參數(shù)資料
型號: DS2148T
英文描述: 5V E1/T1/J1 Line Interface
中文描述: 5V的E1/T1/J1線路接口
文件頁數(shù): 19/75頁
文件大?。?/td> 544K
代理商: DS2148T
DS2148/Q48
19 of 75
ACRONYM
PIN
I/O
DESCRIPTION
Transmit Clock.
A 2.048 MHz or 1.544 MHz primary clock. Used
to clock data through the transmit side formatter.
3-State Control.
Set high to 3-state all outputs and I/O pins
(including the parallel control port). Set low for normal operation.
Useful in board level testing.
Transmit Negative Data.
Sampled on the falling edge (CES = 0) or
the rising edge (CES = 1) of TCLK for data to be transmitted out
onto the line.
Transmit Power-Down.
0 = normal transmitter operation
1 = powers down the transmitter and 3-states the TTIP and TRING
pins
Transmit Positive Data.
Sampled on the falling edge (CES = 0) or
the rising edge (CES = 1) of TCLK for data to be transmitted out
onto the line.
Transmit Tip and Ring [TTIP & TRING].
Analog line driver
outputs. These pins connect via a step-up transformer to the line. See
Section 7 for details.
Transmit Data Source Select Bits 0 & 1 [H/W Mode].
These
inputs determine the source of the transmit data. See Table 4-6.
Positive Supply.
5.0V ±5%
TCLK
43
I
TEST
26
I
TNEG
42
I
TPD
13
I
TPOS
41
I
TTIP/
TRING
34/
37
O
TX0/
TX1
V
DD
14/
15
21/
36
20
22/
35
I
-
VSM
V
SS
I
-
Voltage Supply Mode.
Should be tied high for 5V operation
Signal Ground.
NOTES:
1) G.703 requires an accuracy of ±50ppm for both T1 and E1. TR62411 and ANSI specs require an
accuracy of ±32ppm for T1 interfaces.
2) * Denotes active low.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2148T+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V 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
DS2148TA2 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V 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
DS2148TB 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2148TC1 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2148TN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 5V 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