QuickView

Technical Documents

Ordering Info

More Information

User Comments (0)

All

Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 1.5MB) Download   E-Mail

Errata

Errata DS2156 2156A2.pdf

Description

The DS2156 is a software-selectable T1, E1, or J1 single-chip transceiver (SCT) for short-haul and long-haul applications. The backplane is user-configurable for a TDM or UTOPIA II bus interface. The DS2156 is composed of a line interface unit (LIU), framer, HDLC controllers, and a UTOPIA/TDM backplane interface, and is controlled by an 8-bit parallel port configured for Intel or Motorola bus operations. The DS2156 is pin and software compatible with the DS2155. The LIU is composed of transmit and receive interfaces and a jitter attenuator. The transmit interface is responsible for generating the necessary waveshapes for driving the network and providing the correct source impedance depending on the type of media used. T1 waveform generation includes DSX-1 line buildouts as well as CSU line buildouts of -7.5dB, -15dB, and -22.5dB. E1 waveform generation includes G.703 waveshapes for both 75Ω coax and 120Ω twisted cables. The receive interface provides network termination and recovers clock and data from the network.

An evaluation kit is available:  DS2155DK, DS2156DK  

Key Features		Applications/Uses
Complete T1/DS1/ISDN-PRI/J1 transceiver functionality Complete E1 (CEPT) PCM-30/ISDN-PRI transceiver functionality User-selectable TDM or UTOPIA II bus interface Long-haul and short-haul line interface for clock/data recovery and waveshaping CMI coder/decoder for optical I/F Crystal-less jitter attenuator Fully independent transmit and receive functionality Dual HDLC controllers Programmable BERT generator and detector Internal software-selectable receive and transmit-side termination resistors for 75Ω/100Ω/120Ω T1 and E1 interfaces Dual two-frame elastic-store slip buffers that connect to asynchronous backplanes up to 16.384MHz 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz clock output synthesized to recovered network clock Additional features listed in full data sheet		Add/Drop Multiplexers Inverse Mux ATM (IMA) Routers/Switches T1/E1/J1 Line Cards

Diagram

Block Diagram

Application Notes

Application Note 324: T1/E1 Network Interface Design - DS2156 Application Note 351: T1/E1 and T3/E3 Transformer Selection Guide - DS2156 Application Note 381: Interfacing the DS2155 to the MPC8260 - DS2156 Application Note 384: T1/E1/J1 Dual Connector Interface - DS2156 Application Note 389: DS2155 Internal BERT Programming - DS2156 Application Note 391: NRZ Applications - DS2156 Application Note 393: E1 Operation of Dallas Semiconductor Framers and SCTs - DS2156 Application Note 394: HDLC Configuration of Framers and Transceivers - DS2156 Application Note 405: Power-Fault Protection Layout - DS2156 Application Note 461: Programming and Controlling the FDL on DS2141A, DS2151 - DS2156 Application Note 2713: Switching Frame Mode In Live T1 Systems - DS2156 Application Note 2722: Interfacing the DS2156 Utopia II Bus to Dallas Demo Kits - DS2156 Application Note 2731: DS2155, DS21Q55, DS2156 Programming SLC-96 - DS2156, DS2156 Application Note 3121: Selecting a T1/E1/J1 Single-Chip Transceiver - DS2156 Application Note 3349: T1/E1 Loopback Operation for Dallas Semiconductor T1/E1/J1 transceivers - DS2156

Evaluation Kits

DS2155DK, DS2156DK

Design Guides

Communications (PDF)

Reliability Reports

Reliability Report: DS2156.pdf Request Reliability Report for: DS2156L DS2156LN

Software/Models

DS2156 IBIS Model DS2156LQFP BSDL Model DS2156CSBGA BSDL Model DS2156 Cadence Allegro Symbol DS2156 Cadence Concept Symbol DS2156 Logical Symbol-XML Format

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-6 of 6

DS2156	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2156G			Active	CSBGA;100 pin;100 mm² Outline Drawing: 21-0357 (PDF) Land Pattern: 90-0332 (PDF) Use pkgcode/variation: X100-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2156GN			Active	CSBGA;100 pin;100 mm² Outline Drawing: 21-0357 (PDF) Land Pattern: 90-0332 (PDF) Use pkgcode/variation: X100-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2156L	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2156L			Active	LQFP;100 pin;262.4 mm² Outline Drawing: 21-0297 (PDF) Land Pattern: 90-0295 (PDF) Use pkgcode/variation: C100L-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2156L+			Active	LQFP;100 pin;262.4 mm² Outline Drawing: 21-0297 (PDF) Land Pattern: 90-0295 (PDF) Use pkgcode/variation: C100L+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2156LN	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2156LN			Active	LQFP;100 pin;262.4 mm² Outline Drawing: 21-0297 (PDF) Land Pattern: 90-0295 (PDF) Use pkgcode/variation: C100L-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2156LN+			Active	LQFP;100 pin;262.4 mm² Outline Drawing: 21-0297 (PDF) Land Pattern: 90-0295 (PDF) Use pkgcode/variation: C100L+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes and Comments

The DS2156 connects directly to a UTOPIA II packetized backplane and performs the conversion between UTOPIA packet and TDM data streams. The backplane interface can be configured for UTOPIA II or TDM. The LIU and framer provide a true software-only configuration for connection to a T1, E1, or J1 line. The DS2156 conforms to all T1, E1, and J1 framing, synchronization, and transmission modes. It also supports all standard alarm generation and monitoring functions.

Related Products

DS21352, DS21552 3.3V DS21352 and 5V DS21552 T1 Single Chip Transceivers DS21354, DS21554 3.3V/5V E1 Single Chip Transceivers (SCT) More Like This: View Product Families for Similar Products See All T/E Carrier & Packetized Products (102 Products)

Didn't Find What You Need?

Next Day Product Selection Assistance from Applications Engineers Parametric Search Applications Help

QuickView

Technical Documents

Ordering Info

More Information

Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Errata   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits