REV. 1.2.1 TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT NOTES:<" />
參數(shù)資料
型號: XRT59L921IB
廠商: Exar Corporation
文件頁數(shù): 14/32頁
文件大小: 0K
描述: IC LIU E1 21CH 316STBGA
標準包裝: 60
類型: 線路接口裝置(LIU)
驅動器/接收器數(shù): 21/21
規(guī)程: E1
電源電壓: 3.13 V ~ 3.46 V
安裝類型: 表面貼裝
封裝/外殼: 316-LBGA
供應商設備封裝: 316-STBGA(21x21)
包裝: 托盤
XRT59L921
19
REV. 1.2.1
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
NOTES:
1.
Figure 7 and Figure 8, indicate that for both 75 and 120 applications, the user should connect a 9.1
resistor, in series, between the TTIP/TRing outputs and the transformers.
2. Figure 5 and 6, indicate that the user should use a 1:2 STEP-UP Transformer.
FIGURE 7. ILLUSTRATION OF HOW TO INTERFACE THE TRANSMIT SECTIONS OF THE XRT59L921 TO THE LINE (FOR
75
APPLICATIONS)
FIGURE 8. ILLUSTRATION OF HOW TO INTERFACE THE TRANSMIT SECTIONS THE XRT59L921 TO THE LINE (FOR
120
APPLICATIONS)
TRANSMIT TRANSFORMER RECOMMENDATIONS
PARAMETER
VALUE
Turns Ratio
1:2
Primary Inductance
Isolation Voltage
Leakage Inductance
9.1
9.1
TxPOS_n
TxNEG_n
TxClk_n
XRT59L921
TxClk_n
TxPOS_n
TxNEG_n
TTIP_n
TRING_n
1:2
Coaxial cable
9.1
9.1
TxPOS_n
TxNEG_n
TxClk_n
XRT59L921
TxClk_n
TxPOS_n
TxNEG_n
TTIP_n
TRING_n
TRING_Channel_n
TTIP_Channel_n
1:2
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