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HC5503T Datasheet(PDF) 1 Page - Intersil Corporation

Part No. HC5503T
Description  Balanced PBX/Key System SLIC, Subscriber Line Interface Circuit
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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HC5503T Datasheet(HTML) 1 Page - Intersil Corporation

   
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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
HC5503T
Balanced PBX/Key System SLIC,
Subscriber Line Interface Circuit
The Intersil HC5503T is a low cost Subscriber Line Interface
Circuit (SLIC) that replaces the components of a discrete
Transformer Analog circuit design. The monolithic integrated
design provides improved performance and system reliability.
The HC5503T provides: Current limited DC feed to the
subscriber loop, maintains a flat frequency response over the
voice band and beyond, has self resetting thermal protection
that allows conversation to continue while the fault is
present, provides a TTL subscriber off hook indication even
in the presence of longitudinal currents, and limits system
power consumption on short loops.
The HC5503T provides balanced 2-wire transmission and
has excellent longitudinal balance, while providing on hook
transmission and longitudinal current rejection in both the
on-hook or off-hook conditions.
The SLIC needs only one +5V supply in addition to the main
battery supply for loop current and operates over a range of
battery voltages (-24V to -58V).
Available in 22PDIP AND 24SO packaging. The HC5503T is
ideally suited as a replacement for discrete line circuits in
low cost analog PABXs, small Office/Home Office products
or Small Key Systems.
Features
• Monolithic Integrated Device
• Controlled Supply of Battery Feed Current for Short Loops
(30mA)
• Single +5V Supply
• Allows Interfacing With All Ringing Systems
• Switch Hook Detection
• Compatible With Worldwide PBX Performance
Requirements
• Low Power Consumption During Standby
Applications
• PBX Switches (Analog, Digital or ISDN)
• Key Telephone Systems (KTS)
• ISDN PC Plug in Modems
• ISDN Small Office / Home Office (SOHO) Terminal
Adapters (TA)
• CTI (Computer Telephony Integration) Products
Block Diagram
Ordering Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG. NO.
HC5503TCP
0 to 75
22 Ld PDIP
E22.4
HC5503TCB
0 to 75
24 Ld SOIC
M24.3
LOOP FEED
SPEECH CIRCUIT
LOOP DETECTOR
BIAS
VCC
AGND
DGND
VBAT
RF
TF
BGND
TIP
RING
C1
TX
RX
SHD
RS
Data Sheet
June 1998
File Number
4506


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