參數(shù)資料
型號： XRT83SL30IV
廠商： EXAR CORP
元件分類： 數(shù)字傳輸電路
英文描述： SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
中文描述： DATACOM, PCM TRANSCEIVER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, TQFP-64
文件頁數(shù)： 17/76頁
文件大小： 376K
代理商： XRT83SL30IV
á
XRT83SL30
SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
PRELIMINARY
REV. P1.0.4
14
ALARM FUNCTION/OTHER
S
IGNAL
N
AME
P
IN
#
T
YPE
D
ESCRIPTION
ATAOS
27
I
Automatic Transmit “All Ones” Pattern
In
Hardware Mode
, a "High" level on this pin enables the automatic trans-
mission of an "All Ones" AMI pattern from the transmitter when the receiver
has detected an LOS condition. A "Low" level on this pin disables this func-
tion.
N
OTE
:
This pin is internally pulled “Low” with a 50k
resistor.
ICT
59
I
In-Circuit Testing (active "Low")
When this pin is tied “Low”, all output pins are forced to a “High” impedance
state for in-circuit testing.
Pulling RESET “Low” while ICT pin is also “Low” will put the chip in factory
test mode. This condition should never happen during normal operation.
N
OTE
:
Internally pulled “High” with a 50k
resistor.
NLCDE1
NLCDE0
33
34
I
Network Loop Code Detection Enable pin 1
Network Loop Code Detection Enable pin 0
In
Hardware Mode
, NLCDE[1:0] pins are used to control the Loop-Code
detection according to the following table:
When NLCDE1=”0” and NCLDE0=”1”, or NLCDE1=”1” and NLCDE0=”0”, the
chip is manually programed to monitor the receive data for the Loop-Up or
Loop-Down code respectively. When the presence of the “00001” or “001”
pattern is detected for more than 5 seconds, the NLCD pin is set to “1” and
the Host has the option to activate the loop-back function manually.
Setting the NLCDE1=”1” and NLCDE0=”1” enables the Automatic Loop-
Code detection and Remote-Loop-Back activation mode. As this mode is ini-
tiated, the state of the NLCD pin is reset to “0” and the chip is programmed to
monitor the receive data for the Loop-Up Code. If the “00001” pattern is
detected for longer than 5 seconds, the NLCD pin is set to “1”, Remote Loop-
Back is activated and the chip is automatically programed to monitor the
receive data for the Loop-Down code. The NLCD pin stays “High” even after
the chip stops receiving the Loop-Up code. The remote Loop-Back condition
is removed when the chip receives the Loop-Down code for more than 5 sec-
onds or if the Automatic Loop-Code detection mode is terminated.
NLCDE1
NLCDE0
Function
Disable Loop-Code
Detection
Detect Loop-Up Code in
Receive Data
Detect Loop-Down Code in
Receive Data
0
0
0
1
1
1
Automatic Loop-Code
Detection
1
0
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83SL30IV-F 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
XRT83SL30IVTR-F 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83SL314 制造商:EXAR 制造商全稱:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL314_05 制造商:EXAR 制造商全稱:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL314ES 功能描述:LIN 收發(fā)器 14 CHT1/E1 LIUSH RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
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