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HC55171CB fiches techniques PDF

Intersil Corporation - 5 REN Ringing SLIC for ISDN Modem/TA and WLL

Numéro de référence HC55171CB
Description 5 REN Ringing SLIC for ISDN Modem/TA and WLL
Fabricant Intersil Corporation 
Logo Intersil Corporation 





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HC55171CB fiche technique
Data Sheet
HC55171
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 amplifier 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.
Ordering Information
TEMP. RANGE
PART NUMBER
(oC)
PACKAGE
HC55171IM
-40 to 85 28 Ld PLCC
HC55171CM
0 to 75
28 Ld PLCC
HC55171IB
-40 to 85 28 Ld SOIC
HC55171CB
0 to 75
28 Ld SOIC
PKG.
NO.
N28.45
N28.45
M28.3
M28.3
Features
• 5 REN Thru SLIC Ringing Capability to 75VPEAK
• Trapezoid, Square and Sinusoid Ringing Capability
• Bellcore Compliant Ringing Voltage Levels
• Lowest Component Count Trapezoidal Solution
• Single Additional +5V Supply
• Pin For Pin Compatible With HC5517
• DI Provides Latch-Up Immunity
Applications
• ISDN Internal/External Modems
• ISDN Terminal Adapters/Routers
• Wireless Local Loop Subscriber Terminals
• Cable Telephony Set-Top Boxes
• Digital Added Main Line
• Integrated LAN/PBX
• 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
RING FEED
RING SENSE 1
RING SENSE 2
VREF
RTI
VBAT
VCC
AGND
BGND
2-WIRE
INTERFACE
LOOP CURRENT
DETECTOR
FAULT
DETECTOR
BIAS
CURRENT
LIMIT
RING TRIP
DETECTOR
IIL LOGIC INTERFACE
F1 F0 RS TST
4-WIRE
INTERFACE
+-
RELAY
DRIVER
RDI
VRX
VTX
VRING
- IN 1
OUT 1
SHD
ALM
ILMT
RTD
RDO
62 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

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