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HC5521CQ PDF даташит

Спецификация HC5521CQ изготовлена ​​​​«Intersil Corporation» и имеет функцию, называемую «SLIC Subscriber Line Interface Circuit».

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Номер произв HC5521CQ
Описание SLIC Subscriber Line Interface Circuit
Производители Intersil Corporation
логотип Intersil Corporation логотип 

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HC5521CQ Даташит, Описание, Даташиты
SEMICONDUCTOR
HC5521
ADVANCE INFORMATION
January 1997
SLIC
Subscriber Line Interface Circuit
Features
Description
• Normal and Reversed DC Feed
• 30mA Current Limit
• Ringing, Test-In, and Test-Out Relay Drivers
• Ground Key Detector with Seperate Logic Output
• Thermal Shutdown Protection with Alert Signal
• On-Hook Transmission
• Selectable Transmit and Receive Gain Setting
• Selectable 2-Wire Impedance Matching
• Zero Crossing Ring Trip Detection and Ring Relay
Release
• Parallel Digital Control and Status Monitoring
• Protection Resistors inside Feedback Loop allows the
use of PTC Devices without Impact on Longitudinal
Balance
Applications
• PABX/CO Line Circuits
The HC5521 is a Monolithic Subscriber Line Interface Circuit
(SLIC) for Analog Subscriber Line cards in Central Office
and PABX switches.
The HC5521 provides a comprehensive set of features for
these applications including loop reversal, ground key detec-
tion, zero crossing ring relay operation, long loop drive and a
mutually independent setting of the receive and transmit
gains, and the two-wire impedance synthesis. An option is
also provided for eliminating transhybrid balance on-chip.
Advanced power management features combined with a
small 44 lead MQFP package allow significant board space
to be freed up for additional line circuits.
The HC5521 is fabricated in a Harris state of the art Bonded
Wafer High Voltage process, providing freedom from tradi-
tional JI latch-up phenomena without the use of additional
power supply filtering components or substrate tie connec-
tions. The very low parasitics and leakages associated with
this process provide an exceptionally flat performance over
frequency and temperature.
Ordering Information
PART NUMBER
HC5521CQ
HC5521CM
TEMP.
RANGE (oC) PACKAGE
0 to 70 44 Ld MQFP
0 to 70 44 Ld PLCC
PKG. NO.
Q44.10x10
N44.65
Block Diagram
TA
TB
GKDO
SHDO
D2PRI
D3PDI
D4RCI
D5TBI
D6TAI
AGND
BGND
RGND
VBAT
VCC
VEE
TEST CONTROL
LOGIC
BIAS
BATTERY
REFERENCE
RX TX TX4W RN KZO
4-WIRE INTERFACE / Z0
2-WIRE
INTERFACE
RING
CONTROL
POWER
MANAGEMENT
TIP
TIPSEN
RINGSEN
RING
RD
RBH
RBL
CRTD
RPSB
RPSR
RPST
RPSG
CP RDC CDC
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
4-35
File Number 4265










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Номер в каталогеОписаниеПроизводители
HC5521CMSLIC Subscriber Line Interface CircuitIntersil Corporation
Intersil Corporation
HC5521CQSLIC Subscriber Line Interface CircuitIntersil Corporation
Intersil Corporation

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