HC55181CIM Intersil Corporation, HC55181CIM Datasheet

HC55181CIM

Manufacturer Part Number

HC55181CIM

Description

Manufacturer

Intersil Corporation

Datasheet

1.HC55181CIM.pdf (19 pages)

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Extended Reach Ringing SLIC Family

short and medium loop length, wireless and wireline

applications. Ideally suited for remote subscriber units, this

family of products offers ﬂexibility to designers with high

ringing voltage and low power consumption system

requirements.

The RSLIC18 family operates to 100V which translates

directly to the amount of ringing voltage supplied to the end

subscriber. With the high operating voltage, subscriber loop

lengths can be extended to 500 (i.e., 5,000 feet) and

beyond.

Other key features across the product family include: low

power consumption, ringing using sinusoidal or trapezoidal

waveforms, robust auto-detection mechanisms for when

subscribers go on or off hook, and minimal external discrete

application components. Integrated test access features are

also offered on selected products to support loopback

testing as well as line measurement tests.

There are ﬁve product offerings in the RSLIC18 family:

HC55180, HC55181, HC55182, HC55183 and HC55184.

The architecture for this family is based on a voltage feed

ampliﬁer design using low ﬁxed loop gains to achieve high

analog performance with low susceptibility to system

induced noise.

Block Diagram

RING

SW+

ILIM

SW-

TIP

POL

CONTROL

ACCESS

2-WIRE

PORT

TEST

CDC

RTD RD

DETECTOR

VBL

TRANSMIT

BATTERY

SENSING

SWITCH

LOGIC

The RSLIC18 family of

ringing subscriber line

interface circuits (RSLIC)

supports analog Plain Old

Telephone Service (POTS) in

VBH

DET ALM

HC55180, HC55181, HC55182, HC55183, HC55184

Data Sheet

CONTROL

RINGING

4-WIRE

BSEL

LOGIC

PORT

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

SWC

VRS

VRX

VTX

-IN

VFB

Features

• Battery Operation to 100V

• Low Standby Power Consumption of 50mW

• Peak Ringing Amplitude 95V, 5 REN

• Sinusoidal or Trapezoidal Ringing Capability

• Integrated CODEC Ringing Interface

• Integrated MTU DC Characteristics

• Low External Component Count

• Pulse Metering and On Hook Transmission

• Tip Open Ground Start Operation

• Thermal Shutdown with Alarm Indicator

• 28 Lead Surface Mount Packaging

• Dielectric Isolated (DI) High Voltage Design

• HC55180

• HC55181

• HC55182

• HC55183

• HC55184

Applications

• Wireless Local Loop (WLL)

• Digital Added Main Line (DAML)/Pairgain

• Integrated Services Digital Network (ISDN)

• Small Ofﬁce Home Ofﬁce (SOHO) PBX

• Cable/Computer Telephony

Related Literature

• AN9814, User’s Guide for Development Board

• AN9824, Modeling of the AC Loop

• AN TBD, Interfacing to DSP CODECs

- Silent Polarity Reversal

- 53dB Longitudinal Balance

- Loopback Test Capability

- Integrated Battery Switch

- Silent Polarity Reversal

- 58/53dB Longitudinal Balance

- Loopback and Test Access Capability

- Integrated Battery Switch

- 58/53dB Longitudinal Balance

- Loopback and Test Access Capability

- Integrated Battery Switch

- 45dB Longitudinal Balance

- Integrated Battery Switch

- Silent Polarity Reversal

- 45dB Longitudinal Balance

October 1998

RSLIC18™ is a trademark of Intersil Corporation.

File Number 4519.4

Related parts for HC55181CIM

HC55181CIM Summary of contents

Page 1

... AN9814, User’s Guide for Development Board • AN9824, Modeling of the AC Loop BSEL SWC • AN TBD, Interfacing to DSP CODECs 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 File Number 4519.4 RSLIC18™ trademark of Intersil Corporation. ...

Page 2

... HC55180, HC55181, HC55182, HC55183, HC55184 Ordering Information (PLCC Package Only) BAT PART NUMBER 100V 85V SW HC55180CIM HC55180DIM HC55181AIM HC55181BIM HC55181CIM HC55181DIM HC55182AIM HC55182BIM HC55182CIM HC55182DIM HC55183ECM 75V HC55184ECM 75V HC5518XEVAL1 Evaluation board platform, including CODEC. Device Operating Modes OPERATING MODE F2 F1 ...

Page 3

HC55180, HC55181, HC55182, HC55183, HC55184 Pinouts HC55181 (PLCC) TOP VIEW SW+ 5 SW- 6 SWC HC55183 (PLCC) TOP VIEW 4 ...

Page 4

HC55180, HC55181, HC55182, HC55183, HC55184 Absolute Maximum Ratings T A Maximum Supply Voltages ...

Page 5

HC55180, HC55181, HC55182, HC55183, HC55184 Electrical Specifications Unless Otherwise Specified -100V, -85V or -75V specified at 600 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz. Protection resistors = 0 . These parameters ...

Page 6

Electrical Speciﬁcations Unless Otherwise Speciﬁed, T loop current limit = 25mA. All AC Parameters are speciﬁed at 600W 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz. Protection resistors = 0W. HC55180 (Note 7) PARAMETER TEST CONDITIONS RINGING ...

Page 7

Electrical Speciﬁcations Unless Otherwise Speciﬁed, T loop current limit = 25mA. All AC Parameters are speciﬁed at 600W 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz. Protection resistors = 0W. (Continued) HC55180 (Note 7) PARAMETER TEST CONDITIONS ...

Page 8

HC55180, HC55181, HC55182, HC55183, HC55184 Design Equations Loop Supervision Thresholds SWITCH HOOK DETECT The switch hook detect threshold is set by a single external resistor Equation 1 is used to calculate the value 600 ...

Page 9

HC55180, HC55181, HC55182, HC55183, HC55184 Low Power Standby Overview The low power standby mode (LPS, 000) should be used during idle line conditions. The device is designed to operate from the high battery during this mode. Most of the internal ...

Page 10

HC55180, HC55181, HC55182, HC55183, HC55184 Forward Active Overview The forward active mode (FA, 001) is the primary AC transmission mode of the device. On hook transmission, DC loop feed and voice transmission are supported during forward active. Loop supervision is ...

Page 11

HC55180, HC55181, HC55182, HC55183, HC55184 Voice Transmission The feedback mechanism for monitoring the AC portion of the loop current consists of two ampliﬁers, the sense ampliﬁer (SA) and the transmit ampliﬁer (TA). The AC feedback signal is used for impedance ...

Page 12

HC55180, HC55181, HC55182, HC55183, HC55184 Reverse Active Overview The reverse active mode (RA, 011) provides the same functionality as the forward active mode. On hook transmission, DC loop feed and voice transmission are supported. Loop supervision is provided by either ...

Page 13

HC55180, HC55181, HC55182, HC55183, HC55184 Logic Control Ringing patterns consist of silent intervals. The ringing to silent pattern is called the ringing cadence. During the silent portion of ringing, the device can be programmed to any other operating mode. The ...

Page 14

HC55180, HC55181, HC55182, HC55183, HC55184 Tip Open Overview The tip open mode (110) is intended for compatibility for PBX type interfaces. Used during idle line conditions, the device does not provide transmission. Loop supervision is provided by either the switch ...

Page 15

HC55180, HC55181, HC55182, HC55183, HC55184 Uncommitted Switch Overview The uncommitted switch is a three terminal device designed for ﬂexibility. The independent logic control input, SWC, allows switch operation regardless of device operating mode. The switch is activated by a logic ...

Page 16

HC55180, HC55181, HC55182, HC55183, HC55184 Basic Application Circuits TABLE 2. BASIC APPLICATION CIRCUIT COMPONENT LIST COMPONENT U1 - Ringing SLIC ...

Page 17

HC55180, HC55181, HC55182, HC55183, HC55184 C PS1 C PS2 PS3 VCC VBL VBH VRX TIP 1 VRS HC55181 R P2 RING VTX SW+ -IN SW VFB R RTD RT R SWC SH ...

Page 18

HC55180, HC55181, HC55182, HC55183, HC55184 Additional Application Diagrams Reducing Overhead Voltages The transmission overhead voltage of the device is internally set to 4V per side. The overhead voltage may be reduced by injecting a negative DC voltage on the receive ...

Page 19

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with- out notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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