DS2151 Dallas Semiconducotr, DS2151 Datasheet

DS2151

Manufacturer Part Number

DS2151

Description

T1 Single-Chip Transceiver

Manufacturer

Dallas Semiconducotr

Datasheet

1.DS2151.pdf (51 pages)

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Current page: 1 of 51
Download datasheet (2Mb)

FEATURES

§ Complete DS1/ISDN-PRI transceiver

§ Line interface can handle both long- and

§ 32-bit or 128-bit jitter attenuator

§ Generates DSX-1 and CSU line build outs

§ Frames to D4, ESF, and SLC-96

§ Dual onboard two-frame elastic store slip

§ 8-bit parallel control port that can be used on

§ Extracts and inserts Robbed-Bit signaling

§ Detects and generates yellow and blue alarms

§ Programmable output clocks for Fractional T1

§ Fully independent transmit and receive

§ Onboard FDL support circuitry

§ Generates and detects CSU loop codes

§ Contains ANSI one’s density monitor and

§ Large path and line error counters including

§ Pin compatible with DS2153Q E1 Single-

§ 5V supply; low power CMOS

§ Industrial grade version (-40 C to +85 C)

DESCRIPTION

The DS2151Q T1 Single-Chip Transceiver (SCT) contains all of the necessary functions for connection

to T1 lines whether they be DS-1 long haul or DSX-1 short haul.

automatically adjusts to T1 lines from 0 feet to over 6000 feet in length. The device can generate both

DSX-1 line build outs as well as CSU build outs of -7.5 dB, -15 dB, and -22.5 dB. The onboard jitter

attenuator (selectable to either 32 bits or 128 bits) can be placed in either the transmit or receive data

paths. The framer locates the frame and multiframe boundaries and monitors the data stream for alarms.

It is also used for extracting and inserting Robbed-Bit signaling data and FDL data. The device contains

a set of 64 8-bit internal registers which the user can access to control the operation of the unit. Quick

access via the parallel control port allows a single micro to handle many T1 lines. The device fully meets

all of the latest T1 specifications including ANSI T1.403-199X, AT&T TR 62411 (12-90), and ITU

G.703, G.704, G.706, G.823, and I.431.

www.dalsemi.com

functionality

short-haul trunks

buffers that connect to backplanes up to 8.192

MHz

either multiplexed or non-multiplexed buses

functionality

enforcer

BPV, CV, CRC6, and framing bit errors

Chip Transceiver

available (DS2151QN)

formats

1 of 51

T1 Single-Chip Transceiver

PIN ASSIGNMENT

RLOS/LOTC

RCHCLK

SYSCLK

RSYNC

DS2151Q

RLCLK

RLINK

T1SCT

DVSS

RSER

RCLK

Dallas

ALE

ACTUAL SIZE OF 44-PIN PLCC

FUNCTIONAL BLOCKS

PARALLEL CONTROL

The clock recovery circuitry

PORT

DS2151Q

TSER

TCLK

DVDD

TSYNC

TLINK

TLCLK

TCHBLK

TRING

TVDD

TVSS

TTIP

081099

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