LE77D112BTCT

LE77D112BTCT Datasheet

Le77D11

Part	Datasheet
LE77D112BTCT	LE77D112BTCT (pdf)

Related Parts	Information
LE77D112BTC	LE77D112BTC

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Le77D11 Voice Over Subscriber Line Interface Circuit VE770 Series - Short/Medium Loop approximately 2000 ft. of 26 AWG, and 5 REN loads - Voice over IP/DSL Integrated Access Devices, Smart Residential Gateways, Home Gateway/Router - Cable Telephony NIU, Set-Top Box, Home Side Box, Cable Modem, Cable PC - In The Loop FITL , Fiber to the Home FTTH - Wireless Local Loop, Intelligent PBX, ISDN NT1/TA - Integrated Dual-Channel Chip set Built-in boost switching power supply tracks line voltage minimizing power dissipation Only V and +12 V nominal required Wide range of input voltages +8 V to +40 V supported Minimum external discrete components 44-pin eTQFP package - Ringing 5REN Up to 90 Vpk, Balanced Sinusoidal or trapezoidal with programmable DC offset - Subscriber Loop Test/Self-Test GR-909 compliant drop test capability in both measurements and pass/fail Hazardous Potential Foreign Electromotive Force Resistive Faults Receive Off-hook Ringers Test Loop Length - World Wide Programmability Two-wire AC impedance Dual Current Limit Metering Programmable loop closure and ring trip thresholds RELATED LITERATURE - 080697 Le78D11 Data Sheet - 080716 Le77D11/Le78D11 Chip Set User’s Guide - 081013 Layout Considerations for the Le77D11 and Le9502 Application Note ORDERING INFORMATION An Le78D11 VoSLAC device must be used with this part. Device Package Le77D112TC Le77D112BTC 44-pin eTQFP 44-pin eTQFP Green package * *Green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. BLOCK DIAGRAM Le77D11 SLIC Le78D11 Codec Switching Power Supply 2-wire to 4-wire conversion Codec Interface 2-wire to 4-wire conversion Switching Power Supply 2-wire Tip+Ring Interface 2-wire Tip+Ring Interface Ring Tip Ring Tip Document ID# 080696 Date Sep 19, 2007 Version 2 Distribution Public Document Le77D11 Data Sheet TABLE OF CONTENTS Applications Features Related Literature Ordering Information. Description. Block Diagram Product Description Block Descriptions Zarlink Semiconductor Inc. Le77D11 Data Sheet PRODUCT DESCRIPTION The dual channel Le77D11 VoSLIC device uses reliable, dielectrically isolated, fully complementary bipolar technology to implement BORSCHT functions for short loop applications. Internal power dissipation is minimized by two independent line voltage tracking, buck-boost switching regulators. Two power supplies are required V and a positive supply VSW . A TTLlevel clock driven by the Le78D11 VoSLAC device is required for switcher operation. Six programmable states control loop signaling, transmission, and ringing. The Le77D11 Dual VoSLIC device DC current limit ISC is programmable from 15 to 45 mA. The following diagram demonstrates a typical application. Figure Typical Le77D11 VoSLIC Device/Le78D11 VoSLAC device Application in an 8-Port Integrated Access Device in Customer Premises Le77D11 Le78D11 Dout Le77D11 Le78D11 Le77D11 Le78D11 PCM I/F DCLK/CS DSP Network Processor Le77D11 Le78D11 Dout Data Interfaces MODEM Loop/Cable WLL DSLAM/ HEADEND Ethernet USB HomePNA BLOCK DESCRIPTIONS Figure Le77D11 VoSLIC Device Block Diagram A1 TIP B1 RING VREG 1 SD1 ILS1 CHS 1 VSW CHCLK FSET SD2 ILS2 CHS 2 VREG 2 A2 TIP B2 RING Fault Detection 2-Wire Interface Switcher Controller Signal Transmission Signal Conditioning Control Logic F1 NPRFILT 1 VIN1 VOUT 1 VHP 1 CFILT 1 LPF 1 IMT1 RDC1 C11 C21 C31 Switcher Controller version JCBB. • Included operational issues from errata notice April 29, • Enhanced format of package drawing in Physical Dimensions, on page 21 • Added new headers/footers due to Zarlink purchase of Legerity on August 3, 2007 Zarlink Semiconductor Inc. For more information about all Zarlink products visit our Web Site at Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries collectively “Zarlink” is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink. This publication is issued to provide information only and unless agreed by Zarlink in writing may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink’s conditions of sale which are available on request. Purchase of Zarlink’s I2C components conveys a license under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink, ZL, the Zarlink Semiconductor logo and the Legerity logo and combinations thereof, VoiceEdge, VoicePort, SLAC, ISLIC, ISLAC and VoicePath are trademarks of Zarlink Semiconductor Inc. TECHNICAL DOCUMENTATION - NOT FOR RESALE

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Le77D11

Voice Over Subscriber Line Interface Circuit VE770 Series
- Short/Medium Loop approximately 2000 ft. of 26 AWG, and 5 REN loads
- Voice over IP/DSL Integrated Access Devices, Smart Residential Gateways, Home Gateway/Router
- Cable Telephony NIU, Set-Top Box, Home Side Box, Cable Modem, Cable PC
- In The Loop FITL , Fiber to the Home FTTH
- Wireless Local Loop, Intelligent PBX, ISDN NT1/TA
- Integrated Dual-Channel Chip set Built-in boost switching power supply tracks line voltage minimizing power dissipation Only V and +12 V nominal required Wide range of input voltages +8 V to +40 V supported Minimum external discrete components 44-pin eTQFP package
- Ringing 5REN Up to 90 Vpk, Balanced Sinusoidal or trapezoidal with programmable DC offset
- Subscriber Loop Test/Self-Test GR-909 compliant drop test capability in both measurements and pass/fail Hazardous Potential Foreign Electromotive Force Resistive Faults Receive Off-hook Ringers Test Loop Length
- World Wide Programmability Two-wire AC impedance Dual Current Limit Metering Programmable loop closure and ring trip thresholds

RELATED LITERATURE
- 080697 Le78D11 Data Sheet - 080716 Le77D11/Le78D11 Chip Set User’s Guide - 081013 Layout Considerations for the Le77D11 and

Le9502 Application Note
ORDERING INFORMATION

An Le78D11 VoSLAC device must be used with this part.

Device

Package

Le77D112TC Le77D112BTC
44-pin eTQFP 44-pin eTQFP Green package *
*Green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment.

BLOCK DIAGRAM

Le77D11 SLIC

Le78D11 Codec

Switching Power Supply
2-wire to 4-wire conversion

Codec Interface
2-wire to 4-wire conversion

Switching Power Supply
2-wire Tip+Ring Interface
2-wire Tip+Ring Interface

Ring Tip

Ring Tip

Document ID# 080696 Date Sep 19, 2007

Version 2

Distribution Public Document

Le77D11

Data Sheet

TABLE OF CONTENTS
Applications Features Related Literature Ordering Information. Description. Block Diagram Product Description Block Descriptions

Zarlink Semiconductor Inc.

Le77D11

Data Sheet

PRODUCT DESCRIPTION

The dual channel Le77D11 VoSLIC device uses reliable, dielectrically isolated, fully complementary bipolar technology to implement BORSCHT functions for short loop applications. Internal power dissipation is minimized by two independent line voltage tracking, buck-boost switching regulators. Two power supplies are required V and a positive supply VSW . A TTLlevel clock driven by the Le78D11 VoSLAC device is required for switcher operation. Six programmable states control loop signaling, transmission, and ringing. The Le77D11 Dual VoSLIC device DC current limit ISC is programmable from 15 to 45 mA. The following diagram demonstrates a typical application.

Figure Typical Le77D11 VoSLIC Device/Le78D11 VoSLAC device Application in an 8-Port Integrated Access Device in Customer Premises

Le77D11

Le78D11

Dout

Le77D11

Le78D11

Le77D11

Le78D11

PCM I/F DCLK/CS

DSP Network Processor

Le77D11

Le78D11 Dout

Data Interfaces

MODEM

Loop/Cable WLL

DSLAM/ HEADEND

Ethernet USB HomePNA

BLOCK DESCRIPTIONS

Figure Le77D11 VoSLIC Device Block Diagram

A1 TIP B1 RING

VREG 1 SD1 ILS1

CHS 1

VSW CHCLK

FSET

SD2 ILS2 CHS 2 VREG 2 A2 TIP

B2 RING

Fault Detection
2-Wire Interface

Switcher Controller

Signal Transmission

Signal Conditioning

Control Logic

F1 NPRFILT 1 VIN1 VOUT 1 VHP 1 CFILT 1 LPF 1 IMT1 RDC1

C11 C21 C31

Switcher Controller
version JCBB.
• Included operational issues from errata notice April 29,
• Enhanced format of package drawing in Physical Dimensions, on page 21
• Added new headers/footers due to Zarlink purchase of Legerity on August 3, 2007

Zarlink Semiconductor Inc.

For more information about all Zarlink products visit our Web Site at

Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries collectively “Zarlink” is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service or for any infringement of patents or other intellectual property rights owned by third parties which may result from such application or use. Neither the supply of such information or purchase of product or service conveys any license, either express or implied, under patents or other intellectual property rights owned by Zarlink or licensed from third parties by Zarlink, whatsoever. Purchasers of products are also hereby notified that the use of product in certain ways or in combination with Zarlink, or non-Zarlink furnished goods or services may infringe patents or other intellectual property rights owned by Zarlink.

This publication is issued to provide information only and unless agreed by Zarlink in writing may not be used, applied or reproduced for any purpose nor form part of any order or contract nor to be regarded as a representation relating to the products or services concerned. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee express or implied is made regarding the capability, performance or suitability of any product or service. Information concerning possible methods of use is provided as a guide only and does not constitute any guarantee that such methods of use will be satisfactory in a specific piece of equipment. It is the user’s responsibility to fully determine the performance and suitability of any equipment using such information and to ensure that any publication or data used is up to date and has not been superseded. Manufacturing does not necessarily include testing of all functions or parameters. These products are not suitable for use in any medical products whose failure to perform may result in significant injury or death to the user. All products and materials are sold and services provided subject to Zarlink’s conditions of sale which are available on request.

Purchase of Zarlink’s I2C components conveys a license under the Philips I2C Patent rights to use these components in an I2C System, provided that the system conforms to the I2C Standard Specification as defined by Philips. Zarlink, ZL, the Zarlink Semiconductor logo and the Legerity logo and combinations thereof, VoiceEdge, VoicePort, SLAC, ISLIC, ISLAC and VoicePath are trademarks of Zarlink Semiconductor Inc.

TECHNICAL DOCUMENTATION - NOT FOR RESALE

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived LE77D112BTCT Datasheet file may be downloaded here without warranties.

Datasheet ID: LE77D112BTCT 648981