is -6 to -20 dB.
Note
February 5, 2009