82P2281PFG IDT, Integrated Device Technology Inc, 82P2281PFG Datasheet - Page 133

• 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 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