參數(shù)資料
型號(hào): XRT7300IV-F
廠商: Exar Corporation
文件頁數(shù): 22/55頁
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 SGL 44TQFP
標(biāo)準(zhǔn)包裝: 160
類型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: DS3,E3,STS-1
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 44-LQFP
供應(yīng)商設(shè)備封裝: 44-TQFP(10x10)
包裝: 托盤
其它名稱: 1016-1635
XRT7300IV-F-ND
XRT7300
E3/DS3/STS-1 LINE INTERFACE UNIT
REV. 1.1.2
25
TRANSFORMER VENDOR INFORMATION
Pulse
Corporate Office
12220 World Trade Drive
San Diego, CA 92128
Tel: (619)-674-8100
FAX: (619)-674-8262
Europe
1 & 2 Huxley Road
The Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
Tel: 44-1483-401700
FAX: 44-1483-401701
Asia
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
Tel: 65-287-8998
FAX: 65-280-0080
3.0
THE RECEIVE SECTION
Figure 1 indicates that the XRT7300 Receive Section
consists of the following blocks:
AGC/Equalizer
Peak Detector
Slicer
Clock Recovery PLL
Data Recovery
HDB3/B3ZS Decoder
The purpose of the XRT7300 Receive Section is to
take an incoming attenuated/distorted bipolar signal
from the line and encode it back into the TTL/CMOS
format where it can be received and processed by
digital circuitry in the Terminal Equipment.
3.1
INTERFACING THE RECEIVE SECTION OF THE
XRT7300 TO THE LINE
By design, the Receive Section of the XRT7300 can
be transformer-coupled or capacitive-coupled to the
line. The specification documents for E3, DS3 and
STS-1 all specify 75Ohm termination loads when
transmitting over coaxial cable. It is recommended to
TRANSFORMER RECOMMENDATIONS
PARAMETER
VALUE
Turns Ratio
1:1
Primary Inductance
40
H
Isolation Voltage
1500Vrms
Leakage Inductance
0.6
H
PART NUMBER
VENDOR
INSULATION
PACKAGE TYPE
PE-68629
Pulse
3000V
Large Thru-Hole
PE-65966
Pulse
1500V
Small Thru-Hole
PE-65967
Pulse
1500V
Small SMT
T3001
Pulse
1500V
Small SMT
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