73M1822/73M1922 Data Sheet
DS_1x22_001
Table of Contents
1
2
Introduction ......................................................................................................................................6
Pinout................................................................................................................................................8
2.1
2.2
2.3
2.4
2.5
2.6
73M1902 20-Pin TSSOP Pinout............................................................................................... 8
73M1912 20-Pin TSSOP Pinout............................................................................................. 10
73M1902 32-Pin QFN Pinout................................................................................................. 11
73M1912 32-Pin QFN Pinout................................................................................................. 13
73M1822 Pinout..................................................................................................................... 15
Exposed Bottom Pad on 73M1x66B QFN Packages .............................................................. 16
3
Electrical Characteristics and Specifications................................................................................ 17
3.1
3.2
Isolation Barrier Characteristics.............................................................................................. 17
Electrical Specifications ......................................................................................................... 17
3.2.1 Absolute Maximum Ratings.......................................................................................... 17
3.2.2 Recommended Operating Conditions ........................................................................... 17
3.2.3 DC Characteristics........................................................................................................ 18
Serial Interface Timing Specification ...................................................................................... 19
Analog Specifications............................................................................................................. 19
3.4.1 DC Specifications......................................................................................................... 19
3.4.2 Call Progress Monitor ................................................................................................... 20
73M1x22 Line-Side Electrical Specifications (73M1912)......................................................... 22
Reference and Regulation ..................................................................................................... 22
AC Signal Levels ................................................................................................................... 22
DC Transfer Characteristics................................................................................................... 23
Transmit Path ........................................................................................................................24
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10 Receive Path .........................................................................................................................25
3.11 Transmit Hybrid Cancellation ................................................................................................. 26
3.12 Receive Notch Filter............................................................................................................... 26
3.13 Detectors...............................................................................................................................27
3.13.1 Over-Voltage Detector................................................................................................. 27
3.13.2 Over-Current Detector................................................................................................. 27
3.13.3 Under-Voltage Detector............................................................................................... 27
3.13.4 Over-Load Detector..................................................................................................... 27
4
Applications Information................................................................................................................ 28
4.1
4.2
4.3
4.4
Example Schematic of the 73M1922 and 73M1822................................................................ 28
Bill of Materials ...................................................................................................................... 30
Over-Voltage and EMI Protection........................................................................................... 31
Isolation Barrier Pulse Transformer........................................................................................ 32
5
6
Control and Status Registers......................................................................................................... 33
5.1 Line-Side Device Register Polling .......................................................................................... 36
Hardware Control Functions.......................................................................................................... 37
6.1
6.2
6.3
6.4
6.5
6.6
Device Revision..................................................................................................................... 37
Interrupt Control..................................................................................................................... 37
Power Management............................................................................................................... 38
Device Clock Management .................................................................................................... 38
GPIO Registers...................................................................................................................... 39
Call Progress Monitor ............................................................................................................ 40
7
Clock and Sample Rate Management............................................................................................ 41
7.1
7.2
7.3
7.4
7.5
Clock Generation with HIC (73M1902)................................................................................... 41
Crystal Oscillator.................................................................................................................... 41
PLL Prescaler........................................................................................................................42
PLL Circuit.............................................................................................................................42
PLL System Timing Control.................................................................................................... 45
8
MAFE Serial Interface..................................................................................................................... 46
8.1
8.2
8.3
Data and Control Frame Formats........................................................................................... 46
Data and Control Frame Timing ............................................................................................. 47
Serial Clock Operation ........................................................................................................... 48
2
Rev 1.6
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
