HC5523 Datasheet, PDF (1/18 Pages) Intersil Corporation – LSSGR/TR57 CO/Loop Carrier SLIC with Low Power Standby

Data Sheet
HC5523
October 1998
File Number 4144.5
LSSGR/TR57 CO/Loop Carrier SLIC with
Low Power Standby
The HC5523 is a subscriber line interface circuit which is
interchangeable with Ericsson’s PBL3764A/4 for distributed
central office applications. Enhancements include immunity
to circuit latch-up during hot plug and absence of false
signaling in the presence of longitudinal currents.
The HC5523 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 ICs. The elimination of the leakage
currents results in improved circuit performance for wide
temperature extremes. The latch free benefit of the DI
process guarantees operation under adverse transient
conditions. This process feature makes the HC5523 ideally
suited for use in harsh outdoor environments.
Ordering Information
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
HC5523IM
-40 to 85 28 Ld PLCC
HC5523IP
-40 to 85 22 Ld PDIP
PKG.
NO.
N28.45
E22.4
Block Diagram
Features
• DI Monolithic High Voltage Process
• Programmable Current Feed (20mA to 60mA)
• Programmable Loop Current Detector Threshold and
Battery Feed Characteristics
• Ground Key and Ring Trip Detection
• Compatible with Ericsson’s PBL3764A/4
• Thermal Shutdown
• On-Hook Transmission
• Wide Battery Voltage Range (-24V to -58V)
• Low Standby Power
• Meets TR-NWT-000057 Transmission Requirements
• -40^oC to 85^oC Ambient Temperature Range
Applications
• Digital Loop Carrier Systems • Pair Gain
• Fiber-In-The-Loop ONUs
• POTS
• Wireless Local Loop
• PABX
• Hybrid Fiber Coax
• Related Literature
- AN9632, Operation of the HC5523/15 Evaluation Board
RINGRLY
DT
DR
TIP
RING
HPT
HPR
RING RELAY
DRIVER
RING TRIP
DETECTOR
2-WIRE
INTERFACE
V_BAT
V_CC
V_EE
AGND
BGND
BIAS
LOOP CURRENT
DETECTOR
GROUND KEY
DETECTOR
4-WIRE
INTERFACE
VF SIGNAL
PATH
DIGITAL
MULTIPLEXER
V_TX
RSN
E0
E1
C1
C2
DET
R_D
R_DC
RSG
56
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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