73M1903-IM/F 查看數據表（PDF） - Teridian Semiconductor Corporation

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73M1903-IM/F

Modem Analog Front End

Teridian Semiconductor Corporation 

73M1903 Data Sheet

DS_1903_032

Table of Contents

1 Signal Description ................................................................................................................................. 4

1.1 Serial Interface ............................................................................................................................. 5

2 Control and Status Registers ................................................................................................................ 8

2.1 GPIO .......................................................................................................................................... 10

2.1.1 GPIO Data (GPIO): Address 02h.................................................................................. 10

2.1.2 GPIO Direction (DIR): Address 03h.............................................................................. 10

2.2 Analog I/O .................................................................................................................................. 10

2.2.1 Control Register (CTRL 11): Address 0Bh .................................................................... 11

2.2.2 Control Register (CTRL 12): Address 0Ch .................................................................... 11

2.2.3 Control Register (CTRL 13): Address 0Dh .................................................................... 12

2.2.4 Control Register (CTRL 14): Address 0Eh .................................................................... 12

3 Clock Generation ................................................................................................................................ 13

3.1 Crystal Oscillator and Pre-scaler NCO ...................................................................................... 13

3.1.1 Control Register (CTRL 8): Address 08h....................................................................... 13

3.1.2 Control Register (CTRL 9): Address 09h....................................................................... 13

3.1.3 Control Register (CTRL 10): Address 0Ah .................................................................... 13

4 Modem Receiver ................................................................................................................................. 18

5 Modem Transmitter ............................................................................................................................. 21

5.1 Transmit Levels.......................................................................................................................... 22

5.2 Transmit Power - dBm ............................................................................................................... 23

5.3 Control Register (CTRL1): Address 00h................................................................................... 23

5.4 Control Register (CTRL2): Address 01h................................................................................... 24

5.5 Revision Register: Address 06h ................................................................................................ 24

6 Test Modes ......................................................................................................................................... 25

7 Power Saving Modes .......................................................................................................................... 25

8 Electrical Specifications ...................................................................................................................... 26

8.1 Absolute Maximum Ratings ....................................................................................................... 26

8.2 Recommended Operating Conditions........................................................................................ 26

8.3 Digital Specifications.................................................................................................................. 27

8.3.1 DC Characteristics ......................................................................................................... 27

8.3.2 AC Timing ...................................................................................................................... 28

8.4 Analog Specifications................................................................................................................. 29

8.4.1 DC Specifications .......................................................................................................... 29

8.4.2 AC Specifications........................................................................................................... 29

8.5 Performance .............................................................................................................................. 30

8.5.1 Receiver......................................................................................................................... 30

8.5.2 Transmitter..................................................................................................................... 31

9 Pinouts ................................................................................................................................................ 33

9.1 32-Pin QFN Pinout..................................................................................................................... 33

9.2 20-Pin TSSOP Pinout ................................................................................................................ 34

10 Mechanical Specifications................................................................................................................... 35

10.1 32-Pin QFN Mechanical Drawings............................................................................................. 35

10.2 20-Pin TSSOP Mechanical Drawings ........................................................................................ 36

11 Ordering Information ........................................................................................................................... 37

Appendix A – 73M1903 DAA Resistor Calculation Guide .......................................................................... 38

Appendix B – Crystal Oscillator .................................................................................................................. 41

Revision History .......................................................................................................................................... 46

2

Rev. 2.0

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