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PSB2168 Dataheets PDF



Part Number PSB2168
Manufacturers Siemens Semiconductor Group
Logo Siemens Semiconductor Group
Description Digital Answering Machine SAM
Datasheet PSB2168 DatasheetPSB2168 Datasheet (PDF)

ICs for Communications Digital Answering Machine SAM PSB 2168 Version 2.1 Data Sheet 11.97 DS 1 PSB 2168 Revision History: Previous Version: Page Page (in previous (in new Version) Version) Current Version: 11.97 Preliminary Data Sheet 09.97 Subjects (major changes since last revision) Index added For questions on technology, delivery and prices please contact the Semiconductor Group Offices in Germany or the Siemens Companies and Representatives worldwide: see our webpage at http://www.sie.

  PSB2168   PSB2168


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ICs for Communications Digital Answering Machine SAM PSB 2168 Version 2.1 Data Sheet 11.97 DS 1 PSB 2168 Revision History: Previous Version: Page Page (in previous (in new Version) Version) Current Version: 11.97 Preliminary Data Sheet 09.97 Subjects (major changes since last revision) Index added For questions on technology, delivery and prices please contact the Semiconductor Group Offices in Germany or the Siemens Companies and Representatives worldwide: see our webpage at http://www.siemens.de/Semiconductor/address/address.htm. Edition 11.97 Published by Siemens AG, HL TS, Balanstraße 73, 81541 München © Siemens AG 1997. All Rights Reserved. Attention please! As far as patents or other rights of third parties are concerned, liability is only assumed for components, not for applications, processes and circuits implemented within components or assemblies. The information describes the type of component and shall not be considered as assured characteristics. Terms of delivery and rights to change design reserved. Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Siemens Office, Semiconductor Group. Siemens AG is an approved CECC manufacturer. Packing Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office. By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs incurred. Components used in life-support devices or systems must be expressly authorized for such purpose! Critical components1 of the Semiconductor Group of Siemens AG, may only be used in life-support devices or systems2 with the express written approval of the Semiconductor Group of Siemens AG. 1 A critical component is a component used in a life-support device or system whose failure can reasonably be expected to cause the failure of that life-support device or system, or to affect its safety or effectiveness of that device or system. 2 Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain and sustain human life. If they fail, it is reasonable to assume that the health of the user may be endangered. PSB 2168 1 1.1 1.2 1.3 1.4 1.5 1.6 1.6.1 2 2.1 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.1.6 2.1.7 2.1.8 2.1.9 2.1.10 2.1.11 2.1.12 2.1.13 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.3.7 2.3.8 2.3.9 2.4 2.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 System Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Stand-Alone Answering Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Line Echo Canceller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 DTMF Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 CNG Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Alert Tone Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 CPT Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Caller ID Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 DTMF Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Speech Coder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Speech Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Universal Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 Automatic Gain Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Equalizer . . . . . . . . . . . . . . . .


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