PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 19

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

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