Analog Devices Inc./Maxim Integrated DS3152N+

Overview

DS3152N+ from Maxim Integrated (now Analog Devices) is a dual-channel line interface unit (LIU) for DS3 (44.736 Mbps), E3 (34.368 Mbps), and STS-1 (51.840 Mbps) physical-layer interfacing. It integrates independent transmit/receive paths per channel, on-chip jitter attenuation, B3ZS/HDB3 encoding/decoding, and supports 75Ω coaxial cable up to 380m (DS3). It is deployed in SONET/SDH multiplexers and digital cross-connect systems requiring telecom-grade signal integrity.

For engineers reviewing the DS3152N+ datasheet, DS3152N+ pinout, DS3152N+ application, or DS3152N+ equivalent, key selection considerations include dual-port DS3/E3/STS-1 compliance, industrial temperature operation (–40°C to +85°C), hardware/CPU bus configuration modes, JTAG boundary scan support, and transformer-coupled 75Ω differential analog I/O with tri-state output control.

Technical Context

The DS3152N+ implements two fully independent LIU channels, each with adaptive equalization (0–15 dB loss compensation), clock/data recovery (CDR), and programmable jitter attenuator placement-either in receive path, transmit path, or disabled. Each channel supports binary or bipolar framer interfaces and includes on-board PRBS generator/detector (2¹⁵–1 and 2²³–1).

Transmit functionality includes DS3 AIS generation (ANSI T1.107), E3 unframed all-ones, line build-out (LBO) control, and gapped-clock operation up to 51.84 MHz with ±20% duty cycle tolerance. Receiver features include dual LOS detection (digital/analog per ANSI T1.231 and ITU G.775), loss-of-lock (LOL) indication, and optional preamp enable for DSX monitoring.

Key Specifications

Pinout & Package

DS3152N+ uses a 144-pin thermally enhanced chip-scale ball grid array (TE-CSBGA) package measuring 13 mm × 13 mm with 0.8 mm pitch. The package supports high-density PCB layout and efficient heat dissipation via exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-port DS3/E3/STS-1 line interface applications.

Compared with DS3152N+, DS3152+ lacks industrial temperature support, limiting deployment in outdoor or unconditioned telco environments, while MAX3152N+ offers identical performance with updated branding and ongoing supply assurance - making it the preferred choice for new designs requiring long-term availability.

Availability

DS3152N+ is available at Aetrix Electronics and suitable for SONET/SDH multiplexers, digital cross-connect systems, and DSLAM line cards requiring stable component supply across extended product lifecycles.

Supply support for DS3152N+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated, now part of Analog Devices, is a semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for communications, computing, and industrial markets.

The DS3152N+ belongs to the DS315x family of line interface units designed specifically for carrier-grade DS3/E3/STS-1 physical layer interfacing in telecom infrastructure equipment.

FAQ

What telecom standards does the DS3152N+ comply with?

The DS3152N+ complies with ANSI T1.102, T1.107, T1.231, ITU G.703, G.751, G.775, G.823, G.824, ETSI ETS 300 686/687/EN 300 689, and Telcordia GR-253-CORE. These cover DS3/E3/STS-1 electrical interface, AIS generation, LOS detection, jitter control, and SONET transport requirements - ensuring interoperability in global carrier networks.

Does the DS3152N+ support both hardware and microprocessor-based configuration?

Yes, the DS3152N+ supports two distinct configuration modes: hardware mode (via pull-up/pull-down resistors on dedicated pins) and CPU bus mode (8-bit parallel interface with address/data/control lines). The HW pin selects mode - high for hardware, low for CPU bus - and both modes provide full access to all channel functions including jitter attenuator routing and loopback control.

Can the DS3152N+ operate with different line coding schemes?

Yes, the DS3152N+ supports B3ZS encoding/decoding for DS3 and HDB3 for E3, configurable per channel via TBIN/RBIN and associated registers. It also handles unencoded AMI directly. Binary interface mode (TBIN=1/RBIN=1) passes decoded data to framer logic; bipolar mode (TBIN=0/RBIN=0) outputs native AMI pulses - enabling flexible framer integration.

What is the maximum cable length supported by the DS3152N+ for DS3 operation?

The DS3152N+ supports DS3 operation over 75Ω coaxial cable up to 380 meters, enabled by its adaptive equalizer block that compensates for 0–15 dB of cable loss. This meets ANSI T1.404 and ITU G.703 specifications for metallic DS3 interfaces and eliminates need for external repeaters in typical central office to remote terminal links.

Is JTAG boundary scan supported on the DS3152N+?

Yes, the DS3152N+ includes full IEEE 1149.1 JTAG test access port and boundary scan architecture. It supports instruction register loading, ID code readback, and scan-chain access to internal registers and I/O states - enabling automated PCB testing, in-system programming, and diagnostic visibility without physical probe access.