DS3251+ The DS3251+ is a single-channel Line Interface Unit (LIU) from Analog Devices, designed for interfacing at the physical layer to DS3, E3, or STS-1 lines. It operates at 3.3V and features a 144-pin TECSBGA package.
Mfr Part #:

DS3251+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS3251+ is a single-channel Line Interface Unit (LIU) from Analog Devices, designed for interfacing at the physical layer to DS3, E3, or STS-1 lines. It operates at 3.3V and features a 144-pin TECSBGA package.
✓ Total Stock: 2,006 pcs

DS3251+ Available from 1 distributor

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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2,006 pcs
2006 pcs On Request 1 On Request On Request 24+ On Request On Request

DS3251+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS3251+ Description

Short technical summary and product information.

The Analog Devices DS3251+ is a single-channel Line Interface Unit (LIU) that performs essential functions for interfacing with DS3, E3, or STS-1 lines at the physical layer. This device offers independent receive and transmit paths, along with a built-in jitter attenuator and an on-chip clock adapter that generates all necessary line-rate clocks from a single input clock.

 

Key features include multiple control interface options such as 8-bit parallel, SPI, and hardware mode. The jitter attenuator can be placed in either the receive or transmit paths and supports provisionable buffer depths of 16, 32, 64, or 128 bits. The DS3251+ supports B3ZS/HDB3 encoding and decoding, local and remote loopbacks, and operates on a low power 3.3V supply with 5V tolerant I/O.

 

Designed for demanding applications, the DS3251+ is suitable for SONET/SDH and PDH multiplexers, digital cross-connects, access concentrators, ATM and Frame Relay equipment, routers, PBXs, DSLAMs, and CSU/DSUs. It comes in a compact 144-pin, 13mm x 13mm thermally enhanced CSBGA package, making it a drop-in replacement for older DS3151/52/53/54 LIUs. The operating temperature range is 0°C to 70°C.

DS3251+ Quick Information

Product Type: Line Interface Unit (LIU)
Canonical Name: DS3251+ Line Interface Unit (LIU)
Subcategory: Telecom

DS3251+ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS3251+ Features

  • Single-channel Line Interface Unit (LIU).
  • Supports DS3, E3, and STS-1 lines.
  • Built-in jitter attenuator with configurable buffer.
  • Multiple control interface options available.
  • Low-power 3.3V operation with 5V tolerant I/O.

DS3251+ Applications

  • Used in SONET/SDH multiplexers.
  • Suitable for PDH multiplexers.
  • Applied in digital cross-connect systems.
  • Ideal for access concentrators.
  • Found in CSU/DSU equipment.

DS3251+ FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the DS3251+?

The DS3251+ operates at 3.3V.

What is the operating temperature range of the DS3251+?

The operating temperature range for the DS3251+ is 0°C to 70°C.

What package type is the DS3251+ supplied in?

The DS3251+ is supplied in a 144-TECSBGA (13x13) package.

What is the function of the DS3251+?

The DS3251+ functions as a Line Interface Unit (LIU) for DS3, E3, or STS-1 lines.

Does the DS3251+ support jitter attenuation?

Yes, the DS3251+ has a built-in jitter attenuator with provisionable buffer depths of 16, 32, 64, or 128 bits.

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