參數(shù)資料
型號： DS21348TN
廠商： Maxim Integrated Products
文件頁數(shù)： 47/76頁
文件大?。?/td> 0K
描述： IC LIU LN T1/E1/J1 3.3V 44-TQFP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
產(chǎn)品變化通告： Product Discontinuation 20/Feb/2012
標準包裝： 160
類型： 線路接口裝置（LIU）
驅(qū)動器/接收器數(shù)： 1/1
規(guī)程： T1/E1/J1
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 44-TQFP
供應商設備封裝： 44-TQFP（10x10）
包裝： 托盤
DS21348/DS21Q348
51 of 76
7.4 G.703 Synchronization Signal
The DS21348 can receive a 2.048MHz square-wave synchronization clock as specified in Section 13 of
ITU G.703(10/98). 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. 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
(V)
APPLICATION
N
RETURN LOSS
(dB)
Rt (
)
0
3.3
75
normal
1:2
N.M.
0
1
3.3
120
normal
1:2
N.M.
0
1
0
3.3
75
with high return loss
1:2
21
6.2
1
0
1
3.3
120
with high return loss
1:2
21
11.6
Note: See Figure 7-1, Figure 7-2, and Figure 7-3. N.M. = Not meaningful.
Table 7-2. Line Build-Out Select for T1 in Register CCR4 (ETS = 1)
L2
L1
L0
VDD
(V)
APPLICATION
N
RETURN LOSS
(dB)
Rt (
)
0
3.3
DSX-1 (0 to 133 feet)/
0dB CSU
1:2
N.M.
0
1
3.3
DSX-1 (133 to 266 feet)
1:2
N.M.
0
1
0
3.3
DSX-1 (266 to 399 feet)
1:2
N.M.
0
1
3.3
DSX-1 (399 to 533 feet)
1:2
N.M.
0
1
0
3.3
DSX-1 (533 to 655 feet)
1:2
N.M.
0
1
0
1
3.3
-7.5dB CSU
1:2
N.M.
0
1
0
3.3
-15dB CSU
1:2
N.M.
0
1
3.3
-22.5dB CSU
1:2
N.M.
0
Note: See Figure 7-1, Figure 7-2, and Figure 7-3. N.M. = Not meaningful.
Table 7-3. Transformer Specifications for 3.3V Operation
SPECIFICATION
RECOMMENDED VALUE
Turns Ratio 3.3V Applications
1:1 (receive) and 1:2 (transmit) ±2%
Primary Inductance
600
H minimum
Leakage Inductance
1.0
H maximum
Intertwining Capacitance
40pF maximum
Transmit Transformer DC Resistance
Primary (Device Side)
Secondary
1.0
maximum
2.0
maximum
Receive Transformer DC Resistance
Primary (Device Side)
Secondary
1.2
maximum
1.2
maximum
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21348TN+ 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348TNB 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21348T-W 功能描述:網(wǎng)絡控制器與處理器 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21349 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3.3V T1/J1 Line Interface Unit
DS21349DK 功能描述:網(wǎng)絡開發(fā)工具 DS21349 Design Kit RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
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