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DS21448N The Analog Devices DS21448N is a quad-port E1/T1/J1 Line Interface Unit (LIU) designed for short- and long-haul applications. It operates from a 3.3V supply and is housed in a 144-TEPBGA package.
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DS21448N

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS21448N is a quad-port E1/T1/J1 Line Interface Unit (LIU) designed for short- and long-haul applications. It operates from a 3.3V supply and is housed in a 144-TEPBGA package.
✓ Total Stock: 1,391 pcs

DS21448N Available from 1 distributor

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Romaks Technologies ✓
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1,391 pcs
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DS21448N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Function
Interface
Lead Spacing
Mounting Type
Number of Circuits
Operating Temperature
Supplier Device Package
Voltage
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DS21448N Description

Short technical summary and product information.

The DS21448N from Analog Devices (formerly Maxim Integrated) is a versatile quad-port E1, T1, or J1 Line Interface Unit (LIU). It is engineered for both short-haul and long-haul telecommunications applications, integrating four independent transmitters and receivers into a single 144-pin PBGA package.

 

This LIU supports a wide range of features including software-selectable receive-side termination for 75Ω, 100Ω, and 120Ω impedances, and generates appropriate line build-outs for E1 and T1 applications. It incorporates AMI, HDB3, and B8ZS encoding/decoding, and offers a crystal-less jitter attenuator requiring only a 2.048MHz master clock.

 

The DS21448N operates on a 3.3V power supply and features a 144-TEPBGA (17x17) surface-mount package. It meets numerous industry standards including ITU G.703, G.704, and ANSI T1.408, making it suitable for applications such as integrated multiservice access platforms, T1/E1 cross-connects, multiplexers, channel banks, central-office switches, PBX interfaces, and T1/E1 LAN/WAN routers.

DS21448N Quick Information

Product Type: Telecom IC
Canonical Name: DS21448N Quad-Port E1/T1/J1 Line Interface Unit (LIU)
Subcategory: Telecom IC

DS21448N Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead-free/RoHS-compliant package

DS21448N Features

  • Four complete E1, T1, or J1 LIUs.
  • Supports long- and short-haul trunks.
  • Software-selectable receive-side termination.
  • 3.3V power supply operation.
  • Meets latest E1 and T1 specifications.

DS21448N Applications

  • Used in multiservice access platforms.
  • Suitable for T1/E1 cross-connects.
  • Applicable for central-office switches.
  • Designed for T1/E1 LAN/WAN routers.
  • Ideal for wireless base stations.

DS21448N FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the DS21448N?

The operating voltage for the DS21448N is between 3.135V and 3.465V.

What is the operating temperature range of the DS21448N?

The DS21448N operates in a temperature range of -40°C to 85°C.

What package type is the DS21448N supplied in?

The DS21448N is supplied in a 144-TEPBGA (17x17) package, which is a 144-BGA type for surface mounting.

What is the RoHS status of the DS21448N?

The DS21448N is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the DS21448N?

The Moisture Sensitivity Level (MSL) for the DS21448N is 1.

What telecom standards does the DS21448N comply with?

The DS21448N complies with numerous standards including ANSI.403-1999, ANSI T1.408, AT&T TR 62411, ITU G.703, G.704, G.706, G.736, G.775, G.823, I.431, O.151, O.161, ETSI ETS 300 166, JTG.703, JTI.431, TBR12, TBR13, and CTR4.

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