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參數(shù)資料
型號: XRT75L04DIV-F
廠商: Exar Corporation
文件頁數(shù): 12/98頁
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 4CH 176TQFP
標(biāo)準(zhǔn)包裝: 72
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 4/4
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 176-LQFP
供應(yīng)商設(shè)備封裝: 176-TQFP(24x24)
包裝: 托盤
XRT75L04D
á
FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.1
2
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 Telcordia GR-499-CORE and
ANSI T1.102_1993.
Generates pulses that comply with the STSX-1 pulse template, as specified in Telcordia GR-253-CORE.
Transmitters can be turned off to support redundancy designs.
RECEIVE INTERFACE CHARACTERISTICS
Integrated Adaptive Receive Equalization 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.
Declares Loss of Signal (LOS) and Loss of Lock (LOL) Alarms.
Built-in B3ZS/HDB3 Decoder (which can be disabled).
FIGURE 1. BLOCK DIAGRAM OF THE XRT 75L04D
HOST/HW
STS-1/DS3_(n)
E3_(n)
REQEN_(n)
RTIP_(n)
RRing_(n)
SR/DR
XRT75L04D
RLB_(n)
RLOS_(n)
JATx/Rx
TPData_(n)
TNData_(n)
TxClk_(n)
TAOS_(n)
TxLEV_(n)
TxON_(n)
Channel 3
Channel 0
Channel 1..2
Notes: 1. (n) = 0, 1, 2 or 3 for respective Channels
2. Serial Processor Interface input pins are shared by the four Channels in "Host" Mode and redefined in the "Hardware" Mode.
Device
Monitor
MTIP_(n)
MRing_(n)
DMO_(n)
Timing
Control
TTIP_(n)
TRing_(n)
Tx
Pulse
Shaping
HDB3/
B3ZS
Encoder
RLOL_(n)
RxON
RxClkINV
RxClk_(n)
RPOS_(n)
RNEG_(n)/
LCV_(n)
Tx
Control
Jitter
Attenuator
MUX
Line
Driver
LLB_(n)
Invert
Remote
LoopBack
HDB3/
B3ZS
Decoder
MUX
AGC/
Equalizer
Peak Detector
LOS
Detector
Slicer
Jitter
Attenuator
Serial
Processor
Interface
Local
LoopBack
Clock & Data
Recovery
Clock
Synthesizer
E3Clk,DS3Clk,
STS-1Clk
RESET
CS
SClk
INT
SDO
SDI
CLKOUT
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