82P2281PFG8 IDT, Integrated Device Technology Inc, 82P2281PFG8 Datasheet - Page 133
82P2281PFG8
Manufacturer Part Number
82P2281PFG8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82P2281PFG8.pdf
(371 pages)
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
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T1/J1 Receive Configuration 1 (029H)
EQ_ON:
LOS[4:0]:
pulse intervals. In long haul applications, these bits select the LOS declare threshold (Q). These bits are invalid in short haul applications.
Programming Information
IDT82P2281
Bit Name
Default
Bit No.
Type
= 0: The Equalizer is off in short haul applications.
= 1: The Equalizer is on in long haul applications.
A LOS is detected when the incoming signals has “no transitions”, i.e., when the signal level is less than Q dB below nominal for N consecutive
Reserved
7
LOS[4:0]
00000
00001
00010
00100
00101
01000
01001
01010
00011
00110
00111
01011
EQ_ON
R/W
6
0
LOS Declare Threshold (Q)
Reserved
5
-10 dB
-12 dB
-14 dB
-16 dB
-18 dB
-20 dB
-22 dB
-24 dB
-26 dB
-4 dB
-6 dB
-8 dB
LOS4
R/W
4
1
133
LOS[4:0]
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
10110 -
01100
01101
10000
10001
10010
10011
10100
10101
01110
01111
11111
LOS3
R/W
3
0
LOS Declare Threshold (Q)
-28 dB
-30 dB
-32 dB
-34 dB
-36 dB
-38 dB
-40 dB
-42 dB
-44 dB
-46 dB
-48 dB
LOS2
R/W
2
1
LOS1
R/W
1
0
August 20, 2009
LOS0
R/W
0
1
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