參數(shù)資料
型號: XRT83SH314IB-F
廠商: Exar Corporation
文件頁數(shù): 28/101頁
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 14CH 304TBGA
標(biāo)準(zhǔn)包裝: 27
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 14/14
規(guī)程: T1,E1,J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 304-BBGA
供應(yīng)商設(shè)備封裝: 304-PBGA(31x31)
包裝: 托盤
XRT83SH314
28
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.4
3.5.1
ATAOS (Automatic Transmit All Ones)
If ATAOS is selected by programming the appropriate global register, an AMI all ones signal will be transmitted
for each channel that experiences an RLOS condition. If RLOS does not occur, the ATAOS will remain inactive
until an RLOS on a given channel occurs. A simplified block diagram of the ATAOS function is shown in
FIGURE 19. SIMPLIFIED BLOCK DIAGRAM OF THE ATAOS FUNCTION
3.5.2
QRSS/PRBS Generation
The XRT83SH314 can transmit a QRSS/PRBS random sequence to a remote location from TTIP/TRING. To
select QRSS or PRBS, see the register map for programming details. The polynomial is shown in Table 10.
3.6
Transmit Pulse Shaper and Filter
If TCLK is not present, pulled "Low", or pulled "High" the transmitter outputs at TTIP/TRING will automatically
send an all ones or an all zero signal to the line by programming the appropriate global register. By default, the
transmitters will send all zeros. To send all ones, the TCLKCNL bit must be set "High".
TABLE 10: RANDOM BIT SEQUENCE POLYNOMIALS
RANDOM PATTERN
T1
E1
QRSS
220 - 1
PRBS
215 - 1
RLOS
ATAOS
TAOS
TTIP
TRING
Tx
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參數(shù)描述
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