ds2149qt-r Maxim Integrated Products, Inc., ds2149qt-r Datasheet - Page 10

• Manufacturer Part Number: ds2149qt-r
• Description: Ds2149 5v T1/j1 Line Interface Unit
• Manufacturer: Maxim Integrated Products, Inc.

CR1 (B010000): Control Register 1
Table 4-C. Jitter Attenuator Selection
Table 4-D. Line Code and Interface Selection
Table 4-E. Line Build-out Selection
JASEL1
L3
JASEL1
UNIENB
0
0
0
0
0
0
0
0
1
1
1
1
1
1
MSb
SYMBOL
ENCENB
UNIENB
JASEL1
JASEL0
X
0
1
X
0
1
L3
L2
L1
L0
L2
0
0
1
1
0
0
1
1
0
0
1
1
1
1
JASEL0
L1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
JASEL0
ENCENB
1
1
0
L0
0
0
0
0
1
1
1
1
1
1
0
1
0
1
0
0
1
POSITION
ENCENB
CR1.7
CR1.6
CR1.5
CR1.4
CR1.3
CR1.2
CR1.1
CR1.0
APPLICATION
D4 Short Haul
T1 Short Haul
T1 Short Haul
T1 Short Haul
T1 Short Haul
T1 Short Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
T1 Long Haul
JITTER ATTENUATOR FUNCTION
LINE CODE
UNIENB
B8ZS
Jitter attenuator select
Jitter attenuator select
B8ZS and NRZ control
BPV and NRZ control
Line build-out control
Line build-out control
Line build-out control
Line build-out control
AMI
AMI
Transmit path
Receive path
Disabled
DSX-1 (533ft to 655ft)
DSX-1 (133ft to 266ft)
DSX-1 (266ft to 399ft)
DSX-1 (399ft to 533ft)
OUTPUT SIGNAL
DSX-1 (0ft to 133ft)
10 of 32
L3
-22.5dB
-22.5dB
-7.5dB
-7.5dB
-15dB
-15dB
0dB
0dB
6V
INTERFACE
FUNCTION
(Table
(Table
(Table
(Table
(Table
(Table
(Table
Bipolar
(Table
NRZ
NRZ
L2
4-C)
4-C)
4-E)
4-E)
4-E)
4-E)
4-D)
4-D)
Rx GAIN (dB)
L1
36
36
36
36
26
26
26
26
18
18
18
18
18
18
LSb
L0