DS26303LN-120+A3 Maxim Integrated Products, DS26303LN-120+A3 Datasheet
DS26303LN-120+A3
Manufacturer Part Number
DS26303LN-120+A3
Description
Buffers & Line Drivers 3.3V E1/T1/J1 Short Haul Octal LIU
Manufacturer
Maxim Integrated Products
Datasheet
1.DS26303LN-120A3.pdf
(101 pages)
Specifications of DS26303LN-120+A3
Lead Free Status / Rohs Status
Details
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GENERAL DESCRIPTION
The DS26303 is an 8-channel short-haul line
interface unit (LIU) that supports E1/T1/J1 from a
single 3.3V power supply. A wide variety of
applications
termination or external termination. A single bill of
material can support E1/T1/J1 with minimum external
components. Redundancy is supported through
nonintrusive monitoring, optimal high-impedance
modes, and configurable 1:1 or 1+1 backup
enhancements. An on-chip synthesizer generates the
E1/T1/J1 clock rates by a single master clock input of
various frequencies. Two clock output references are
also offered.
APPLICATIONS
T1 Digital Cross-Connects
ATM and Frame Relay Equipment
Wireless Base Stations
ISDN Primary Rate Interface
E1/T1/J1 Multiplexer and Channel Banks
E1/T1/J1 LAN/WAN Routers
FUNCTIONAL DIAGRAM
RTIP
RRING
TTTIP
TRING
Jtag
Transmitter
are
Receiver
Software Control,
Hardware Control
and JTAG
supported
1
through
DS26303
8
MODESEL
RPOS
RNEG
RCLK
TPOS
TNEG
TCLK
RLOS
internal
1 of 101
FEATURES
ORDERING INFORMATION
DS26303L-XXX
DS26303L-XXX+
DS26303LN-XXX
DS26303LN-XXX+
Note: When XXX is 075, the part defaults to 75
mode; when XXX is 120, the part defaults to 120
+ Denotes a lead-free/RoHS-compliant package.
e = Exposed Pad.
3.3V, E1/T1/J1, Short-Haul,
8 Complete E1, T1, or J1 Short-Haul Line
Interface Units
Independent E1, T1, or J1 Selections
Internal Software-Selectable Transmit and
Receive-Side Termination
Crystal-Less Jitter Attenuator
Selectable Single-Rail and Dual-Rail Mode
and AMI or HDB3/B8ZS Line Encoding and
Decoding
Detection and Generation of AIS
Digital/Analog Loss-of-Signal Detection as
per T1.231, G.775, and ETS 300 233
External Master Clock can be Multiple of
2.048MHz or 1.544MHz for T1/J1 or E1
Operation; This Clock will be Internally
Adapted for T1 or E1 Use
Built-In BERT Tester for Diagnostics
8-Bit Parallel Interface Support for Intel or
Motorola Mode or a 4-Wire Serial Interface
Hardware Mode Interface Support
Transmit Short-Circuit Protection
G.772 Nonintrusive Monitoring
Specification Compliance to the Latest T1
and E1 Standards—ANSI T1.102, AT&T Pub
62411, T1.231, T1.403, ITU-T G.703, G.742,
G.775, G.823, ETS 300 166, and ETS 300 233
Single 3.3V Supply with 5V Tolerant I/O
JTAG Boundary Scan as per IEEE 1149.1
144-Pin eLQFP Package
Octal Line Interface Unit
PART
-40°C to +85°C
TEMP RANGE
-40°C to +85°C
0°C to +70°C
0°C to +70°C
DS26303
PIN-PACKAGE
144 eLQFP
144 eLQFP
144 eLQFP
144 eLQFP
Ω
Ω
impedance in E1
REV: 053107
impedance.
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