psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 11

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

1
The SCOUT-P or SCOUT-PX respectively integrates all necessary functions for the
completion of a cost effective digital voice terminal solution.
Please note: Throughout the whole document “SCOUT
The SCOUT combines the functionality of the ARCOFI
Codec Filter Basic Function) or ARCOFI
Speakerphone) respectively and the SmartLink-P PSB 2197 (Subscriber Access
Controller for U
Controller for U
The SCOUT-P is suited for the use in basic PBX voice terminals just as it is, and in
combination with an additional device on the modular IOM
featurephones e.g. with acoustic echo cancellation.
The SCOUT-PX PSB 21393 is an extended SCOUT-P PSB 21391 which provides the
speakerphone performance of the ARCOFI-SP PSB 2163.
The transceiver implements the subscriber access functions for a digital terminal to be
connected to a two wire U
functions for digital terminals.
The codec performs encoding, decoding, filtering functions and tone generation (ringing,
audible feedback tones and DTMF signal). An analog front end offers three analog inputs
and two analog outputs with programmable amplifiers.
The IOM-2 interface allows a modular design with functional extensions (e.g. acoustic
echo cancellation, tip/ring extension, S/T-interface option, terminal repeater) by
connecting other voice/data devices to the SCOUT.
A serial microcontroller interface (SCI) is supported. A clock signal and a reset input and
output pin complete the microcontroller interface.
The SCOUT is a CMOS device offered in a P-MQFP-44 package and operates with a
3.3V or 5V supply.
Data Sheet
Overview
and “SCOUT
PN
PN
Terminals in TE mode) respectively on a single chip.
Terminals) or ISAC
PN
™
-PX“
interface. It covers complete layer-1 and basic layer-2
®
®
-SP PSB 2163 (Audio Ringing Codec Filter with
-P TE PSB 2196 (ISDN Subscriber Access
1
®
-BA PSB 2161 (Audio Ringing
™
®
“refers to “SCOUT
-2 interface, in high end
PSB 21391
PSB 21393
2001-03-07
Overview
™
-P“