PSB4860HV4.1 ,SAM-EC (Sophisticated Answering Machi...characteristics.Terms of delivery and rights to change design reserved.Due to technical requirement ..
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PSB7115FV2.1 ,ISAR 34 (Enhanced ISDN Data Access Co...characteristics.Terms of delivery and rights to change design reserved.For questions on technology, ..
PSB7238FV2.1 ,Joint Audio Decoder Encodercharacteristics.Terms of delivery and rights to change design reserved.Due to technical requirement ..
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PSB4860HV4.1
SAM-EC (Sophisticated Answering Machi...
ICs for Communications
Sophisticated Answering Machine with Echo Cancellation
SAM-EC
PSB 4860 Version 4.1
Data Sheet2000-01-14
DS 1
For questions on technology, delivery and prices please contact the Infineon Technologies Offices
in Germany or the Infineon Technologies Companies and Representatives worldwide:
see our webpage at http://www.infineon.com
Edition 2000-01-14
Published by Infineon Technologies AG,
TR,
Balanstraße 73,
81541 München© InfineonTechnologiesAG 2000.
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 InfineonTechnologies Office.
InfineonTechnologiesAG is an approved CECC manufacturer.
PackingPlease 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 InfineonTechnologiesAG, may only be used in life-support devices or systems2 with
the express written approval of the InfineonTechnologiesAG.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.Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or
1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111.1Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
1.2Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
1.3Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
1.4Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
1.5Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
1.6System Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
1.6.1Analog Featurephone with Digital Answering Machine . . . . . . . . . . . . . . .20
1.6.2Featurephone with Digital Answering Machine for ISDN Terminal . . . . . .22
1.6.3DECT Basestation with Integrated Digital Answering Machine . . . . . . . . .23
1.7Backward Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .252.1Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.1.1Full Duplex Speakerphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.1.2Echo Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
2.1.3Echo Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
2.1.4Line Echo Canceller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
2.1.5DTMF Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
2.1.6CNG Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
2.1.7Alert Tone Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
2.1.8Universal Tone Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
2.1.9CPT Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
2.1.10Caller ID Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
2.1.11Caller ID Sender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
2.1.12DTMF Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
2.1.13Speech Coder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
2.1.14Speech Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
2.1.15Analog Front End Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
2.1.16Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
2.1.17Universal Attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
2.1.18Automatic Gain Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
2.1.19Equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
2.1.20Peak Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
2.2Memory Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
2.2.1File Definition and Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
2.2.2User Data Word . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
2.2.3High Level Memory Management Commands . . . . . . . . . . . . . . . . . . . . .83
2.2.4Low Level Memory Management Commands . . . . . . . . . . . . . . . . . . . . . .95
2.2.5Execution Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
2.2.6Special Notes on File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
2.3Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
2.3.1Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
2.3.2SPS Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
2.3.3Reset and Power Down Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
2.3.4Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
2.3.5Abort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
2.3.6Revision Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
2.3.7Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
2.3.8Frame Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
2.3.9Clock Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
2.3.10AFE Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
2.3.11Restrictions and Mutual Dependencies of Modules . . . . . . . . . . . . . . . .106
2.3.12Emergency Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
2.4Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
2.4.1IOM®-2 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
2.4.2SSDI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
2.4.3Analog Front End Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
2.4.4Serial Control Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
2.4.5Memory Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
2.4.6Auxiliary Parallel Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
Detailed Register Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
3.1Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
3.2Hardware Configuration Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
3.3Read/Write Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
3.3.1Register Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
3.3.2Register Naming Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299
4.1Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299
4.2DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299
4.3AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .321
Figure 1:Pin Configuration of PSB 4860. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 2:Logic Symbol of PSB 4860. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3:Block Diagram of PSB 4860. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 4:Analog Full Duplex Speakerphone with Digital Answering Machine . . . . 20
Figure 5:Stand-Alone Answering Machine with Data Access via SCI . . . . . . . . . . 21
Figure 6:Featurephone with Answering Machine for ISDN Terminal . . . . . . . . . . . 22
Figure 7:DECT Basestation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 8:Functional Units - Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 9:Functional Units - Recording a Phone Conversation . . . . . . . . . . . . . . . . 27
Figure 10:Functional Units - Simultaneous Internal and External Call. . . . . . . . . . . 28
Figure 11:Speakerphone - Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 12:Speakerphone - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 13:Echo Cancellation Unit - Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 14:Echo Cancellation Unit - Typical Room Impulse Response. . . . . . . . . . . 31
Figure 15:Echo Suppression Unit - States of Operation. . . . . . . . . . . . . . . . . . . . . . 32
Figure 16:Echo Suppression Unit - Signal Flow Graph . . . . . . . . . . . . . . . . . . . . . . 33
Figure 17:Speech Detector - Signal Flow Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 18:Speech Comparator - Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 19:Speech Comparator - Acoustic Echoes . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 20:Speech Comparator - Interdependence of Parameters . . . . . . . . . . . . . . 39
Figure 21:Echo Suppression Unit - Automatic Gain Control. . . . . . . . . . . . . . . . . . . 42
Figure 22:Line Echo Cancellation Unit - Block Diagram. . . . . . . . . . . . . . . . . . . . . . 45
Figure 23:Line Echo Cancellation Unit - Superior Mode with Shadow FIR . . . . . . . 46
Figure 24:DTMF Detector - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 25:CNG Detector - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 26:Alert Tone Detector - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 27:Universal Tone Detector - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . 51
Figure 28:CPT Detector - Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 29:CPT Detector - Cooked Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 30:Caller ID Decoder - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 31:Caller ID Sender - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Figure 32:DTMF Generator - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Figure 33:Speech Coder - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Figure 34:VOX Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Figure 35:Speech Decoder - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 36:Analog Front End Interface - Block Diagram . . . . . . . . . . . . . . . . . . . . . . 69
Figure 37:Digital Interface - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Figure 38:Universal Attenuator - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Figure 39:Automatic Gain Control Unit - Block Diagram . . . . . . . . . . . . . . . . . . . . . 73
Figure 40:Equalizer - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 41:Peak Detector - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Figure 42:Memory Management - Data Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 43:Memory Management - Structure of Message Directory . . . . . . . . . . . . . 79
