參數資料
型號： XRT73R12IB
廠商： EXAR CORP
元件分類： 數字傳輸電路
英文描述： TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
中文描述： DATACOM, PCM TRANSCEIVER, PBGA420
封裝： 35 X 35 MM, TBGA-420
文件頁數： 2/87頁
文件大?。?/td> 436K
代理商： XRT73R12IB
XRT73R12
REV. P1.0.3
PRELIMINARY
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
2
FEATURES
RECEIVER
R
3
Redundancy)
On chip Clock and Data Recovery circuit for high
input jitter tolerance
Meets E3/DS3/STS-1 Jitter Tolerance Requirement
Detects and Clears LOS as per G.775
Receiver Monitor mode handles up to 20 dB flat
loss with 6 dB cable attenuation
On chip B3ZS/HDB3 encoder and decoder that can
be either enabled or disabled
On-chip clock synthesizer provides the appropriate
rate clock from a single 12.288 MHz Clock
Provides low jitter output clock
TRANSMITTER
R
3
Technology
(Reconfigurable,
Redundancy)
Compliant with Bellcore GR-499, GR-253 and ANSI
T1.102 Specification for transmit pulse
Tri-state Transmit output capability for redundancy
applications
Each Transmitter can be turned on or off
Transmitters provide Current Output Drive
CONTROL AND DIAGNOSTICS
Parallel Microprocessor Interface for control and
configuration
Supports
optional
internal
monitoring
Each channel supports Analog, Remote and Digital
Loop-backs
Single 3.3 V ± 5% power supply
5 V Tolerant digital inputs
Available in 420 pin TBGA Thermally enhanced
Package
Technology
(Reconfigurable,
Relayless
Relayless
Transmit
driver
- 40°C to 85°C Industrial Temperature Range
TRANSMIT INTERFACE CHARACTERISTICS
Accepts either Single-Rail or Dual-Rail data from
Terminal Equipment and generates a bipolar signal
to the line
Integrated Pulse Shaping Circuit
Built-in B3ZS/HDB3 Encoder (which can be
disabled)
Accepts Transmit Clock with duty cycle of 30%-
70%
Generates pulses that comply with the ITU-T G.703
pulse template for E3 applications
Generates pulses that comply with the DSX-3 pulse
template, as specified in Bellcore GR-499
-CORE
and ANSI T1.102_1993
Generates pulses that comply with the STSX-1
pulse template, as specified in Bellcore GR-253-
CORE
Transmitter can be turned off in order to support
redundancy designs
RECEIVE INTERFACE CHARACTERISTICS
Integrated Adaptive Receive Equalization (optional)
for optimal Clock and Data Recovery
Declares and Clears the LOS defect per ITU-T
G.775 requirements for E3 and DS3 applications
Meets Jitter Tolerance Requirements, as specified
in ITU-T G.823_1993 for E3 Applications
Meets Jitter Tolerance Requirements, as specified
in Bellcore GR-499-CORE for DS3 Applications
Declares Loss of Lock (LOL) Alarm
Built-in B3ZS/HDB3 Decoder (which can be
disabled)
Recovered Data can be muted while the LOS
Condition is declared
Outputs either Single-Rail or Dual-Rail data to the
Terminal Equipment
相關PDF資料
PDF描述
XRT74L73 3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT74L73IB 3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT74L74 4 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT74L74IB 4 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT75L00D E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
相關代理商/技術參數
參數描述
XRT73R12IB-F 功能描述:外圍驅動器與原件 - 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
XRT73R12IB-L 功能描述:LIN 收發(fā)器 12 Channel E3/DS3/ STS-1 LIU 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
XRT74L73 制造商:EXAR 制造商全稱:EXAR 功能描述:3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT74L73IB 制造商:EXAR 制造商全稱:EXAR 功能描述:3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT74L74 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
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