hc5523 Intersil Corporation, hc5523 Datasheet

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hc5523

Manufacturer Part Number
hc5523
Description
Lssgr/tr57 Co/loop Carrier Slic With Low Power Standby
Manufacturer
Intersil Corporation
Datasheet

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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.
Part Number Information
Block Diagram
HC5523IM
HC5523IP
PART NUMBER
RANGE (
-40 to 85
-40 to 85
TEMP.
RINGRLY
®
o
BGND
AGND
C)
RING
V
1
HPR
HPT
V
V
BAT
TIP
DR
DT
CC
EE
28 Ld PLCC
22 Ld PDIP
Data Sheet
PACKAGE
BIAS
INTERFACE
RING RELAY
DETECTOR
RING TRIP
2-WIRE
DRIVER
N28.45
E22.4
DWG. #
PKG.
1-888-INTERSIL or 321-724-7143
LOOP CURRENT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
GROUND KEY
DETECTOR
DETECTOR
Features
• DI Monolithic High Voltage Process
• Programmable Current Feed (20mA to 60mA)
• Programmable Loop Current Detector Threshold and
• 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
Applications
• Digital Loop Carrier Systems
• Fiber-In-The-Loop ONUs
• Wireless Local Loop
• Hybrid Fiber Coax
• Related Literature
Battery Feed Characteristics
- AN9632, Operation of the HC5523/15 Evaluation Board
o
C to 85
INTERFACE
VF SIGNAL
All other trademarks mentioned are the property of their respective owners.
MULTIPLEXER
4-WIRE
PATH
August 2003
|
DIGITAL
Intersil (and design) is a registered trademark of Intersil Americas Inc.
o
C Ambient Temperature Range
Copyright © Intersil Americas Inc. 2003. All Rights Reserved.
V
RSN
E0
E1
C1
C2
DET
R
R
RSG
TX
DC
D
• Pair Gain
• POTS
• PABX
HC5523
FN4144.6

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hc5523 Summary of contents

Page 1

... Data Sheet 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. ...

Page 2

... R D number references in the figures refer to the 28 lead PLCC package. PARAMETER Overload Level Longitudinal Impedance (Tip/Ring) 2 HC5523 Thermal Information Thermal Resistance (Typical, Note 150 C 22 Lead PDIP Package . . . . . . . . . . . . . . . . . . . . . . ...

Page 3

... -5V 2.16µF A RING 368Ω 28 DET FIGURE 3A. OFF-HOOK OFF-HOOK LONGITUDINAL BALANCE Longitudinal to Metallic Longitudinal to Metallic Metallic to Longitudinal Longitudinal to 4-Wire Metallic to Longitudinal 4-Wire to Longitudinal 3 HC5523 +5V ±5 -5V ±5 0Ω 0Ω 10nF CONDITIONS 1V RMS 0 < ...

Page 4

... PLCC package. (Continued) PARAMETER R LT TIP 2.16µF RING FIGURE 4. LONGITUDINAL TO METALLIC AND LONGITUDINAL TO 4-WIRE BALANCE 2-Wire Return Loss C = 20nF HP 4 HC5523 +5V ±5 -5V ±5 0Ω 0Ω 10nF CONDITIONS 2.16µF R ...

Page 5

... INSERTION LOSS 2-Wire to 4-Wire 4-Wire to 2-Wire GAIN TRACKING (Ref = -10dBm, at 1.0kHz) 2-Wire to 4-Wire 2-Wire to 4-Wire 2-Wire to 4-Wire 4-Wire to 2-Wire 4-Wire to 2-Wire 5 HC5523 +5V ±5 -5V ±5 0Ω 0Ω 10nF ...

Page 6

... Open Circuit Voltage ( TIP RING LOOP CURRENT DETECTOR On-Hook to Off-Hook Off-Hook to On-Hook Loop Current Hysteresis GROUND KEY DETECTOR Tip/Ring Current Difference - Trigger Tip/Ring Current Difference - Reset Hysteresis 6 HC5523 +5V ±5 -5V ±5 0Ω 0Ω 10nF ...

Page 7

... Open Circuit State On-Hook, Standby On-Hook, Active Off-Hook, Active TEMPERATURE GUARD Thermal Shutdown SUPPLY CURRENTS (V = -28V) BAT Open Circuit State (C1 On-Hook Standby State (C1 On-Hook 7 HC5523 +5V ±5 -5V ±5 0Ω 0Ω 10nF ...

Page 8

... L 600Ω Circuit Operation and Design Information The HC5523 is a current feed voltage sense Subscriber Line Interface Circuit (SLIC). This means that for short loop applications the SLIC provides a programed constant current to the tip and ring terminals while sensing the tip to ring voltage. ...

Page 9

... RESISTIVE FEED REGION LOOP CURRENT (mA) R 100kΩ 4kΩ 2kΩ 100kΩ 1.5kΩ 700Ω L FIGURE 15 HC5523 + - LOOP CURRENT CIRCUIT I TIP I RING SATURATION GUARD - + CIRCUIT -5V FIGURE 13. DC LOOP CURRENT The Saturation Guard circuit (Figure 13) monitors the tip to = 23mA 4.0kΩ ...

Page 10

... Loop current in the standby state Loop resistance Battery voltage. BAT 10 HC5523 A = 250 + - 250 HC5523 FIGURE 16. SIMPLIFIED AC TRANSMISSION CIRCUIT (AC) Transmission Path SLIC in the Active Mode Figure 16 shows a simplified AC transmission model. Circuit analysis yields the following design equations  V  TX  ...

Page 11

... Z  B Example: Given: R value The value of Z (EQ. 17 HC5523 (EQ. 18 the L (EQ. 19) Supervisory Functions / The loop current, ground key and the ring trip detector = 0 outputs are multiplexed to a single logic output pin called DET. See Table 1 to determine the active detector for a (EQ ...

Page 12

... RD where 0.5ms + - TIP GROUND KEY COMPARATOR HC5523 The value – TIP RING L ----------------------------------- - = --------- - 600 300 current results in a voltage drop across R exceeds 1.25V, and the logic is D adds an additional voltage ...

Page 13

... DVC, this change C and G . The output are the differential currents ∆I and ∆ and I have current gains of 250 single T R that is equal to 500(∆I) and 500(∆ now correlated, power savings due O DET HC5523 / which in turn 2 and ...

Page 14

... Digital Logic Inputs Table 1 is the logic truth table for the TTL compatible logic input pins. The HC5523 has two enable inputs pins (E0, E1) and two control inputs pins (C1, C2). The enable pin E0 is used to enable or disable the DET output pin. The DET pin is enabled logic level 0 and disabled logic level 1 ...

Page 15

... Power-Up Sequence The HC5523 has no required power-up sequence. This is a result of the Dielectrically Isolated (DI) process used in the fabrication of the part. By using the DI process, care is no longer required to insure that the substrate be kept at the most negative potential as with junction isolated ICs ...

Page 16

... vary frequency from 300Hz to 4 HC5523 3.4kHz and compare to 1kHz reading. V 18. Four-Wire to Four-Wire Frequency Response - The to 4-wire frequency response is measured with respect 0dBm at 1.0kHz, E response is computed using the following equation: F 3.4kHz and compare to 1kHz reading. ...

Page 17

... Compare difference between trigger and reset. 30. Power Supply Rejection Ratio - Inject a 100mV (50Hz to 4kHz and V BAT CC EE puted using the following equation: PSRR = 20 • log ( and 12. 17 HC5523 C signal RMS supplies. PSRR is com- are defined in Figure IN ...

Page 18

... TIPX Output of tip power amplifier RINGX Output of ring power amplifier. 3, 10, N/C No internal connection. 17 HC5523 DESCRIPTION . C is required to properly separate the ring AC current from the connected to HPT required to properly separate the tip AC current from the connected to HPR. ...

Page 19

... Pinouts HC5523 (PLCC) TOP VIEW RINGRLY BAT N/C 10 DET HC5523 N HPT 20 HPR HC5523 (PDIP) TOP VIEW HPT 1 22 HPR ...

Page 20

... Diode, 1N4454 Line Resistor, 20Ω, 1% Match Carbon column resistor or thick film on ceramic NOTES: 31 recommended that the anodes of D 32. To meet the specified 25dB 2-wire return loss at 200Hz HC5523 C (NOTE 32 HPT - ...

Page 21

... E1 include mold mismatch and are measured at the extreme material condition at the body parting line. - measured at seating plane 5. Centerline to be determined where center leads exit plastic body. 6. “N” is the number of terminal positions. 21 HC5523 N28.45 0.004 (0.10 LEAD PLASTIC LEADED CHIP CARRIER PACKAGE 0.025 (0.64) R ...

Page 22

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 22 HC5523 E22.4 22 LEAD DUAL-IN-LINE PLASTIC PACKAGE SYMBOL ...

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