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| (R) MT9042B Multitrunk System Synchronizer Preliminary Information Features * Meets jitter requirements for AT&T TR62411 Stratum 3, 4 and Stratum 4 Enhanced for DS1 interfaces and for ETSI ETS 300 011 for E1 interfaces Provides C1.5, C3, C2, C4, C8 and C16 output clock signals Provides 8kHz ST-BUS framing signals Selectable 1.544MHz, 2.048MHz or 8kHz input reference signals Accepts reference inputs from two independent sources Provides bit error free reference switching meets phase slope and MTIE requirements Operates in either Normal, Holdover and Freerun modes ISSUE 1 October 1996 Ordering Information MT9042BP 28 Pin PLCC -40C to +85 C * * * * * * d de Description enign The MT9042B Synchronizer mmes 2C digital Multitrunk System (DPLL), which contains a phase-locked loop cow D provides timing E1 primary rate transmission links. and synchronization signals for 04 ee multitrunk T1 and 9 t Rr N MT The MT9042B generates ST-BUS clock and framing No fo ee signals that are phase locked to either a 2.048MHz, S 1.544MHz, or 8kHz input reference. The MT9042B is compliant with AT&T TR62411 Stratum 3, 4 and 4 Enhanced, and ETSI ETS 300 011. It will meet the jitter tolerance, jitter transfer, intrinsic jitter, frequency accuracy, holdover accuracy, capture range, phase slope and MTIE requirements for these specifications. Applications * * * Synchronization and timing control for multitrunk T1 and E1 systems ST-BUS clock and frame pulse sources Primary Trunk Rate Converters TRST Virtual Reference DPLL VDD VSS OSCi OSCo Master Clock TIE Corrector Circuit Output Interface Circuit State Select Input Impairment Monitor Feedback Guard Time Circuit Frequency Select MUX PRI SEC Reference Select MUX Reference Select Selected Reference TIE Corrector Enable C1.5o C3o C2o C4o C8o C16o F0o F8o F16o State Select RSEL LOS1 LOS2 Automatic/Manual Control State Machine MS1 MS2 RST GTo GTi FS1 FS2 Figure 1 - Functional Block Diagram 3-97 For more information about all Zarlink products visit our Web Site at www.zarlink.com Information relating to products and services furnished herein by Zarlink Semiconductor Inc. trading as Zarlink Semiconductor or its subsidiaries (collectively "Zarlink") is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and (unless agreed by Zarlink in writing) may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user's responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink's conditions of sale which are available on request. Purchase of Zarlink's I2C components conveys a licence under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2002, Zarlink Semiconductor Inc. All Rights Reserved. TECHNICAL DOCUMENTATION - NOT FOR RESALE |
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