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HC5526 Datasheet

  • HC5526

  • ITU CO/PABX SLIC with Low Power Standby

  • 179.90KB

  • 18頁(yè)

  • INTERSIL   INTERSIL

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HC5526
Data Sheet
October 1998
File Number 4151.6
ITU CO/PABX SLIC with Low Power
Standby
The HC5526 is a subscriber line interface circuit that is
compliant with CCITT standards. Enhancements include
immunity to circuit latch-up during hot plug and absence of
false signaling in the presence of longitudinal currents.
The HC5526 is fabricated in a High Voltage Dielectrically
Isolated (DI) Bipolar Process that eliminates leakage
currents and device latch-up problems normally associated
with Junction Isolated (JI) ICs. The elimination of the
leakage currents results in improved circuit performance for
wide temperature extremes. The latch free bene鏗乼 of the DI
process guarantees operation under adverse transient
conditions. This process feature makes the HC5526 ideally
suited for use in harsh outdoor environments.
Features
鈥?DI Monolithic High Voltage Process
鈥?Programmable Current Feed (20mA to 60mA)
鈥?Programmable Loop Current Detector Threshold and
Battery Feed Characteristics
鈥?Ground Key and Ring Trip Detection
鈥?Compatible with Ericsson鈥檚 PBL3764
鈥?Thermal Shutdown
鈥?On-Hook Transmission
鈥?Wide Battery Voltage Range (-24V to -58V)
鈥?Low Standby Power
鈥?Meets CCITT Transmission Requirements
鈥?-40
o
C to 85
o
C Ambient Temperature Range
PKG.
NO.
N28.45
E22.4
N28.45
E22.4
Ordering Information
PART NUMBER
HC5526CM
HC5526CP
HC5526IM
HC5526IP
TEMP.
RANGE (
o
C)
0 to 70
0 to 70
-40 to 85
-40 to 85
PACKAGE
28 Ld PLCC
22 Ld PDIP
28 Ld PLCC
22 Ld PDIP
Applications
鈥?On-Premises (ONS)
鈥?Key Systems
鈥?PBX
鈥?Related Literature
- AN9537, Operation of the HC5513/26 Evaluation Board
Block Diagram
RINGRLY
RING RELAY
DRIVER
4-WIRE
INTERFACE
VF SIGNAL
PATH
V
TX
RSN
DT
DR
RING TRIP
DETECTOR
TIP
RING
HPT
HPR
GROUND KEY
DETECTOR
V
BAT
V
CC
V
EE
AGND
BGND
BIAS
R
D
R
DC
RSG
DET
DIGITAL
MULTIPLEXER
2-WIRE
INTERFACE
LOOP CURRENT
DETECTOR
E0
E1
C1
C2
57
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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