參數(shù)資料
型號(hào): XRT73L02MIV-F
廠(chǎng)商: Exar Corporation
文件頁(yè)數(shù): 22/46頁(yè)
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 2CH 100TQFP
標(biāo)準(zhǔn)包裝: 90
類(lèi)型: 線(xiàn)路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 2/2
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-TQFP(14x14)
包裝: 托盤(pán)
xr
XRT73L02M
TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.0.0
27
The Equalizer also contain an additional 20 dB gain stage to provide the line monitoring capability of the resis-
tively attenuated signals which may have 20dB flat loss. This capability can be turned on by setting
the
RxMON_n bits in the control register or by setting the RxMON pin “High”.
5.0.1.1
INTERFERENCE TOLERANCE:
For E3 mode, ITU-T G.703 Recommendation specifies that the receiver be able to recover error-free clock and
data in the presence of a sinusoidal interfering tone signal. For DS3 and STS-1 modes, the same recommen-
dation is being used. Figure 17 shows the configuration to test the interference margin for DS3/STS1. Figure
18 shows the set up for E3.
FIGURE 17. INTERFERENCE MARGIN TEST SET UP FOR DS3/STS-1
FIGURE 18. INTERFERENCE MARGIN TEST SET UP FOR E3.
TABLE 9: INTERFERENCE MARGIN TEST RESULTS
MODE
CABLE LENGTH (ATTENUATION)INTERFERENCE TOLERANCE
E3
0 dB
- 17 dB
12 dB
-15 dB
Test Equipment
Pattern Generator
2 23 -1 PRBS
Sine Wave
Generator
N
S
0 to 900 feet
Coaxial Cable
DUT
(XRT73L02M)
Attenuator
DS3 = 22.368 MHz
STS-1 = 25.92 MHz
Test Equipment
Noise Generator
2 23 -1 PRBS
Signal Source
N
S
0 to 12 dB Cable Loss
DUT
(XRT73L02M)
Attenuator 1
Attenuator 2
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