82P2284BB IDT, Integrated Device Technology Inc, 82P2284BB Datasheet - Page 153
82P2284BB
Manufacturer Part Number
82P2284BB
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82P2284BB.pdf
(363 pages)
Specifications of 82P2284BB
Screening Level
Industrial
Mounting
Surface Mount
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Lead Free Status / RoHS Status
Not Compliant
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82P2284BBG
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T1/J1 Maintenance Function Control 1 (02CH, 12CH, 22CH, 32CH)
LAC:
RAISE:
ATAO:
Programming Information
IDT82P2284
Bit Name
This bit selects the LOS criterion.
= 0: The T1.231 is selected. In short haul application, the LOS is declared when the incoming signal level is less than 800 mVpp for 175 consecu-
tive bit intervals and is cleared when the incoming signal level is greater than 1 Vpp and has an average mark density of at least 12.5% and less
than 100 consecutive zeros in 128 consecutive bit periods. In long haul application, the LOS is declared when the incoming signal level is less than
Q dB below nominal (set in the LOS[4:0] bits (b4~0, T1/J1-029H,...)) for 175 consecutive bit intervals and is cleared when the incoming signal level
is greater than (Q + 4 dB) and has an average mark density of at least 12.5% and less than 100 consecutive zeros in 128 consecutive bit periods.
= 1: The I.431 is selected. In short haul application, the LOS is declared when the incoming signal level is less than 800 mVpp for 1544 consecutive
bit intervals and is cleared when the incoming signal level is greater than 1 Vpp and has an average mark density of at least 12.5% and less than
100 consecutive zeros in 128 consecutive bit periods. In long haul application, the LOS is declared when the incoming signal level is less than Q
dB below nominal (set in the LOS[4:0] bits (b4~0, T1/J1-029H,...)) for 1544 consecutive bit intervals and is cleared when the incoming signal level
is greater than (Q + 4 dB) and has an average mark density of at least 12.5% and less than 100 consecutive zeros in 128 consecutive bit periods.
This bit determines whether all ’One’s can be inserted in the receive path when the LOS is detected.
= 0: Disable the insertion.
= 1: Enable the insertion.
This bit determines whether all ’One’s can be inserted in the transmit path when the LOS is detected in the receive path.
= 0: Disable the insertion.
= 1: Enable the insertion.
Default
Bit No.
Type
7
6
Reserved
5
4
153
QUAD T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
3
LAC
R/W
2
0
RAISE
R/W
1
0
February 25, 2008
ATAO
R/W
0
0
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