82P2281PFG IDT, Integrated Device Technology Inc, 82P2281PFG Datasheet - Page 136

• Manufacturer Part Number: 82P2281PFG
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2281PFG

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

T1/J1 Maintenance Function Control 1 (02CH)
LAC:
utive 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.
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 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.
RAISE:
ATAO:
Programming Information
IDT82P2281
Bit Name
Default
Bit No.
Type
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 consec-
= 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 consecu-
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.
7
6
Reserved
5
4
136
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
3
LAC
R/W
2
0
RAISE
R/W
1
0
August 20, 2009
ATAO
R/W
0
0