V<" />
參數(shù)資料
型號: DS21448DK
廠商: Maxim Integrated Products
文件頁數(shù): 33/60頁
文件大?。?/td> 0K
描述: KIT DESIGN LIU DS21448 T1/J1/E1
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
主要目的: 電信,線路接口單元(LIU)
已用 IC / 零件: DS21448
已供物品: 板,子卡,CD
DS21448 3.3V T1/E1/J1 Quad Line Interface
39 of 60
Figure 7-4. Dual Connector-Protected Interface Using Receive Termination
VDD
VSS
TTIP
TRING
RTIP
RRING
Dallas
Semiconductor
DS21448
VDD
VSS
0.01
F
0.01
F
0.1
F
+
10
F
0.1
F
S
Rt
1.0
F
MCLK
2.048MHz (THIS CAN ALSO
BE 1.544MHz FOR T1 ONLY
OPERATION)
0.1
F
S
68
F
60
S
FUSE
BALANCED LINE
(100
/120)
UNBALANCED
LINE (75
)
S
FUSE
0.22
F
0.22
F
L1
S
FUSE
S
FUSE
0.22
F
0.22
F
L1
0.8:1:1CT
51.1
BALANCED LINE
(100
/120)
UNBALANCED
LINE (75
)
1:1
0.8:1
1.6:1
2:1
0.8:1:1CT
NOTE 1: REFER TO
APPLICATION NOTE 384 FOR A COMPLETE DISCUSSION OF THIS CIRCUIT.
NOTE 2:
ALL RESISTOR VALUES ARE ±1%.
NOTE 3:
THE FUSES ARE OPTIONAL TO PREVENT AC POWER LINE CROSSES FROM COMPROMISING THE TRANSFORMERS.
NOTE 4:
S IS A SIDACTOR.
NOTE 5:
THE RT RESISTORS ARE USED TO INCREASE THE TRANSMITTER RETURN LOSS (Table 7-C). NO RETURN LOSS IS REQUIRED
FOR T1 APPLICATIONS.
NOTE 6:
THE 68
F IS USED TO KEEP THE LOCAL POWER PLANE POTENTIAL WITHIN TOLERANCE DURING A SURGE.
相關PDF資料
PDF描述
382LX223M050A052 CAP ALUM 22000UF 50V 20% SNAP
RBC28DCMN CONN EDGECARD 56POS .100 WW
GBM24DCAD CONN EDGECARD 48POS R/A .156 SLD
RP08-2415DAW CONV DC/DC 8W 9-36VIN +/-15VOUT
VI-J5M-EZ-F3 CONVERTER MOD DC/DC 10V 25W
相關代理商/技術參數(shù)
參數(shù)描述
DS21448G+ 功能描述:網(wǎng)絡控制器與處理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21448GN+ 功能描述:網(wǎng)絡控制器與處理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21448L 功能描述:網(wǎng)絡控制器與處理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21448L+ 功能描述:網(wǎng)絡控制器與處理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21448L+W 功能描述:網(wǎng)絡控制器與處理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray