The SAM Chipset with world-
class Echo cancellation and voice
processing technology and the
analog front end PSB 4851
provide a flexible and modular
approach for the design of digi-
tal answering machines with
state-of-the-art features.
Future versions with Voice-
recognition SAM
Product Brief
SAM PSB 2168
PSB 4860
Siemens Answering Machine
with Analog Front End PSB 4851
Potential Applications
Standalone digital answering
machines
Analog feature phones
Cordless/DECT phone base
station
Small office/Home office
(SoHo) FAX/TAM machines
ISDN Terminals
Features
Selectable (3.3, 5.4 and
10.3 kbit/s) compression rates
(provides 20 min of storage
with 4 Mbit of memory)
Recompression of stored mes-
sages to free up memory space
Support of emergency power
operation in conjunction with
PSB 4851 Analog Front End
Flexible memory interface sup-
ports DRAM, ARAM, Flash
Unique modular concept
through building blocks
IOM-2 Interface provides
access to industry-renowned
portfolio of Telecom-ICs
Detection and generation of
DTMF; Call progress, calling
number signals
Real time clock with extremely
low power, tailcut, AGC
Support for DECT Base Stations
PSB 2168 downward compa-
tible with PSB 4860
Interface to Analog Front End
PSB 4851+ Acoustic Echo Can-
cellation integrated in PSB 4860
Features of Analog Front End
PSB 4851
Supports low power emergen-
cy operation
Dual-channel codec
Direct connection of handset,
µ-phone, loudspeaker
Serial control interface for pro-
gramming
1102980013 Product Brief 18.03.1998 14:08 Uhr Seite 1
Published by Semiconductor Group
Siemens Aktiengesellschaft Ordering No. B118-H7196-X-X-7600
Printed in Germany
PS 02982. 1102980013
Block Diagram
PSB 4851
(analog front end)
Suite of SAM Evalution-Boards
SAM-Board
tip/ring
V.24 to PC
(optional)
mC-Board Display& Keypad
acoustic box (optional)
m-Controller
Serial Control Interface
AFE
Inter-
face
M
U
X
M
U
X
A
D
A
D
A
D
A
D
a/b
DTMF
Receiver
CPT
Detector
IOM-
Interface
AFE-
Interface
Hands-Free
Echo
cancellation
Coder/
Decoder
Realtime
Clock
CNG
Detector
DTMF
Generator
IOM-2
MemoryPSB 4851
SAM-AFE
PSB 4851
AFE
Interf.
SAM-EC
PSB 4860
DECT
Baseband
PMB 4725
DECT
RF
PMB 4420
PMB 4220
IOM-2 / SSDI Antenna
2/4 - wire
conversion
Flash
PMB 4925
Tip/
Ring A B C D
Application Example
No additional microcontroller required
Documentation
SAM Data Sheets
PSB 2168/4860/4851
SAM Flyer „ICs for Digital
Answering Machines“
Various app.notes
Development and Support Tools
SAM Reference package SIPB 4870 (Q67220-H4870)
SAM Board SIPB 4850 (Q67220-H1012)
SAM Reference Software SIPB 4830 (Q67220-H1055)
Date of issue/version
11/97
11/97
Type of material
Copy, PDF File
Color brochure
B118-H7094-X-X-7600
Analog Dect Base Station
PSB 2168, 4860
(digital part)
How to reach us:
http://www.siemens.de/Semiconductor/
address/address/.htm
© Siemens AG 1998.
All Rights Reserved.
Please note that any information contained in this
publication may be subject to change. Siemens re-
serves the right to make changes to or to disconti-
nue any product or service identified in this publi-
cation without notice.
Please contact our regional offices to receive the
latest version of the relevant information to verify,
before placing orders, that the information being
relied upon is current.
Wien
S(1) 17 07-35611
Richmond (Melbourne)
Vic. 3121
S(03) 420 7111
Brussel/Bruxelles
S(2) 536 23 48
São Paulo-SP
S(011) 8 33-22 11
Mississauga, Ontario
L5T 1P2
S(416) 905-819-8000
Zürich
S(01) 495-3111
Düsseldorf
S(0211) 399-29 30
Laatzen (Hannover)
S(0511) 877-22 22
München
S(089) 92 21-40 86
Nürnberg
S(0911) 654-7699
Stuttgart
S(0711) 137-33 14
Ballerup
S44 77 44 77
Tres Cantos-Madrid
S(1) 514 8000
Saint-Denis CEDEX 2
S(1) 4922 31 00
Berkshire RG12 8FZ
S(0344) 39 60 00
Amaroussio/Athen
S(01) 6 86 4111
Hong Kong
S(852) 28 32 05 00
Milano
S(02) 6676-1
Bombay
S(022) 493 87 86
Dublin
S(01) 668 47 27
Tokyo
S(81) 3-53 88 85 25
Oslo
S(02) 63 30 00
Den Haag
S(70) 333 24 29
Amadora
S(01) 417 0011
Warszawa
S(022) 670-91-52
Taipei
S(02) 523 47 00
Korea
S(822) 527-77 40
Moskva
S(095) 237-6476,
-6911
Kista
S(08) 703 35 00
Espoo
S(0) 510 51
Singapore
S(65) 840 06 00
Findikli
S(01) 251 09 00
Cupertino
S(408) 777-45 00
Halfway House
S(11) 652 -20 00,
-2700
A
AUS
B
BR
CDN
CH
D
DK
E
F
GB
GR
HK
IND
IRL
J
N
NL
P
PL
RC
ROK
RUS
SF
S
SGP
TR
ZA
USA
I
1102980013 Product Brief 18.03.1998 14:08 Uhr Seite 2
