REV. 1.0.0 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT 23 2.8 Line Termination (TTIP/TRING) The output stage of the transmit path " />
參數(shù)資料
型號: XRT83SL28IV-F
廠商: Exar Corporation
文件頁數(shù): 18/47頁
文件大?。?/td> 0K
描述: IC LIU SH E1 8CH 144TQFP
標(biāo)準(zhǔn)包裝: 60
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 8/8
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: 144-LQFP
供應(yīng)商設(shè)備封裝: 144-TQFP(20x20)
包裝: 托盤
xr
XRT83SL28
REV. 1.0.0
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
23
2.8
Line Termination (TTIP/TRING)
The output stage of the transmit path generates standard bipolar signals to the line for both E1 (75 Ohm)
coaxial cable and E1 (120 Ohm) twisted pair. The XRT83L28 has built-in output impedance matching for both
75 Ohm and 120 Ohm operations. This eliminates the need to change any external components while
switching from 75 Ohm to 120 Ohm operation. The transmitter interface only requires one 0.68F DC blocking
capacitor with a 1:2 transformer as shown in Figure 17.
FIGURE 17. TYPICAL CONNECTION DIAGRAM USING INTERNAL TERMINATION
T
TIP
T
RING
XRT83SL28 LIU
1:2
Internal Impedance
Line Interface E1
C=0.68uF
One Bill of Materials
Transmitter
Output
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