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T1/E1/J1 Line Interface Units (LIU)



DATA SHEETS
Part Number Description Key Advantages
MAX9476 Low-Jitter, 8kHz Reference Clock Synthesizer Outputs 35.328MHz

Clock Generator is Optimized for xDSL CO Line Cards and Telecom Systems Requiring Low-Jitter Clock Outputs
DS21455, DS21458 Quad T1/E1/J1 Transceivers

Industry's First 4-Port Transceivers to Switch Among All T1, E1, and J1 Standards without External Component Changes
DS21Q58 E1 Quad Transceiver

DS21Q59 E1 Quad Transceiver

DS21448 3.3V E1/T1/J1 Quad Line Interface

3.3V E1/T1/J1 Quad Line Interface Unit for Short-Haul and Long-Haul Applications
DK2000 High-Performance Demo Kit Motherboard

DS21349 3.3V T1/J1 Line Interface Unit

DS21Q50 Quad E1 Transceiver

E1 Quad Transceiver Contains All the Functions Necessary for Connecting to Four E1 Lines
DS2148, DS21Q48 5V E1/T1/J1 Line Interface

DS21348, DS21Q348 3.3V E1/T1/J1 Line Interface




Key Specifications:

Clock Generators
Part Number Applications fIN
(MHz)
fIN
(MHz)
fOUT
(MHz)
fOUT
(MHz)
Fixed or Continuous Frequency Output Levels Out-
puts
PLLs Spread Spectrum Output Jitter
(ps)
VSUPPLY
(V)
Package/Pins
min max min max RMS
MAX9476 
T1/E1
T3/E3
xDSL
0.008 0.008 35.328 35.328 Fixed LVCMOS 6 1 No 4 3.3
TSSOP/24
See All Clock Generators (34)

T/E Carrier & Packetized Products
Part Number Transmission Standard Functions Channels VSUPPLY
(V)
EV Kit RoHS Available Package/Pins Smallest Available Pckg.
(mm2)
max w/pins
DS21455  T1/E1/J1 Framer + LIU 4 3.3 - Yes
PBGA/256
729
DS21458  T1/E1/J1 Framer + LIU 4 3.3 Yes Yes
CSBGA/256
289
DK2000 
ATM
E1
STS-1
T1/E1/J1
T1/J1
T3/E3
- -
3.3
5
- Yes
See Data Sheet
-
DS21448  T1/E1/J1 LIU 4 3.3 Yes Yes
LQFP/128
TEPBGA/144
289
DS21Q58  E1 Framer + LIU 4 3.3 - Yes
LQFP/100
262.4
DS21Q59  E1 Framer + LIU 4 3.3 Yes Yes
LQFP/100
262.4
DS21Q50  E1 Framer + LIU 4 3.3 - Yes
LQFP/100
262.4
DS21349  T1/J1 LIU 1 3.3 Yes See Data Sheet
PLCC/28
158
DS21348  T1/E1/J1 LIU 1 3.3 Yes Yes
CSBGA/49
TQFP/44
49
DS2148  T1/E1/J1 LIU 1 5 Yes Yes
CSBGA/49
TQFP/44
49
See All T/E Carrier & Packetized Products (100)





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