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 ]
