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ICs for Communications
Two Channel Codec Filter for Terminal Applications
SICOFI®2-TE
PSB 2132 Version 1.2
Four Channel Codec Filter for Terminal Applications
SICOFI®4-TE
PSB 2134 Version 1.2
Data Sheet 09.97
DS 1

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PSB 2132
Revision History:
Previous Version:
Page
Page
(in previous (in current
Version) Version)
Current Version: 09.97
Preliminary Data Sheet 02.97
Subjects (major changes since last revision)
Feature list updated
IOM®, IOM®-1, IOM®-2, SICOFI®, SICOFI®-2, SICOFI®-4, SICOFI®-4µC, SLICOFI®, ARCOFI® , ARCOFI®-BA,
ARCOFI®-SP, EPIC®-1, EPIC®-S, ELIC®, IPAT®-2, ITAC®, ISAC®-S, ISAC®-S TE, ISAC®-P, ISAC®-P TE, IDEC®,
SICAT®, OCTAT®-P, QUAT®-S are registered trademarks of Siemens AG.
MUSAC-A, FALC54, IWE, SARE, UTPT, ASM, ASPare trademarks of Siemens AG.
Edition 09.97
This edition was realized using the software system FrameMaker®.
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.
For questions on technology, delivery and prices please contact the Semiconductor Group Offices in Germany or the Siemens Companies
and Representatives worldwide (see address list).
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 in-
curred.
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 hu-
man life. If they fail, it is reasonable to assume that the health of the user may be endangered.

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PSB 2132
PSB 2134
Table of Contents
Page
1
1.1
1.2
1.3
2
2.1
2.2
2.3
2.4
2.5
2.6
3
3.1
3.2
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.4
3.5
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5
3.5.6
3.5.7
3.5.8
3.5.9
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
4
4.1
4.2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Pin Definition and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
System Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
SICOFI®2/4-TE Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
The IOM-2 PCM-interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
The µ-Controller Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
The Signaling Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Ring Generator and Special Purpose Pin . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Programming the SICOFI®-2/4-TE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Types of Command and Data Bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Examples for SICOFI®2/4-TE Commands . . . . . . . . . . . . . . . . . . . . . . . . . . .26
SOP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
CR0 Configuration Register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
CR1 Configuration Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
CR2 Configuration Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
CR3 Configuration Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
CR4 Configuration Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
CR5 Configuration Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
COP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
XOP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
XR0 Extended Register 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
XR1 Extended Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
XR2 Extended Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
XR3 Extended Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
XR4 Extended Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
XR5 Extended Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
XR6 Extended Register 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
XR7 Extended Register 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Setting of Slopes in Register XR6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
RESET (Basic Setting Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Active Mode (Power Up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Programmable Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
QSICOS Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Transmission Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Group Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Semiconductor Group
3
09.97