ia3222 integration, ia3222 Datasheet - Page 2

• Manufacturer Part Number: ia3222
• Description: Ia3222/ia3223 Ez Daa? Chipset With Analog Interface
• Manufacturer: integration

IA3222/IA3223
TABLE OF CONTENTS
FUNCTIONAL BLOCK DIAGRAM................................................................................................................................................1
TABLE OF CONTENTS...............................................................................................................................................................2
TABLE OF FIGURES ..................................................................................................................................................................4
OVERVIEW..................................................................................................................................................................................5
Analog Interface ...........................................................................................................................................................................5
Isolation Barrier ............................................................................................................................................................................5
International Compliance..............................................................................................................................................................5
Serial Interface .............................................................................................................................................................................5
International Programming Sequence ..........................................................................................................................................5
Hook control .................................................................................................................................................................................5
Line Overload Protection..............................................................................................................................................................5
DC Termination (Voltage Drop vs. Loop Current) ........................................................................................................................5
AC Termination (Line Impedance Matching) ................................................................................................................................6
DTMF Dialing ...............................................................................................................................................................................6
Pulse Dialing ................................................................................................................................................................................6
Caller ID .......................................................................................................................................................................................6
Power-Down Mode.......................................................................................................................................................................6
PACKAGE PIN DEFINITIONS.....................................................................................................................................................7
IA3223 System Side (QSOP-16) ..................................................................................................................................................7
IA3223A System Side (QSOP-20) ...............................................................................................................................................8
IA3222A Line Side (SOIC-8) ........................................................................................................................................................9
IA3222B Line Side (MSOP-10) ....................................................................................................................................................9
ELECTRICAL SPECIFICATIONS..............................................................................................................................................10
Absolute Maximum Ratings........................................................................................................................................................10
Recommended Operating Conditions ........................................................................................................................................10
DC Characteristics .....................................................................................................................................................................11
AC Characteristics......................................................................................................................................................................11
Off-Hook Receiver Performance ................................................................................................................................................12
On-Hook Receiver (Caller ID) Performance at 48V
................................................................................................................12
DC
Transmitter Performance............................................................................................................................................................13
Line-Side Characteristics ...........................................................................................................................................................14
TYPICAL PERFORMANCE GRAPHS.......................................................................................................................................15
REGISTERS ..............................................................................................................................................................................19
Register Map..............................................................................................................................................................................19
Control Register .........................................................................................................................................................................19
Line-Side Programming Registers .............................................................................................................................................19
Threshold Register .....................................................................................................................................................................20
Line Status Register (Read Only)...............................................................................................................................................20
Divider Register..........................................................................................................................................................................21
APPLICATIONS ........................................................................................................................................................................22
Application Schematic ................................................................................................................................................................22
Bill of Materials ...........................................................................................................................................................................23
Application Schematic (Legacy TBR21 Current-Limit Support)..................................................................................................24
Bill of Materials (Legacy TBR21 Current-Limit Support).............................................................................................................25
Component Discussion ..............................................................................................................................................................26
Sample Layout ...........................................................................................................................................................................27
Layout Guidelines ......................................................................................................................................................................27
Interfacing the IA3223 ................................................................................................................................................................28
Interfacing Examples..................................................................................................................................................................29
LINE MONITORING...................................................................................................................................................................30
Theory of Operation—On-Hook Line Status...............................................................................................................................30
Ringing .......................................................................................................................................................................................30
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