參數(shù)資料
型號： XRT73L02
廠商： Exar Corporation
英文描述： 2 Channel E3/DS3/STS-1 Line Interface Unit(2通道 E3/DS3/STS-1線接口單元)
中文描述： 2頻道E3/DS3/STS-1線路接口單元（2通道E3/DS3/STS-1線接口單元）
文件頁數(shù)： 3/62頁
文件大小： 716K
代理商： XRT73L02
á
XRT73L02
2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
PRELIMINARY
REV. P1.1.0
I
TABLE OF CONTENTS
General description ........................................................................................................... 1
FEATURES ................................................................................................................................................ 1
APPLICATIONS ......................................................................................................................................... 1
XRT73L02 BLOCK DIAGRAM ................................................................................................................... 1
TRANSMIT INTERFACE CHARACTERISTICS ........................................................................................ 2
RECEIVE INTERFACE CHARACTERISTICS ........................................................................................... 2
PIN OUT OF THE XRT73L02 .................................................................................................................... 2
TABLE OF CONTENTS ....................................................................................................... I
Pin Descriptions ................................................................................................................. 3
ELECTRICAL CHARACTERISTICS ................................................................................. 14
ABSOLUTE MAXIMUM RATINGS ................................................................................................... 14
Figure 1.Transmit Pulse Amplitude Test Circuit for E3, DS3 and STS-1 Rates (typical channel shown) ...... 16
Figure 2.Timing Diagram of the Transmit Terminal Input Interface ................................................................ 16
Figure 3.Timing Diagram of the Receive Terminal Output Interface .............................................................. 16
Figure 4.Microprocessor Serial Interface Data Structure ............................................................................... 20
Figure 5.Timing Diagram for the Microprocessor Serial Interface .................................................................. 21
SYSTEM DESCRIPTION ................................................................................................... 22
THE TRANSMIT SECTION - CHANNELS 0 AND 1 ................................................................................ 22
THE RECEIVE SECTION - CHANNELS 0 AND 1 ................................................................................... 22
THE MICROPROCESSOR SERIAL INTERFACE ................................................................................... 22
Table 1:Role of Microprocessor Serial Interface pins when the XRT73L02 is operating in the Hardware Mode
22
Figure 6.Functional Block Diagram of the XRT73L02 .................................................................................... 23
1.0 SELECTING THE DATA RATE ......................................................................................................... 23
1.1 C
ONFIGURING
C
HANNEL
(
N
) ........................................................................................................... 23
Table 2:Addresses and Bit Formats of XRT73L02 Command Registers ....................................................... 24
Table 3:Selecting the Data Rate for Channel (n) of the XRT73L02, via the E3_Ch_(n) and STS-1/DS3_Ch_(n)
input pins (Hardware Mode) .............................................................................................................. 24
COMMAND REGISTER CR4-(N) .................................................................................................... 25
Table 4:Selecting the Data Rate for Channel (n) of the XRT73L02 via the STS-1/DS3_Ch_(n) and the
E3_Ch_(n) bit-fields in the Appropriate Command Register (HOST Mode) ...................................... 25
2.0 THE TRANSMIT SECTION ............................................................................................................... 25
2.1 T
HE
T
RANSMIT
L
OGIC
B
LOCK
......................................................................................................... 25
Accepting Dual-Rail Data from the Terminal Equipment ................................................................... 25
Figure 7. The typical interface for Data Transmission in Dual-Rail Format from the Transmitting Terminal Equip-
ment to the Transmit Section of a channel of the XRT73L02 ........................................................... 26
Figure 8.How the XRT73L02 Samples the data on the TPData and TNData input pins ................................ 26
Configure Channel (n) to accept Single-Rail Data from the Terminal Equipment ............................. 26
COMMAND REGISTER CR1-(N) ..................................................................................................... 26
Figure 9.The Behavior of the TPData and TxClk Input Signals while the Transmit Logic Block is Accepting Sin-
gle-Rail Data from the Terminal Equipment ..................................................................................... 27
2.2 T
HE
T
RANSMIT
C
LOCK
D
UTY
C
YCLE
A
DJUST
C
IRCUITRY
................................................................. 27
2.3 T
HE
HDB3/B3ZS E
NCODER
B
LOCK
............................................................................................... 27
B3ZS Encoding .................................................................................................................................. 27
相關PDF資料
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XRT73L03A 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
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相關代理商/技術參數(shù)
參數(shù)描述
XRT73L02M 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73L02MES 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
XRT73L02MIV 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73L02MIV-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: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT73L02MIVTR-F 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
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