IDT82P2284 Integrated Device Technology, Inc., IDT82P2284 Datasheet - Page 139

• Manufacturer Part Number: IDT82P2284
• Description: 4 Channel T1/J1/E1 Transceiver
• Manufacturer: Integrated Device Technology, Inc.

IDT82P2284
T1/J1 Receive Configuration 1 (029H, 129H, 229H, 329H)
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
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
128
LOS[4:0]
10110 -
01100
01101
10000
10001
10010
10011
10100
10101
01110
01111
11111
QUAD T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
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
March 22, 2004
LOS0
R/W
0
1