73M1903C
Modem Analog Front End
DATA SHEET
Table of Contents
DESCRIPTION..............................................................................................................................................1
Features ........................................................................................................................................................1
Applications...................................................................................................................................................1
SIGNAL DESCRIPTION ...............................................................................................................................4
SERIAL INTERFACE....................................................................................................................................5
CONTROL REGISTER MAP ......................................................................................................................11
SYSTEM CONTROL REGISTERS.............................................................................................................12
GPIO REGISTERS .....................................................................................................................................13
PLL CONFIGURATION REGISTERS.........................................................................................................14
CLOCK GENERATION...............................................................................................................................17
ANALOG I/O ...............................................................................................................................................20
MODEM TRANSMITTER............................................................................................................................21
MODEM RECEIVER...................................................................................................................................24
TEST MODES.............................................................................................................................................28
POWER SAVING MODES..........................................................................................................................28
ELECTRICAL SPECIFICATIONS...............................................................................................................29
ABSOLUTE MAXIMUM RATINGS..........................................................................................................29
RECOMMENDED OPERATING CONDITIONS......................................................................................29
DIGITAL SPECIFICATIONS .......................................................................................................................30
DC CHARACTERISTICS ........................................................................................................................30
AC TIMING..............................................................................................................................................31
ANALOG SPECIFICATIONS ......................................................................................................................32
DC SPECIFICATIONS ............................................................................................................................32
AC SPECIFICATIONS.............................................................................................................................32
PERFORMANCE.....................................................................................................................................33
PACKAGE OPTIONS..................................................................................................................................35
MECHANICAL DRAWINGS........................................................................................................................36
73M1903C DAA Resistor Calculation Guide...........................................................................................37
APPENDIX B...............................................................................................................................................40
Crystal Oscillator .....................................................................................................................................40
PLL ..........................................................................................................................................................41
Examples of NCO settings ......................................................................................................................42
ORDERING INFORMATION.......................................................................................................................46
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© 2005-2008 TERIDIAN Semiconductor Corporation
Rev 4.3
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
