LE79R70-1FQC

LE79R70-1FQC Datasheet

Le79R70

Part	Datasheet
LE79R70-1FQC	LE79R70-1FQC (pdf)

Related Parts	Information
LE79R70DJCT	LE79R70DJCT
LE79R70-1DJCT	LE79R70-1DJCT
LE79R70-1DJC	LE79R70-1DJC
LE79R70-1FQCT	LE79R70-1FQCT
LE79R70DJC	LE79R70DJC

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Le79R70 Ringing Subscriber Line Interface Circuit VE580 Series - Integrated Access Devices IADs - Network Interface Units NIUs - Cable Modems - DSL Modems - Set Top / House Side Boxes - Intelligent PBX - Pain Gain - FXS Cards - Voice over ISDN or T1/E1 - Smart Residential Gateways - WLL, APON, FITL, NGN, and all other short-loop CPE/ Enterprise telephony applications - Ideal for ISDN-TA and set top applications - On-chip ringing with on-chip ring-trip detector - Low Standby state power - Battery operation: RELATED LITERATURE - 080917 VE790 Series RSLIC Device Product Brief - 080158 Le79R70/79/100/101 Ringing SLIC Devices Technical Overview - 080255 Le71HE0040J Evaluation Board User’s Guide - 080753 Le58QL02/021/031 QLSLAC Data Sheet ORDERING INFORMATION Device1 Package Type2, 3 Le79R70DJC Le79R70-1DJC Le79R70-1FQC Packing4 Tube Tray Zarlink reserves the right to fulfill all orders for this device with parts marked with the "Am" part number prefix until all inventory bearing this mark has been depleted. Note that parts marked with either the "Am" or the "Le" part number prefix are equivalent devices in terms of form, fit, and prefix appearing on the topside mark is the only difference. The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. Due to size constraints, QFN devices are marked by omitting the “Le” prefix and the performance grade dash character. For example, Le79R70-1QC is marked 79R701QC. For delivery using a tape and reel packing system, add a "T" suffix to the OPN Ordering Part Number when placing an order. The Le79R70 Ringing Subscriber Line Interface Circuit RSLIC device is a bipolar monolithic SLIC that offers on-chip ringing. Designers can achieve significant cost reductions at the system level for short-loop applications by integrating the ringing function on chip. Examples of such applications would be ISDN Terminal Adaptors and set top boxes. Using a CMOScompatible input waveform and wave shaping R-C network, the Le79R70 Ringing SLIC device can provide trapezoidal wave ringing to meet various design requirements. See the Le79R70 Block Diagram, on page Document ID# 080211 Date Sep 19, 2007 Version 2 Distribution Public Document Le79R70 Data Sheet TABLE OF CONTENTS Applications Features Related literature Ordering Information Description. Product Description Connection Diagram Pin Descriptions Absolute Maximum Ratings Operating Ranges Environmental Ranges Electrical Characteristics Relay Driver Schematic. DC Feed Characteristics Ring-Trip Components Test Circuits. Application Circuit. Physical Dimensions. Zarlink Semiconductor Inc. Le79R70 Data Sheet PRODUCT DESCRIPTION The Zarlink family of subscriber line interface circuit SLIC products provide the telephone interface functions required throughout the worldwide market. Zarlink SLIC devices address all major telephony markets including central office CO , private branch exchange PBX , digital loop carrier DLC , fiber-in-the-loop FITL , radio-in-the-loop RITL , hybrid fiber coax HFC , and video telephony applications. The Zarlink SLIC devices provide the two- to four-wire hybrid function, DC loop feed, and two-wire supervision. Two-wire termination is programmed by a scaled impedance network. Transhybrid balance can be achieved with an external balance circuit or simply programmed using a companion Zarlink codec/filter, such as the Le58QL0xx Quad SLAC QLSLAC device. The Le79R70 Ringing SLIC device is a bipolar monolithic SLIC that offers on-chip ringing. Now designers can achieve significant cost reductions at the system level for short-loop applications by integrating the ringing function on chip. Examples of such applications would be ISDN Terminal Adaptors and set top boxes. Using a CMOS-compatible input waveform and wave shaping R-C network, the Le79R70 Ringing SLIC can provide trapezoidal wave ringing to meet various design requirements. In order to further enhance the suitability of this device in short-loop, distributed switching applications, Zarlink has maximized power savings by incorporating battery switching on chip. The Le79R70 Ringing SLIC device switches between two battery supplies such that in the Off-hook active state, a low battery is used to save power. In order to meet the Open Circuit voltage requirements of fax machines and maintenance termination units MTU , the SLIC automatically switches to a higher voltage in the On-hook standby state. Like all of the Zarlink SLIC devices, the Le79R70 Ringing SLIC device supports on-hook transmission, ring-trip detection and programmable loop-detect threshold. The Le79R70 Ringing SLIC device is a programmable constant-current feed device with two on-chip relay drivers to operate external relays. This unique device is available in the proven Zarlink 75 V bipolar process. RTRIP1 RTRIP2 A TIP HPA HPB B RING VBAT2 VBAT1 Figure Le79R70 Block Diagram Relay Driver Relay Driver Two-Wire Interface Ring-Trip Detector Ground-Key Detector Off-Hook Detector Input Decoder and Control Signal Transmission Power-Feed Controller Switch Driver RYOUT2 RYE RYOUT1 D1 D2 C1 C2 C3 E1 DET RD VTX RSN RINGIN RDC RDCR RSGL RSGH B2EN VCC VNEG BGND AGND/DGND Zarlink Semiconductor Inc. CONNECTION DIAGRAM Le79R70 Data Sheet RYOUT2 VCC VBAT2 BGND B RING A TIP RD RYE RYOUT1 B2EN VBAT1 D1 E1 C3 C2 DET 4 5 6 7 8 9 • The 28-pin SOIC information and package was added to the Ordering Information and the Connection Diagrams sections. • The physical dimensions PL032 and SOW28 were added to the Physical Dimensions section. • Updated the Pin Description table to correct inconsistencies. • Changed Ring-Trip Components equation from: RRT1 15 µA • 300 • CF • RLRT + 150 + 2RF RLRT RRT1 5 24 µA • 320 • CF • RLRT + 150 + 2RF • In “Ordering Information” section, added description for wafer foundry facility optional character. • Updated device name from “Am79R70” to “Le79R70” throughout document. • Added QFN package to “Connection Diagram,” “Absolute Maximum Ratings,” and “Physical Dimensions.” • Removed reference to PLCC package type in “General Description.” • Ordering Information Temperature statement updated to standard. • Absolute Maximum Ratings Notes updated to standard. • Operating Ranges Temperature statement updated to standard. • Added green package OPNs to Ordering Information, on page 1 • Added Package Assembly, on page 6 • Added "Packing" column and Note 5 to Ordering Information, on page 1 • Updated 32QFN drawing in Physical Dimensions, on page 19 • Added green package OPNs and removed OPN for SOIC package in Ordering Information, on page 1 • Removed SOIC drawing in Physical Dimensions, on page 19 • Added note to Physical Dimensions, on page 19 • Removed the following OPNs from Ordering Information, on page 1 Le79R70JC, Le79R70-1JC, Le79R70QC, Le79R701QC. • Changed IL Loop-Current Accuracy from to in Electrical Characteristics. • Enhanced format of package drawings in Physical Dimensions, on page 19 • 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

PDF Datasheet Preview

Le79R70

Ringing Subscriber Line Interface Circuit VE580 Series
- Integrated Access Devices IADs - Network Interface Units NIUs - Cable Modems - DSL Modems - Set Top / House Side Boxes - Intelligent PBX - Pain Gain - FXS Cards - Voice over ISDN or T1/E1 - Smart Residential Gateways - WLL, APON, FITL, NGN, and all other short-loop CPE/

Enterprise telephony applications
- Ideal for ISDN-TA and set top applications - On-chip ringing with on-chip ring-trip detector - Low Standby state power - Battery operation:

RELATED LITERATURE
- 080917 VE790 Series RSLIC Device Product Brief - 080158 Le79R70/79/100/101 Ringing SLIC Devices

Technical Overview - 080255 Le71HE0040J Evaluation Board User’s Guide - 080753 Le58QL02/021/031 QLSLAC Data Sheet
ORDERING INFORMATION

Device1

Package Type2, 3

Le79R70DJC

Le79R70-1DJC

Le79R70-1FQC

Packing4 Tube Tray

Zarlink reserves the right to fulfill all orders for this device with parts marked with the "Am" part number prefix until all inventory bearing this mark has been depleted. Note that parts marked with either the "Am" or the "Le" part number prefix are equivalent devices in terms of form, fit, and prefix appearing on the topside mark is the only difference.

The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment.

Due to size constraints, QFN devices are marked by omitting the “Le” prefix and the performance grade dash character. For example, Le79R70-1QC is marked 79R701QC.
For delivery using a tape and reel packing system, add a "T" suffix to the OPN Ordering Part Number when placing an order.

The Le79R70 Ringing Subscriber Line Interface Circuit RSLIC device is a bipolar monolithic SLIC that offers on-chip ringing. Designers can achieve significant cost reductions at the system level for short-loop applications by integrating the ringing function on chip. Examples of such applications would be ISDN Terminal Adaptors and set top boxes. Using a CMOScompatible input waveform and wave shaping R-C network, the Le79R70 Ringing SLIC device can provide trapezoidal wave ringing to meet various design requirements.

See the Le79R70 Block Diagram, on page

Document ID# 080211 Date Sep 19, 2007

Version 2

Distribution Public Document

Le79R70

Data Sheet

TABLE OF CONTENTS
Applications Features Related literature Ordering Information Description. Product Description Connection Diagram

Pin Descriptions Absolute Maximum Ratings Operating Ranges

Environmental Ranges Electrical Characteristics Relay Driver Schematic. DC Feed Characteristics Ring-Trip Components Test Circuits. Application Circuit. Physical Dimensions.

Zarlink Semiconductor Inc.

Le79R70

Data Sheet

PRODUCT DESCRIPTION

The Zarlink family of subscriber line interface circuit SLIC products provide the telephone interface functions required throughout the worldwide market. Zarlink SLIC devices address all major telephony markets including central office CO , private branch exchange PBX , digital loop carrier DLC , fiber-in-the-loop FITL , radio-in-the-loop RITL , hybrid fiber coax HFC , and video telephony applications.

The Zarlink SLIC devices provide the two- to four-wire hybrid function, DC loop feed, and two-wire supervision. Two-wire termination is programmed by a scaled impedance network. Transhybrid balance can be achieved with an external balance circuit or simply programmed using a companion Zarlink codec/filter, such as the Le58QL0xx Quad SLAC QLSLAC device.

The Le79R70 Ringing SLIC device is a bipolar monolithic SLIC that offers on-chip ringing. Now designers can achieve significant cost reductions at the system level for short-loop applications by integrating the ringing function on chip. Examples of such applications would be ISDN Terminal Adaptors and set top boxes. Using a CMOS-compatible input waveform and wave shaping R-C network, the Le79R70 Ringing SLIC can provide trapezoidal wave ringing to meet various design requirements.

In order to further enhance the suitability of this device in short-loop, distributed switching applications, Zarlink has maximized power savings by incorporating battery switching on chip. The Le79R70 Ringing SLIC device switches between two battery supplies such that in the Off-hook active state, a low battery is used to save power. In order to meet the Open Circuit voltage requirements of fax machines and maintenance termination units MTU , the SLIC automatically switches to a higher voltage in the On-hook standby state.

Like all of the Zarlink SLIC devices, the Le79R70 Ringing SLIC device supports on-hook transmission, ring-trip detection and programmable loop-detect threshold. The Le79R70 Ringing SLIC device is a programmable constant-current feed device with two on-chip relay drivers to operate external relays. This unique device is available in the proven Zarlink 75 V bipolar process.

RTRIP1 RTRIP2

A TIP HPA

HPB B RING

VBAT2 VBAT1

Figure Le79R70 Block Diagram

Relay Driver Relay Driver

Two-Wire Interface

Ring-Trip Detector

Ground-Key Detector

Off-Hook Detector

Input Decoder and Control

Signal Transmission

Power-Feed Controller

Switch Driver

RYOUT2 RYE RYOUT1

D1 D2 C1 C2 C3 E1 DET

RD VTX RSN

RINGIN RDC RDCR

RSGL RSGH B2EN

VCC VNEG BGND AGND/DGND

Zarlink Semiconductor Inc.

CONNECTION DIAGRAM

Le79R70

Data Sheet

RYOUT2 VCC VBAT2 BGND B RING A TIP RD

RYE RYOUT1

B2EN VBAT1

D1 E1 C3 C2 DET
4 5 6 7 8 9
• The 28-pin SOIC information and package was added to the Ordering Information and the Connection Diagrams sections.
• The physical dimensions PL032 and SOW28 were added to the Physical Dimensions section.
• Updated the Pin Description table to correct inconsistencies.
• Changed Ring-Trip Components equation from:

RRT1
15 µA
• 300
• CF
• RLRT + 150 + 2RF

RLRT

RRT1
5 24 µA
• 320
• CF
• RLRT + 150 + 2RF
• In “Ordering Information” section, added description for wafer foundry facility optional character.
• Updated device name from “Am79R70” to “Le79R70” throughout document.
• Added QFN package to “Connection Diagram,” “Absolute Maximum Ratings,” and “Physical Dimensions.”
• Removed reference to PLCC package type in “General Description.”
• Ordering Information Temperature statement updated to standard.
• Absolute Maximum Ratings Notes updated to standard.
• Operating Ranges Temperature statement updated to standard.
• Added green package OPNs to Ordering Information, on page 1
• Added Package Assembly, on page 6
• Added "Packing" column and Note 5 to Ordering Information, on page 1
• Updated 32QFN drawing in Physical Dimensions, on page 19
• Added green package OPNs and removed OPN for SOIC package in Ordering Information, on page 1
• Removed SOIC drawing in Physical Dimensions, on page 19
• Added note to Physical Dimensions, on page 19
• Removed the following OPNs from Ordering Information, on page 1 Le79R70JC, Le79R70-1JC, Le79R70QC, Le79R701QC.
• Changed IL Loop-Current Accuracy from to in Electrical Characteristics.
• Enhanced format of package drawings in Physical Dimensions, on page 19
• 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 LE79R70-1FQC Datasheet file may be downloaded here without warranties.

Datasheet ID: LE79R70-1FQC 648990