LE78D110BVCT

LE78D110BVCT Datasheet

Le78D11

Part	Datasheet
LE78D110BVCT	LE78D110BVCT (pdf)

Related Parts	Information
LE78D110BVC	LE78D110BVC

PDF Datasheet Preview
Le78D11 Integrated Voice Chip Sets VE770 Series - Ideal for Short/Medium Loops of ~2000 ft, 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 Chipset Switching regulator support 44-pin TQFP Package V Operation - 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 Real-time automatic line fault detection & reporting Loop Supervision AC/DC Faults Integrated self tests Loopback tests Checksum of programmed values - µ-law, A-law, ADPCM or linear coding - Industry Standard Interfaces PCM/SPI or GCI - World Wide programmability: Ringing waveform generation and control Two-wire AC impedance Trans-hybrid balance with Adaptation Gain Programmable loop closure/ringtrip thresholds Metering Tone Generation Call Progress Tones - DTMF Generation AND Detection - FSK/Caller ID Tone Generation -Type I, Type II, & worldwide - Modem/Fax Tone Detection - Low power dissipation RELATED LITERATURE - 080696 Le77D11 VoSLIC Device Data Sheet - 080716 Le77D11 /Le78D11 Chip Set User’s Guide - 081081 Le71HE0011 Evaluation Board User’s Guide - 080729 VoicePath API Software Product Brief - 080727 WinSLAC Software Product Brief ORDERING INFORMATION A Zarlink VoSLIC device must be used with this part. Device Package LE78D110VC 44-pin TQFP LE78D110BVC 44-pin TQFP Green package * *Green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. The Zarlink Le78D11 VoSLAC device has enhanced and optimized features to directly address the requirements of Voice over Broadband VoB applications. Their common goal is to reduce system level cost, board space, and power through higher levels of integration. In addition, this solution reduces the total cost of ownership of the end product by promoting higher quality of service through integrated line and self test capabilities. The VE770 series chip set uses two devices to provide a completely software configurable solution to perform the BORSCHT functions for two lines, including provision of a single line battery voltage. The resulting system is less complex, smaller, and denser, yet cost-effective with minimal external components. Easy integration into the end application is enabled by the VoicePath API Software. Written in ANSI “C,” the software development kit reduces the complexity of adding voice into a product and makes use of the more sophisticated chip set functions, such as Caller ID. It includes a management tool that works with the WinSLAC Coefficient Generator to easily support multiple market applications. BLOCK DIAGRAM Le77D11 / Le77D21 Dual VoSLAC Voice Signal Processor Dual VoSLIC / VoSLICABS Tone Detection & Signal Generation Line Measurement PLL Clock Generator Le78D11 GCI Interface GCI PCM Interface and Time Slot Assigner Serial Peripheral SLIC Interface Interface Document ID# 080697 Date Sep 19, 2007 Version 2 Distribution Public Document Le78D11 Data Sheet TABLE OF CONTENTS Applications Features Related Literature Ordering Information. Description. Block Diagram List of Figures Product Description Block Descriptions Zarlink Semiconductor Inc. Le78D11 Data Sheet LIST OF FIGURES Figure Le78D11 VoSLAC Device Block Diagram Transmit Path Attenuation vs. Frequency Receive Path Attenuation vs. Frequency Group Delay Distortion. A-law Gain Linearity with Tone Input Both Paths µ-law Gain Linearity with Tone Input Both Paths . A/A Overload Compression Total Distortion with Tone Input Both Paths Discrimination Against Out-of-Band Signals Spurious Out-of-Band Signals Microprocessor Interface Input Mode Microprocessor Interface Output Mode PCM Highway Timing for XE = 0 Transmit on Negative PCLK Edge PCM Highway Timing for XE = 1 Transmit on Positive PCLK Edge Master Clock Timing Chopper Clock Timing Input and Output Waveforms for AC tests MHz DCL GCI Operation MHz DCL GCI Operation Zarlink Semiconductor Inc. Le78D11 Data Sheet PRODUCT DESCRIPTION The Le78D11 VoSLAC device contains high performance circuits that provide A/D and D/A conversion for two sets of voice codec , loop supervision, and line diagnostic functions. Fixed function DSP resources in the device are used to perform modem detection, DTMF detection, ADPCM voice compression, and echo cancellation. Although the device offers a high degree of programmability, the available WinSLAC and VoicePath software packages allow the user to easily configure and control the Voice Line Circuits VLC and the programmable filter coefficients and loop supervision data are easily calculated. The main functions that can be observed and controlled through the Le78D11 VoSLAC device are: • Off Hook detection • Ring trip detection • Line Fault Indication • Ground Key detection • DTMF detection • Fax and Modem tone 1100 Hz and 2100 Hz detection • DC Loop Current Limit • Ring Generation • Subscriber line impedance matching • Metering Signal Generation • Line Circuit test In order for the Le78D11 VoSLAC device to accomplish the above functions, it must receive input from the Zarlink Le77D11 devices, which sense the following parameters and scale them appropriately for the Le78D11 VoSLAC device: • VIN A metallic AC voltage that is proportional to the upstream AC loop current • IMT A current that is proportional to the DC + AC loop current • F A logic Low indicates a fault or ground key condition The Le78D11 VoSLAC device then outputs the following to the Le77D11 SLIC device: • VDC DC loop current limit threshold control voltage • VOUT Downstream voice and low level metering signals or internal ringing or test signals The Le78D11 device performs the codec and filter functions associated with the 4-wire section of the subscriber line circuitry in a digital switch. These functions involve converting an analog voice signal into digital PCM samples and converting digital PCM samples back into an analog signal. During conversion, digital filters are used to band-limit the voice signals. The user programmable filters set the receive and transmit gain, perform the transhybrid balancing function, permit adjustment of the 2wire termination impedance, and provide frequency distortion adjustment equalization of the receive and transmit paths. An Adaptive Transhybrid Balance filter is included that allows the Le78D11 VoSLAC device to dynamically adjust to changing line conditions minimizing objectionable echo. All programmable digital filter coefficients can be calculated using WinSLAC software. The PCM codes can be either 16-bit linear two's complement, 8-bit companded A-law or µ-law, or 32 kbit/s or 24 kbit/s ADPCM. Zarlink Semiconductor Inc. Le78D11 BLOCK DESCRIPTIONS Figure Le78D11 VoSLAC Device Block Diagram VIN1 VOUT 1 VIN2 VOUT 2 IMT1 IMT2 F1 VA1 VB1 VS1 F2 VA2 VB2 VS2 Voice Signal Processing Channel 1 Voice Signal Processing Channel 2 Line Supervision Processing VDC 1 C31 C21 C11 VDC 2 C32 C22 C12 CHCLK SLIC Interface SLI Tone Detection & Signal Generation Line Measurement Tone Detection & Signal Generation GCI Interface GCI PLL Clock Generator • Added OPN for green package in Ordering Information, on page 1 • Added Package Assembly, on page 13 • Removed all references to VoSLIC-ABS device • Modified application circuits and parts lists to reflect the 90-VPK ringing application in the VE 770 series • Added specifications for IMT accuracy and VA, VB, and VS accuracy in Transmission Specifications, on page 15 • Updated IMT Tempa Threshold voltage specification in Device DC Specifications, on page 14 • Enhanced format of package drawing in Physical Dimensions, on page 31 • 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

Le78D11

Integrated Voice Chip Sets VE770 Series
- Ideal for Short/Medium Loops of ~2000 ft, 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 Chipset

Switching regulator support 44-pin TQFP Package V Operation - 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

Real-time automatic line fault detection & reporting Loop Supervision AC/DC Faults

Integrated self tests Loopback tests Checksum of programmed values
- µ-law, A-law, ADPCM or linear coding - Industry Standard Interfaces

PCM/SPI or GCI - World Wide programmability:

Ringing waveform generation and control Two-wire AC impedance Trans-hybrid balance with Adaptation Gain Programmable loop closure/ringtrip thresholds Metering Tone Generation Call Progress Tones - DTMF Generation AND Detection - FSK/Caller ID Tone Generation -Type I, Type II, & worldwide - Modem/Fax Tone Detection - Low power dissipation

RELATED LITERATURE
- 080696 Le77D11 VoSLIC Device Data Sheet - 080716 Le77D11 /Le78D11 Chip Set User’s Guide - 081081 Le71HE0011 Evaluation Board User’s Guide - 080729 VoicePath API Software Product Brief - 080727 WinSLAC Software Product Brief
ORDERING INFORMATION

A Zarlink VoSLIC device must be used with this part.

Device

Package

LE78D110VC
44-pin TQFP

LE78D110BVC
44-pin TQFP Green package *
*Green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment.

The Zarlink Le78D11 VoSLAC device has enhanced and optimized features to directly address the requirements of Voice over Broadband VoB applications. Their common goal is to reduce system level cost, board space, and power through higher levels of integration. In addition, this solution reduces the total cost of ownership of the end product by promoting higher quality of service through integrated line and self test capabilities. The VE770 series chip set uses two devices to provide a completely software configurable solution to perform the BORSCHT functions for two lines, including provision of a single line battery voltage. The resulting system is less complex, smaller, and denser, yet cost-effective with minimal external components.

Easy integration into the end application is enabled by the VoicePath API Software. Written in ANSI “C,” the software development kit reduces the complexity of adding voice into a product and makes use of the more sophisticated chip set functions, such as Caller ID. It includes a management tool that works with the WinSLAC Coefficient Generator to easily support multiple market applications.

BLOCK DIAGRAM

Le77D11 / Le77D21

Dual VoSLAC

Voice Signal

Processor

Dual VoSLIC /

VoSLICABS

Tone Detection & Signal Generation

Line Measurement

PLL Clock Generator

Le78D11

GCI Interface GCI

PCM Interface and Time Slot Assigner

Serial Peripheral

SLIC Interface

Interface

Document ID# 080697 Date Sep 19, 2007

Version 2

Distribution Public Document

Le78D11

Data Sheet

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

Zarlink Semiconductor Inc.

Le78D11

Data Sheet

LIST OF FIGURES

Figure

Le78D11 VoSLAC Device Block Diagram Transmit Path Attenuation vs. Frequency Receive Path Attenuation vs. Frequency Group Delay Distortion. A-law Gain Linearity with Tone Input Both Paths µ-law Gain Linearity with Tone Input Both Paths . A/A Overload Compression Total Distortion with Tone Input Both Paths Discrimination Against Out-of-Band Signals Spurious Out-of-Band Signals Microprocessor Interface Input Mode Microprocessor Interface Output Mode PCM Highway Timing for XE = 0 Transmit on Negative PCLK Edge PCM Highway Timing for XE = 1 Transmit on Positive PCLK Edge Master Clock Timing Chopper Clock Timing Input and Output Waveforms for AC tests MHz DCL GCI Operation MHz DCL GCI Operation

Zarlink Semiconductor Inc.

Le78D11

Data Sheet

PRODUCT DESCRIPTION

The Le78D11 VoSLAC device contains high performance circuits that provide A/D and D/A conversion for two sets of voice codec , loop supervision, and line diagnostic functions. Fixed function DSP resources in the device are used to perform modem detection, DTMF detection, ADPCM voice compression, and echo cancellation. Although the device offers a high degree of programmability, the available WinSLAC and VoicePath software packages allow the user to easily configure and control the Voice Line Circuits VLC and the programmable filter coefficients and loop supervision data are easily calculated.

The main functions that can be observed and controlled through the Le78D11 VoSLAC device are:
• Off Hook detection
• Ring trip detection
• Line Fault Indication
• Ground Key detection
• DTMF detection
• Fax and Modem tone 1100 Hz and 2100 Hz detection
• DC Loop Current Limit
• Ring Generation
• Subscriber line impedance matching
• Metering Signal Generation
• Line Circuit test

In order for the Le78D11 VoSLAC device to accomplish the above functions, it must receive input from the Zarlink Le77D11 devices, which sense the following parameters and scale them appropriately for the Le78D11 VoSLAC device:
• VIN A metallic AC voltage that is proportional to the upstream AC loop current
• IMT A current that is proportional to the DC + AC loop current
• F A logic Low indicates a fault or ground key condition

The Le78D11 VoSLAC device then outputs the following to the Le77D11 SLIC device:
• VDC DC loop current limit threshold control voltage
• VOUT Downstream voice and low level metering signals or internal ringing or test signals

The Le78D11 device performs the codec and filter functions associated with the 4-wire section of the subscriber line circuitry in a digital switch. These functions involve converting an analog voice signal into digital PCM samples and converting digital PCM samples back into an analog signal. During conversion, digital filters are used to band-limit the voice signals. The user programmable filters set the receive and transmit gain, perform the transhybrid balancing function, permit adjustment of the 2wire termination impedance, and provide frequency distortion adjustment equalization of the receive and transmit paths. An Adaptive Transhybrid Balance filter is included that allows the Le78D11 VoSLAC device to dynamically adjust to changing line conditions minimizing objectionable echo. All programmable digital filter coefficients can be calculated using WinSLAC software. The PCM codes can be either 16-bit linear two's complement, 8-bit companded A-law or µ-law, or 32 kbit/s or 24 kbit/s ADPCM.

Zarlink Semiconductor Inc.

Le78D11 BLOCK DESCRIPTIONS

Figure Le78D11 VoSLAC Device Block Diagram

VIN1 VOUT 1

VIN2 VOUT 2

IMT1 IMT2

F1 VA1 VB1 VS1

F2 VA2 VB2 VS2

Voice Signal Processing Channel 1

Voice Signal Processing Channel 2

Line Supervision Processing

VDC 1 C31 C21 C11

VDC 2 C32 C22 C12

CHCLK

SLIC Interface SLI

Tone Detection & Signal

Generation

Line Measurement

Tone Detection & Signal

Generation

GCI Interface GCI

PLL Clock Generator
• Added OPN for green package in Ordering Information, on page 1
• Added Package Assembly, on page 13
• Removed all references to VoSLIC-ABS device
• Modified application circuits and parts lists to reflect the 90-VPK ringing application in the VE 770 series
• Added specifications for IMT accuracy and VA, VB, and VS accuracy in Transmission Specifications, on page 15
• Updated IMT Tempa Threshold voltage specification in Device DC Specifications, on page 14
• Enhanced format of package drawing in Physical Dimensions, on page 31
• 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 LE78D110BVCT Datasheet file may be downloaded here without warranties.

Datasheet ID: LE78D110BVCT 648982