參數(shù)資料
型號： DS2148G
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)： 15/75頁
文件大?。?/td> 544K
代理商： DS2148G
DS2148/Q48
15 of 75
ACRONYM
PIN
I/O
DESCRIPTION
Receive Negative Data.
Updated on the rising edge (CCR2.0 = 0)
or the falling edge (CCR2.0 = 1) of RCLK with the bipolar data out
of the line interface. Set NRZE (CCR1.6) to a one for NRZ
applications. In NRZ mode, data will be output on RPOS while a
received error will cause a positive-going pulse synchronous with
RCLK at RNEG. See section 8.4 for details.
Receive Positive Data.
Updated on the rising edge (CCR2.0 = 0) or
the falling edge (CCR2.0 = 1) of RCLK with bipolar data out of the
line interface. Set NRZE (CCR1.6) to a one for NRZ applications. In
NRZ mode, data will be output on RPOS while a received error will
cause a positive-going pulse synchronous with RCLK at RNEG. See
section 8.4 for details.
Receive Tip and Ring.
Analog inputs for clock recovery circuitry.
These pins connect via a 1:1 transformer to the line. See Section 7
for details.
Serial Clock.
Serial bus clock input.
Serial Data Input.
Sampled on rising edge (ICES = 0) or the falling
edge (ICES = 1) of SCLK.
Serial Data Output.
Valid on the falling edge (OCES = 0) or the
rising edge (OCES = 1) of SCLK.
Transmit Clock.
A 2.048 MHz or 1.544 MHz primary clock. Used
to clock data through the transmit side formatter. Can be sourced
internally by MCLK or RCLK. See Common Control Register 1 and
Figure 3-3.
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 (CCR2.1 =
0) or the rising edge (CCR2.1 = 1) of TCLK for data to be
transmitted out onto the line.
Transmit Positive Data.
Sampled on the falling edge (CCR2.1 = 0)
or the rising edge (CCR2.1 = 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.
Positive Supply.
5.0V ±5%
RNEG
39
O
RPOS
38
O
RTIP/
RRING
27/
28
I
SCLK
5
I
SDI
6
I
SDO
7
O
TCLK
43
I
TEST
26
I
TNEG
42
I
TPOS
41
I
TTIP/
TRING
34/
37
O
V
DD
21/
36
20
22/
35
-
VSM
V
SS
I
-
Voltage Supply Mode.
Should be tied high for 5V operation
Signal Ground.
相關(guān)PDF資料
PDF描述
DS2148GN 5V E1/T1/J1 Line Interface
DS2148T 5V E1/T1/J1 Line Interface
DS2148TN 5V E1/T1/J1 Line Interface
DS21Q48 5V E1/T1/J1 Line Interface
DS21Q48N 5V E1/T1/J1 Line Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2148G+ 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2148GB 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
DS2148GN 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
DS2148GN+ 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2148GNB 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
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