参数资料
型号: DS2149QN+
厂商: Maxim Integrated Products
文件页数: 2/32页
文件大小: 0K
描述: IC LIU T1/J1 5V 28-PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 37
类型: 线路接口装置(LIU)
规程: T1/J1
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 28-LCC(J 形引线)
供应商设备封装: 28-PLCC(11.51x11.51)
包装: 管件
DS2149
10 of 32
CR1 (B010000): Control Register 1
MSb
LSb
JASEL1
JASEL0
ENCENB
UNIENB
L3
L2
L1
L0
SYMBOL
POSITION
FUNCTION
JASEL1
CR1.7
Jitter attenuator select (Table 4-C)
JASEL0
CR1.6
Jitter attenuator select (Table 4-C)
ENCENB
CR1.5
B8ZS and NRZ control (Table 4-D)
UNIENB
CR1.4
BPV and NRZ control (Table 4-D)
L3
CR1.3
Line build-out control (Table 4-E)
L2
CR1.2
Line build-out control (Table 4-E)
L1
CR1.1
Line build-out control (Table 4-E)
L0
CR1.0
Line build-out control (Table 4-E)
Table 4-C. Jitter Attenuator Selection
JASEL1
JASEL0
JITTER ATTENUATOR FUNCTION
0
1
Transmit path
1
Receive path
X
0
Disabled
Table 4-D. Line Code and Interface Selection
UNIENB
ENCENB
LINE CODE
INTERFACE
0
AMI
Bipolar
1
0
AMI
NRZ
X
1
B8ZS
NRZ
Table 4-E. Line Build-out Selection
L3
L2
L1
L0
APPLICATION
OUTPUT SIGNAL
Rx GAIN (dB)
0
T1 Long Haul
0dB
36
0
1
0
T1 Long Haul
-7.5dB
36
0
1
0
T1 Long Haul
-15dB
36
0
1
0
T1 Long Haul
-22.5dB
36
0
1
T1 Long Haul
0dB
26
0
1
T1 Long Haul
-7.5dB
26
0
1
0
1
T1 Long Haul
-15dB
26
0
1
T1 Long Haul
-22.5dB
26
1
0
1
D4 Short Haul
6V
18
1
0
1
T1 Short Haul
DSX-1 (0ft to 133ft)
18
1
0
T1 Short Haul
DSX-1 (133ft to 266ft)
18
1
0
1
T1 Short Haul
DSX-1 (266ft to 399ft)
18
1
0
T1 Short Haul
DSX-1 (399ft to 533ft)
18
1
T1 Short Haul
DSX-1 (533ft to 655ft)
18
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