DS21Q41BTN

更新时间： 2024-10-27 22:10:55

品牌	Logo	应用领域
达拉斯 - DALLAS		电信集成电路
页数	文件大小	规格书
61页	713K
描述
Quad T1 Framer

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中文翻译

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数据手册

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DS21Q41BTN 数据手册

DS21Q41B

Quad T1 Framer

www.dalsemi.com

FEATURES

FUNCTIONAL DIAGRAM

§ Four T1 DS1/ISDN-PRI framing transceivers

§ All four framers are fully independent

§ Frames to D4, ESF, and SLC-96 formats

§ 8-bit parallel control port that can be

connected to either multiplexed or non-

multiplexed buses

RECEIVE

FRAMER

ELASTIC

STORE

§ Each of the four framers contains dual two-

frame elastic stores that can connect to

asynchronous or synchronous backplanes up

to 8.192 MHz

§ Extracts and inserts robbed bit signaling

§ Framer and payload loopbacks

§ Large counters for BPVs, LCVs, EXZs,

CRC6, PCVs, F-bit errors and the number of

multiframes out of sync

TRANSMIT

FORMATTER

ELASTIC

STORE

FRAMER #0

FRAMER #1

FRAMER #2

FRAMER #3

CONTROL PORT

§ Contains ANSI 1s density monitor and

enforcer

§ CSU loop code generator and detector

§ Programmable output clocks for Fractional

T1, ISDN-PRI, Actual Size and per channel

loopback applications

§ Onboard FDL support circuitry

§ Pin-compatible with DS21Q43 Quad E1

Framer

ACTUAL SIZE

QUAD

FRAMER

§ 5V supply; low power CMOS

§ Available in 128-pin TQFP

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

available (DS21Q41BTN)

DESCRIPTION

The DS21Q41B combines four of the popular DS2141A T1 Controllers onto a single monolithic die. The

“B” designation denotes that some new features are available in the Quad version that were not available

in the single T1 device. The added features in the DS21Q41B are listed in Section 1. The DS21Q41B

offers a substantial space savings to applications that require more than one T1 framer on a card. The

Quad version is only slightly bigger than the single T1 device. All four framers in the DS21Q41B are

totally independent; they do not share a common framing synchronizer. Also, the transmit and receive

sides of each framer are totally independent. The dual two-frame elastic stores contained in each of the

four framers can be independently enabled and disabled as required. The DS21Q41B meets all of the

latest specifications including ANSI T1.403 (and the emerging T1.403-199X), ANSI T1.231-1993,

AT&T TR62411, AT&T TR54016, ITU G.704 and G.706.

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与DS21Q41BTN相关器件

型号	品牌	获取价格	描述	数据表
DS21Q42	DALLAS	获取价格	Enhanced QUAD T1 FRAMER
DS21Q42T	DALLAS	获取价格	Enhanced QUAD T1 FRAMER
DS21Q42TN	DALLAS	获取价格	Enhanced QUAD T1 FRAMER
DS21Q43A	DALLAS	获取价格	Quad E1 Framer
DS21Q43A	MAXIM	获取价格	Framer, CMOS, PQFP128,
DS21Q43AT	DALLAS	获取价格	Quad E1 Framer
DS21Q43ATN	DALLAS	获取价格	Quad E1 Framer
DS21Q44	DALLAS	获取价格	Enhanced QUAD E1 FRAMER
DS21Q44T	DALLAS	获取价格	Enhanced QUAD E1 FRAMER
DS21Q44T	MAXIM	获取价格	Framer, CMOS, PQFP128, TQFP-128