73M1866B/73M1966B Data Sheet
DS_1x66B_001
Table of Contents
1
2
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
3
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
4
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
5
6
7
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
8
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
2
Rev. 1.6
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
