參數(shù)資料
型號(hào)： 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)： 36/75頁
文件大?。?/td> 544K
代理商： DS2148G
DS2148/Q48
36 of 75
RECEIVED ALARM CRITERIA
Table 7-1
ALARM
E1/T1
RUA1
E1
SET CRITERIA
Less than two zeros in two
frames (512 bits)
Over a 3ms window, five or less
zeros are received
255 (or 2048)
2
consecutive zeros
received
(G.775)
192 (or 1544)
2
consecutive zeros
are received
CLEAR CRITERIA
More than two zeros in two
frames (512 bits)
Over a 3ms window, six or more
zeros are received
In 255 bit times, at least 32 ones
are received
RUA1
T1
RCL
1
E1
RCL
1
T1
14 or more ones out of 112
possible bit positions are
received starting with the first
one received
NOTES:
1) Receive carrier loss (RCL) is also known as loss-of-signal (LOS) or Red Alarm in T1.
2) See CCR1.5 for details.
SR (06H): STATUS REGISTER
(MSB)
LUP
LDN
LOTC
RUA1
SYMBOL
POSITION
DESCRIPTION
LUP
(latched)
registers RUPCD1 and RUPCD2 is being received. See Section
6 for details.
LDN
(latched)
defined in registers RDNCD1 and RDNCD2 is being received.
See Section 6 for details.
LOTC
(real time)
transitioned for 5 sec ( 2 sec). Will force the LOTC pin high.
RUA1
(latched)
code is received at RRING and RTIP. See Table 7-1for details.
RCL
(latched)
exists at RRING and RTIP. See Table 7-1for details.
TCLE
(real time)
current limiter is activated whether the current limiter is enabled
or not.
TOCD
(real time)
that the TTIP and TRING outputs are open circuited.
PRBSD
(real time)
a 2
20
-1 (T1) Pseudo Random Bit Sequence (PRBS).
(LSB)
PRBSD
RCL
TCLE
TOCD
SR.7
Loop Up Code Detected.
Set when the loop up code defined in
SR.6
Loop Down Code Detected.
Set when the loop down code
SR.5
Loss of Transmit Clock.
Set when the TCLK pin has not
SR.4
Receive Unframed All Ones.
Set when an unframed all ones
SR.3
Receive Carrier Loss.
Set when a receive carrier loss condition
SR.2
Transmit Current Limit Exceeded.
Set when the 50mA (rms)
SR.1
Transmit Open Circuit Detect.
Set when the device detects
SR.0
PRBS Detect.
Set when the receive-side detects a 2
15
-1 (E1) or
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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