82P2281PFG8 IDT, Integrated Device Technology Inc, 82P2281PFG8 Datasheet - Page 248

• Manufacturer Part Number: 82P2281PFG8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2281PFG8

• 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

E1 Maintenance Function Control 1 (02CH)
LAC:
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
16 consecutive zeros in 32 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, E1-029H)) for 32 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 16 consecutive zeros in 32 consecutive bit periods.
secutive 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 16 consecutive zeros in 32 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, E1-029H)) for 2048 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 16 consecutive zeros in 32 consecutive bit periods.
RAISE:
ATAO:
Programming Information
IDT82P2281
Bit Name
Default
Bit No.
Type
This bit selects the LOS criteria.
= 0: The G.775 is selected. In short haul application, the LOS is declared when the incoming signal level is less than 800 mVpp for 32 consecu-
= 1: The I.431/ETSI is selected. In short haul application, the LOS is declared when the incoming signal level is less than 800 mVpp for 2048 con-
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
248
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