QuickView - DS26324 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit


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DS26324 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit

3.3V E1/T1/J1 Short-Haul 16-Port Line Interface Unit Provides 16 Independent Receivers and Transmitters in a Single BGA Package

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Status

Active: In Production.

Description

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The DS26324 is a 16-channel short-haul line interface unit (LIU) that supports E1/T1/J1 from a single 3.3V power supply. A wide variety of applications are supported through internal impedance matching. A single bill of material can support E1/T1/J1 that requires no external termination. 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. The device is offered in a 256-pin TE-CSBGA, the smallest package available for a 16-channel LIU.

An evaluation kit is available: DS26324DK, DS26334DK

Key Features Applications/Uses

16 E1, T1, or J1 Short-Haul Line Interface Units
Independent E1, T1 or J1 Selections
Fully Internal Impedance Match Requires No External Resistors
Software-Selectable Transmit and Receive-Side Impedance Match
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 Usage
Receiver Signal Level Indicator from -2.5dB to -20dB in 2.5dB Increments
Two Built-In BERT Testers for Diagnostics
8-Bit Parallel Interface Support for Intel or Motorola Mode or a 4-Wire Serial Interface
Transmit Short-Circuit Protection
G.772 Nonintrusive Monitoring
Receive Monitor Mode Handles Combinations of 14dB to 20dB of Resistive Attenuation Along with 12dB to 30dB of Cable Attenuation
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

ATM and Frame Relay Equipment
E1/T1/J1 LAN/WAN Routers
E1/T1/J1 Multiplexer and Channel Banks
ISDN Primary Rate Interface
T1 Digital Cross-Connects
Wireless Base Stations