73M1866B-IMRSLASHF datasheet(2/88 Pages) TERIDIAN

2 / 88 page

73M1866B/73M1966B Data Sheet

DS_1x66B_001

Rev. 1.6

Table of Contents

Introduction ................................................................................................................................... 6

Pinout ............................................................................................................................................. 8

2.1

73M1906B 20-Pin TSSOP Pinout............................................................................................ 8

2.2

73M1916 20-Pin TSSOP Pinout .............................................................................................. 9

2.3

73M1906B 32-Pin QFN Pinout .............................................................................................. 10

2.4

73M1916 32-Pin QFN Pinout ................................................................................................ 12

2.5

73M1866B Pinout ................................................................................................................. 14

2.6

Requisite Use of Exposed Bottom Pad on 73M1866B and 73M1966B QFN Packages .......... 15

Electrical Characteristics and Specifications............................................................................. 16

3.1

Isolation Barrier Characteristics ............................................................................................. 16

3.2

Electrical Specifications......................................................................................................... 16

3.2.1 Absolute Maximum Ratings ....................................................................................... 16

3.2.2 Recommended Operating Conditions ........................................................................ 16

3.2.3 DC Characteristics..................................................................................................... 17

3.3

Interface Timing Specification................................................................................................ 18

3.3.1 SPI Interface ............................................................................................................. 18

3.3.2 PCM Highway Interface ............................................................................................. 19

3.4

Analog Specifications ............................................................................................................ 20

3.4.1 DC Specifications ...................................................................................................... 20

3.4.2 Call Progress Monitor ................................................................................................ 21

3.5

73M1x66B Line-Side Electrical Specifications (73M1916)...................................................... 22

3.6

Reference and Regulation..................................................................................................... 23

3.7

DC Transfer Characteristics .................................................................................................. 23

3.8

Transmit Path ....................................................................................................................... 24

3.9

Receive Path ........................................................................................................................ 25

3.10 Transmit Hybrid Cancellation ................................................................................................ 26

3.11 Receive Notch Filter.............................................................................................................. 26

3.12 Detectors .............................................................................................................................. 27

3.12.1 Over-Voltage Detector ............................................................................................... 27

3.12.2 Over-Current Detector ............................................................................................... 27

3.12.3 Under-Voltage Detector ............................................................................................. 27

3.12.4 Over-Load Detector ................................................................................................... 27

Applications Information............................................................................................................. 28

4.1

Example Schematic of the 73M1966B and 73M1866B .......................................................... 28

4.2

Bill of Materials...................................................................................................................... 30

4.3

Over-Voltage and EMI Protection .......................................................................................... 31

4.4

Isolation Barrier Pulse Transformer ....................................................................................... 32

SPI Interface................................................................................................................................. 33

Control and Status Registers...................................................................................................... 37

Hardware Control Functions....................................................................................................... 41

7.1

Device Revision .................................................................................................................... 41

7.2

Interrupt Control .................................................................................................................... 41

7.3

Power Management .............................................................................................................. 42

7.4

Device Clock Management.................................................................................................... 42

7.5

GPIO Registers..................................................................................................................... 43

7.6

Call Progress Monitor............................................................................................................ 44

7.7

16 kHz Operation of Call Progress Monitor ............................................................................ 44

7.8

Device Reset ........................................................................................................................ 44

PCM Highway Interface and Signal Processing ......................................................................... 45

8.1

PCM Highway Interface Timing ............................................................................................. 45

8.2

PCM Clock Frequencies........................................................................................................ 47

8.3

Master Mode......................................................................................................................... 47

8.4

A-

law / μ-law Compander......................................................................................................47

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