MC145422DW Motorola, MC145422DW Datasheet

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MC145422DW

Manufacturer Part Number
MC145422DW
Description
SOP24
Manufacturer
Motorola
Datasheet
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Universal Digital-Loop
Transceivers (UDLT)
that provide 80 kbps full–duplex data communication over 26 AWG and larger
twisted–pair cable up to two kilometers in distance. Intended primarily for use in
digital subscriber voice/data telephone systems, these devices can also be
used in remote data acquisition and control systems. These devices utilize a
256 kilobaud modified differential phase shift keying burst modulation technique
for transmission to minimize RFI/ EMI and crosstalk. Simultaneous power
distribution and duplex data communication can be obtained using a single
twisted–pair wire.
evolving, telephone switching hardware and software architectures.
telephone switch linecard and the MC145426 Slave UDLT for use at the remote
digital telset and/or data terminal.
reliable low–power operation and proven capability for complex analog/digital
LSI functions.
MC145422 Master UDLT
MC145426 Slave UDLT
REV 2
9/95
MOTOROLA
The MC145422 and MC145426 UDLTs are high–speed data transceivers
These devices are designed for compatibility with existing, as well as
The UDLT chip–set consists of the MC145422 Master UDLT for use at the
The devices employ CMOS technology in order to take advantage of their
Motorola, Inc. 1995
Provides Full–Duplex Synchronous 64 kpbs Voice/Data Channel and Two
8 kbps Signaling Data Channels Over One 26 AWG Wire Pair Up to Two
Kilometers
Compatible with Existing and Evolving Telephone Switch Architectures and
Call Signaling Schemes
Automatic Detection Threshold Adjustment for Optimum Performance Over
Varying Signal Attenuations
Protocol Independent
Single 5 V Power Supply
22–Pin PDIP, 24–Pin SOG Packages
Application Notes AN943, AN949, AN968, AN946, and AN948
Pin Controlled Power–Down and Loopback Features
Signaling and Control I/O Capable of Sharing Common Bus Wiring with
Other UDLTs
Variable Data Clock — 64 kHz to 2.56 MHz
Pin Controlled Insertion/Extraction of 8 kbps Channel into LSB of 64 kbps
Channel for Simultaneous Routing of Voice and Data Through PCM Voice
Path of Telephone Switch
Compatible with MC145500 Series PCM Codec–Filters
Pin Controlled Loopback Feature
Automatic Power–Up/Power–Down Feature
On–Chip Data Clock Recovery and Generation
Pin Controlled 500 Hz D3 or CCITT Format PCM Tone Generator for
Audible Feedback Applications
22
24
ORDERING INFORMATION
MC145422DW SOG Package
MC145426DW SOG Package
MC145422P
MC145426P
MC145422
MC145426
1
1
MC145422 MC145426
Order this document
Plastic DIP
Plastic DIP
SOG PACKAGE
PLASTIC DIP
DW SUFFIX
CASE 751E
CASE 708
P SUFFIX
by MC145422/D
1

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