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

through

DS26303

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

DS26303

PIN-PACKAGE

144 eLQFP

impedance in E1

REV: 053107

impedance.

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