DS26303LN-120+A3 Maxim Integrated Products, DS26303LN-120+A3 Datasheet
![no-image](/images/manufacturer_photos/0/4/417/maxim_integrated_products_sml.jpg)
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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Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
www.maxim-ic.com
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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