ISDN Echocancellation Circuit
IEC-Q
PEB 2091
PEF 2091
Version 5.3
CMOS
1.1
Features
• ISDN
U
transceiver
with
IOM®-2
and
microprocessor interface control
• Pin and functionally compatible to all previous
PEB 2091 versions
• Perfectly suited to all LT, NT, TE, DAML, Repeater,
NT-PBX and Wireless Local Loop applications.
• U-interface (2B1Q) conforms to all relevant
international standardization norms (e.g. ITU, ANSI,
ETSI) and all important national norms (e.g. CNET,
P-LCC-44
BT),
including
all
optional
transmission
requirements with sufficient margin.
• Application optimized DSP with adaptive echo
cancellation and equalization, automatic polarity
adaption, clock recovery, automatic gain control and
build-in wake-up function.
• IOM®-2 interface for connection of e.g. EPIC®,
ELIC®, IDEC®, SBC-X, ICC, SICOFI®-2/4,
SICOFI®-2/4TE, ISAC®-S, ARCOFI®, ITAC®,
HSCX-TE, ISAR, IPAC, 3PAC
M-QFP-64
• Automatic maintenance control features
• Multipurpose controller interface in stand-alone
mode
• Single 5 Volt power supply
• Low power CMOS technology with power down
mode
• Available in three packages: P-LCC-44, M-QFP-64
and T-QFP-64
T-QFP-64
• Available in the extended temperature range
In µP Mode
• Parallel or serial microprocessor interface
• Wake up function in NT mode without IOM®-2
• Undervoltage detection circuit
• Watchdog
Semiconductor Group
19
Data Sheet 01.99
INFINEON [ Infineon ]
