參數(shù)資料
型號: DS2148DK
廠商: Maxim Integrated Products
文件頁數(shù): 43/73頁
文件大?。?/td> 0K
描述: KIT DESIGN LIU DS2148 3/5V T1/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: DS2148
已供物品:
DS2148/DS21Q48
48 of 73
7.4 G.703 Synchronization Signal
The DS2148 is capable of receiving a 2.048MHz square-wave synchronization clock as specified in
Section 13 of ITU G.703 (10/98). To use the DS2148 in this mode, set the receive synchronization clock
enable (CCR5.3) = 1. The DS2148 can also transmit the 2.048MHz square-wave synchronization clock as
specified in Section 10 of G.703. To transmit the 2.048MHz clock, set the transmit synchronization clock
enable (CCR5.2) = 1.
Table 7-1. Line Build-Out Select for E1 in Register CCR4 (ETS = 0)
L2
L1
L0
VDD
APPLICATION
N
RETURN LOSS
Rt
0
5V
75
normal
1:1.36
N.M.
0
0
1
5V
120
normal
1:1.36
N.M.
0
1
0
5V
75
w/ high return loss
1:1.36
21dB
18
1
0
1
5V
120
w/ high return loss
1:1.36
21dB
27
N.M. = Not meaningful
Table 7-2. Line Build-Out Select for T1 in Register CCR4 (ETS = 1)
L2
L1
L0
VDD
APPLICATION
N
RETURN LOSS
Rt
0
5V
DSX-1 (0 to 133 feet) /
0dB CSU
1:1.36
N.M.
0
0
1
5V
DSX-1 (133 to 266 feet)
1:1.36
N.M.
0
0
1
0
5V
DSX-1 (266 to 399 feet)
1:1.36
N.M.
0
0
1
5V
DSX-1 (399 to 533 feet)
1:1.36
N.M.
0
1
0
5V
DSX-1 (533 to 655 feet)
1:1.36
N.M.
0
1
0
1
5V
-7.5dB CSU
1:1.36
N.M.
0
1
0
5V
-15dB CSU
1:1.36
N.M.
0
1
5V
-22.5dB CSU
1:1.36
N.M.
0
N.M. = Not meaningful
Table 7-3. Transformer Specifications for 5V Operation
SPECIFICATION
RECOMMENDED VALUE
Turns Ratio 5V Applications
1:1(receive) and 1:1.36(transmit) ±2%
Primary Inductance
600
H minimum
Leakage Inductance
1.0
H maximum
Interwinding Capacitance
40pF maximum
Transmit Transformer DC Resistance
Primary (Device Side)
Secondary
1.2
maximum
1.2
maximum
Receive Transformer DC Resistance
Primary (Device Side)
Secondary
1.2
maximum
1.2
maximum
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DS2148G 功能描述:網(wǎng)絡控制器與處理器 IC 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
DS2148G+ 功能描述:網(wǎng)絡控制器與處理器 IC 5V E1/T1/J1 Line 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
DS2148GB 功能描述:網(wǎng)絡控制器與處理器 IC 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
DS2148GN 功能描述:網(wǎng)絡控制器與處理器 IC 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
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