參數(shù)資料
型號(hào): DS21348T
英文描述: 3.3V E1/T1/J1 Line Interface
中文描述: 3.3 E1/T1/J1線路接口
文件頁(yè)數(shù): 48/73頁(yè)
文件大?。?/td> 551K
代理商: DS21348T
DS21348/Q348
48 of 73
9.4 G.703 Synchronization Signal
The DS21348 is capable of receiving a 2.048MHz square-wave synchronization clock as specified in
section 10 of ITU G.703. In order to use the DS21348 in this mode, set the Receive Synchronization
Clock Enable (CCR5.3) = 1. The DS21348 can also transmit the 2.048MHz square-wave synchronization
clock as specified in section 10 of G.703. In order to transmit the 2.048 MHz clock, set the Transmit
Synchronization Clock Enable (CCR5.2) = 1.
LINE BUILD OUT SELECT FOR E1 IN REGISTER CCR4 (ETS = 0)
Table 9-1
L2
L1
L0
V
DD
APPLICATION
0
0
0
3.3V
75 normal
0
0
1
3.3V
120 normal
1
0
0
3.3V
75 w/ high return loss
1
0
1
3.3V
120 w/ high return loss
N
1:2
1:2
1:2
1:2
RETURN LOSS
NM
NM
21dB
21dB
Rt
0
0
6.2
11.6
Note:
See Figure 9-1, Figure 9-2, and Figure 9-3.
LINE BUILD OUT SELECT FOR T1 IN REGISTER CCR4 (ETS = 1)
Table 9-2
L2
L1
L0
V
DD
APPLICATION
0
0
0
3.3V
DSX-1 (0 to 133 feet) /
0 DB CSU
0
0
1
3.3V
DSX-1 (133 to 266 feet)
0
1
0
3.3V
DSX-1 (266 to 399 feet)
0
1
1
3.3V
DSX-1 (399 to 533 feet)
1
0
0
3.3V
DSX-1 (533 to 655 feet)
1
0
1
3.3V
-7.5dB CSU
1
1
0
3.3V
-15dB CSU
1
1
1
3.3V
-22.5dB CSU
N
1:2
RETURN LOSS
NM
Rt
0
1:2
1:2
1:2
1:2
1:2
1:2
1:2
NM
NM
NM
NM
NM
NM
NM
0
0
0
0
0
0
0
Note:
See Figure 9-1, Figure 9-2, and Figure 9-3.
TRANSFORMER SPECIFICATIONS FOR 3.3V OPERATION
Table 9-3
SPECIFICATION
Turns Ratio 3.3V Applications
Primary Inductance
Leakage Inductance
Intertwining Capacitance
Transmit Transformer DC Resistance
Primary (Device Side)
Secondary
Receive Transformer DC Resistance
Primary (Device Side)
Secondary
RECOMMENDED VALUE
1:1 (receive) and 1:2 (transmit) ±2%
600 H minimum
1.0 H maximum
40pF maximum
1.0 maximum
2.0 maximum
1.2 maximum
1.2 maximum
相關(guān)PDF資料
PDF描述
DS21348TN 3.3V E1/T1/J1 Line Interface
DS21352 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21352L 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21352LN 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
DS21552L 3.3V DS21352 and 5V DS21552 T1 Single-Chip Transceivers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21348T+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TNB 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray