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HC55171IB Datasheet

  • HC55171IB

  • 5 REN Ringing SLIC for ISDN Modem/TA and WLL

  • 18頁(yè)

  • INTERSIL   INTERSIL

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HC55171
Data Sheet
July 1998
File Number
4323.4
5 REN Ringing SLIC for
ISDN Modem/TA and WLL
The HC55171 is backward compatible to the HC5517 with
the added capability of driving 5 REN loads. The HC55171 is
ideal for any modem or remote networking access
application that requires plain old telephone service POTS,
capability. The linear ampli鏗乪r design allows a choice of
Sinusoidal, Square wave or Trapezoidal ringing. The voltage
feed architecture eliminates the need for a high current gain
node achieving improved system noise immunity, an
advantage in highly integrated systems.
The device is manufactured in a high voltage Dielectric
Isolation (DI) process with an operating voltage range from
-16V, for off-hook operation and -80V for ring signal injection.
The DI process provides substrate latch up immunity,
resulting in a robust system design.
Features
鈥?5 REN Thru SLIC Ringing Capability to 75V
PEAK
鈥?Trapezoid, Square and Sinusoid Ringing Capability
鈥?Bellcore Compliant Ringing Voltage Levels
鈥?Lowest Component Count Trapezoidal Solution
鈥?Single Additional +5V Supply
鈥?Pin For Pin Compatible With HC5517
鈥?DI Provides Latch-Up Immunity
Applications
鈥?ISDN Internal/External Modems
鈥?ISDN Terminal Adapters/Routers
鈥?Wireless Local Loop Subscriber Terminals
鈥?Cable Telephony Set-Top Boxes
鈥?Digital Added Main Line
Ordering Information
PART NUMBER
HC55171IM
HC55171CM
HC55171IB
HC55171CB
TEMP. RANGE
(
o
C)
-40 to 85
0 to 75
-40 to 85
0 to 75
PACKAGE
28 Ld PLCC
28 Ld PLCC
28 Ld SOIC
28 Ld SOIC
PKG.
NO.
N28.45
N28.45
M28.3
M28.3
鈥?Integrated LAN/PBX
鈥?Related Literature
- AN9606, Operation of the HC5517/171 Evaluation
Board
- AN9607, Impedance Matching Design Equations
- AN9628, AC Voltage Gain
- AN9608, Implementing Pulse Metering
- AN9636, Implementing an Analog Port for ISDN Using
the HC5517
- AN549, The HC-5502X/4X Telephone Subscriber Line
Interface Circuits (SLIC)
Block Diagram
TIP FEED
TIP SENSE
2-WIRE
INTERFACE
4-WIRE
INTERFACE
V
RX
V
TX
V
RING
-
+
- IN 1
OUT 1
RING FEED
RING SENSE 1
RING SENSE 2
V
REF
RTI
V
BAT
V
CC
LOOP CURRENT
DETECTOR
FAULT
DETECTOR
CURRENT
LIMIT
RING TRIP
DETECTOR
SHD
ALM
I
LMT
RTD
RELAY
DRIVER
RDI
RDO
BIAS
AGND
BGND
F1
F0
RS
TST
IIL LOGIC INTERFACE
62
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright 漏 Intersil Corporation 1999

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