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IDT82V1074: 产品描述CHIPSET OF RINGING SUBSCRIBER LINE INTERFACE CIRCUIT (RSLIC) & QUAD PROGRAMMABLE PCM CODEC; 文件大小850KB，共107页; 制造商IDT(艾迪悌); 官网地址http://www.idt.com/

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IDT82V1074概述

CHIPSET OF RINGING SUBSCRIBER LINE INTERFACE CIRCUIT (RSLIC) & QUAD PROGRAMMABLE PCM CODEC

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CHIPSET OF RINGING SUBSCRIBER

LINE INTERFACE CIRCUIT (RSLIC) &

QUAD PROGRAMMABLE PCM CODEC

IDT82V1671 (RSLIC)

IDT82V1074 (CODEC)

FEATURES

• Programmable DC feeding characteristics

• Programmable digital filters adapting to different requirements:

−

Impedance matching

−

Transhybrid balance

−

Transmit and receive gain adjustment

−

Frequency response correction

• Off-hook and ground-key detection

• AC/DC ring trip detection

• Programmable internal balanced ringing without external

components

• Supports external ringing

• Selectable MPI and GCI interfaces

• Supports A/µ-law compressed and linear data formats

• Programmable IO pins with relay-driving or analog input

capability

• Line polarity reversal

• Integrated FSK generator for sending Caller ID information

• On-hook transmission

• 2 programmable tone generators per channel

• Integrated Universal Tone Detection (UTD) unit for fax/modem

tone detection

• Integrated Test and Diagnosis Functions (ITDF)

• Three-party conference

• Only battery and 3.3 V power supply needed

• Package available:

IDT82V1671: 28 pin PLCC

IDT82V1074: 100 pin TQFP

DESCRIPTION

The RSLIC-CODEC chipset is comprised of one four-channel

programmable PCM CODEC (IDT82V1074) and four single-channel

ringing SLICs (IDT82V1671). The chipset provides a total solution for

line card designs. In addition to providing a complete software

programmable solution for BORSCHT, additional functions such as FSK

generator, Universal Tone Detection (UTD) unit, tone generators, ringing

generator, Integrated Test and Diagnosis Functions (ITDF), line polarity

reversal and three-party conference are integrated in to the chipset. The

high integration of system functions reduces board space requirements

of the line card and saves cost.

The chipset is fully programmable via a Microprocessor Interface

(MPI) or a General Circuit Interface (GCI). In both MPI and GCI modes,

the chipset supports A/µ-law companding format or linear data format.

Programmable digital filters on the chipset provide the necessary

transmit and receive filtering to realize impedance matching, transhybrid

balance, frequency response correction and transmit/receive gains

adjustment. The full programmability optimizes the performance of line

card products and allows one line card to adapt to different requirements

worldwide.

The powerful Integrated Test and Diagnosis Functions (ITDF)

accomplish necessary tests and measurements without external test

equipment or relays. This brings convenience to system maintenance

and diagnosis.

This chipset can be used in digital telecommunication applications

such as VoIP, VoATM, PBX, CO and DLC etc.

CHIPSET FUNCTIONAL BLOCK DIAGRAM

CODEC

Level

Metering

Off-hook

Detection

DC Feed

Protection

Circuit

Telephone

Protection

Circuit

Telephone

RSLIC

Protection

Circuit

Telephone

MPI

Interface

Microprocessor

RSLIC

DSP

Filtering

PCM/GCI

Interface

PCM/GCI

CID

UTD

Telephone

Protection

Circuit

RSLIC

Self Test

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

INDUSTRIAL TEMPERATURE RANGE

2003

Integrated Device Technology, Inc.

FEBRUARY 16, 2004

DSC-6042/3

RSLIC (IDT82V1671) & CODEC (IDT82V1074) CHIPSET

INDUSTRIAL TEMPERATURE RANGE

TABLE OF CONTENTS

Pin Configurations .............................................................................................................................................................................................9

1.1 RSLIC Pin Configuration ...........................................................................................................................................................................9

1.2 CODEC Pin Configuration .......................................................................................................................................................................10

Pin Descriptions...............................................................................................................................................................................................11

2.1 RSLIC Pin Description.............................................................................................................................................................................11

2.2 CODEC Pin Description ..........................................................................................................................................................................12

Functional Description ....................................................................................................................................................................................16

3.1 Functions Overview .................................................................................................................................................................................16

3.1.1 Basic Functions ..........................................................................................................................................................................16

3.1.2 Additional Functions ...................................................................................................................................................................16

3.1.3 Programmable Functions ...........................................................................................................................................................16

3.2 DC Feeding .............................................................................................................................................................................................17

3.2.1 DC Feeding Characteristic Zones ..............................................................................................................................................17

3.2.2 Constant Current Zone...............................................................................................................................................................17

3.2.3 Resistive Zone............................................................................................................................................................................17

3.2.4 Constant Voltage Zone...............................................................................................................................................................17

3.2.5 DC Feeding Characteristics Configuration .................................................................................................................................18

3.3 Speech Processing..................................................................................................................................................................................20

3.3.1 AC Transmission ........................................................................................................................................................................20

3.3.1.1 Transmit Path ............................................................................................................................................................20

3.3.1.2 Receive Path ..............................................................................................................................................................21

3.3.2 Programmable Filters .................................................................................................................................................................21

3.3.2.1 Impedance Matching ..................................................................................................................................................21

3.3.2.2 Transhybrid Balance...................................................................................................................................................22

3.3.2.3 Frequency Response Correction................................................................................................................................22

3.3.2.4 Gain Adjustment .........................................................................................................................................................22

3.4 Ring and Ring Trip...................................................................................................................................................................................23

3.4.1 Internal Ringing Mode ................................................................................................................................................................23

3.4.1.1 Internal Ringing Generation........................................................................................................................................23

3.4.1.2 Ring Trip Detection In Internal Ringing Mode.............................................................................................................23

3.4.2 External Ringing Mode ...............................................................................................................................................................24

3.4.2.1 Ring Trip Detection In External Ringing Mode............................................................................................................25

3.5 Supervision..............................................................................................................................................................................................27

3.5.1 Off-hook Detection .....................................................................................................................................................................27

3.5.2 Ground-Key Detection................................................................................................................................................................29

3.6 Metering by Polarity Reversal..................................................................................................................................................................29

3.7 Enhanced Signal Processing...................................................................................................................................................................30

3.7.1 Tone Generator ..........................................................................................................................................................................30

3.7.1.1 DTMF Generation.......................................................................................................................................................30

3.7.2 FSK Generation for Caller ID .....................................................................................................................................................30

3.7.3 Universal Tone Detection (UTD) ................................................................................................................................................34

3.7.3.1 Introduction.................................................................................................................................................................34

3.7.3.2 UTD Principle .............................................................................................................................................................34

3.7.3.3 UTD Programming......................................................................................................................................................36

3.8 Three-Party Conference ..........................................................................................................................................................................37

3.8.1 Introduction.................................................................................................................................................................................37

3.8.2 PCM Interface Configuration ......................................................................................................................................................37

3.8.3 Control the Active PCM Channels..............................................................................................................................................38

3.9 ITDF.........................................................................................................................................................................................................40

3.9.1 Introduction.................................................................................................................................................................................40

3.9.2 Diagnosis and Test Functions ....................................................................................................................................................40

3.9.3 Integrated Signal Generators .....................................................................................................................................................40

3.9.4 Level Meter.................................................................................................................................................................................40

3.9.4.1 Level Meter Source Selection.....................................................................................................................................40

RSLIC (IDT82V1671) & CODEC (IDT82V1074) CHIPSET

INDUSTRIAL TEMPERATURE RANGE

3.9.5

3.9.6

3.9.4.2 Level Meter Gain Filter and Rectifier ..........................................................................................................................41

3.9.4.3 Level Meter Integrator ................................................................................................................................................42

3.9.4.4 Level Meter Result Register .......................................................................................................................................43

3.9.4.5 Level Meter Shift Factor .............................................................................................................................................43

3.9.4.6 Level Meter Threshold Setting....................................................................................................................................43

Measurement via AC Level Meter ..............................................................................................................................................45

3.9.5.1 Current Measurement via VTAC.................................................................................................................................45

3.9.5.2 AC Level Meter Operational State Flow .....................................................................................................................45

Measurement via DC Level Meter..............................................................................................................................................45

3.9.6.1 Offset Current Measurement ......................................................................................................................................45

3.9.6.2 Leakage Current Measurement..................................................................................................................................45

3.9.6.3 Loop Resistance Measurement..................................................................................................................................46

3.9.6.4 Line Resistance Tip/GND and Ring/GND...................................................................................................................46

3.9.6.5 Capacitance Measurement.........................................................................................................................................47

3.9.6.6 Voltage Measurement ................................................................................................................................................48

3.9.6.7 Voltage Offset Measurement......................................................................................................................................49

3.9.6.8 Ring Trip Operational Amplifier Offset Measurement.................................................................................................49

Interface ............................................................................................................................................................................................................50

4.1 PCM/MPI Interface ..................................................................................................................................................................................50

4.1.1 MPI Control Interface .................................................................................................................................................................50

4.1.2 PCM Interface ............................................................................................................................................................................51

4.1.2.1 PCM Clock Configuration ...........................................................................................................................................51

4.1.2.2 Time Slot Assignment.................................................................................................................................................52

4.1.2.3 PCM Highway Selection .............................................................................................................................................52

4.2 GCI Interface ...........................................................................................................................................................................................52

4.2.1 Compressed GCI Mode..............................................................................................................................................................52

4.2.2 Linear GCI Mode ........................................................................................................................................................................52

4.2.3 Command/Indication (C/I) Channel ............................................................................................................................................55

4.2.3.1 Downstream C/I Channel Byte ...................................................................................................................................55

4.2.3.2 Upstream C/I Channel Byte........................................................................................................................................55

4.2.4 GCI Monitor Transfer Protocol....................................................................................................................................................56

4.2.4.1 Monitor Channel Operation ........................................................................................................................................56

4.2.4.2 Monitor Handshake Procedure...................................................................................................................................56

4.3 Analog POTS Interface............................................................................................................................................................................58

4.4 RSLIC and CODEC Interface ..................................................................................................................................................................58

Programming....................................................................................................................................................................................................59

5.1 Overview..................................................................................................................................................................................................59

5.1.1 MPI Programming ......................................................................................................................................................................59

5.1.1.1 Broadcast Mode for MPI Programming ......................................................................................................................59

5.1.1.2 Identification Code for MPI Programming...................................................................................................................59

5.1.2 GCI Programming ......................................................................................................................................................................59

5.1.2.1 Program Start Byte for GCI Programming..................................................................................................................59

5.1.2.2 Identification Command for GCI Programming...........................................................................................................59

5.2 Register/RAM Commands.......................................................................................................................................................................59

5.2.1 Register/RAM Command Format ...............................................................................................................................................59

5.2.2 Addressing the Local Registers..................................................................................................................................................59

5.2.3 Addressing the Global Registers................................................................................................................................................60

5.2.4 Addressing the FSK-RAM ..........................................................................................................................................................60

5.2.5 Addressing the Coe-RAM...........................................................................................................................................................61

5.3 Registers Description ..............................................................................................................................................................................63

5.3.1 Registers Overview ....................................................................................................................................................................63

5.3.2 Global Registers List ..................................................................................................................................................................65

5.3.3 Local Registers List ....................................................................................................................................................................73

5.4 Programming Examples ..........................................................................................................................................................................83

5.4.1 Programming Examples for MPI Mode.......................................................................................................................................83

5.4.1.1 Example of Programming the Local Registers via MPI ..............................................................................................83

IDT82V1074相似产品对比

	IDT82V1074	IDT82V1671	IDT82V1671J	IDT82V1074PF
描述	CHIPSET OF RINGING SUBSCRIBER LINE INTERFACE CIRCUIT (RSLIC) & QUAD PROGRAMMABLE PCM CODEC	CHIPSET OF RINGING SUBSCRIBER LINE INTERFACE CIRCUIT (RSLIC) & QUAD PROGRAMMABLE PCM CODEC	CHIPSET OF RINGING SUBSCRIBER LINE INTERFACE CIRCUIT (RSLIC) & QUAD PROGRAMMABLE PCM CODEC	CHIPSET OF RINGING SUBSCRIBER LINE INTERFACE CIRCUIT (RSLIC) & QUAD PROGRAMMABLE PCM CODEC

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