Sundance SMT399-160 - Manual (Page 3)

Table of Contents
1 Introduction............................................................................................... 6
2 Related Documents .................................................................................... 7
3 Examples of application. ............................................................................ 8
4 Functional Description............................................................................... 9
4.1 Block Diagram ................................................................................................................9
4.2 Module Description ........................................................................................................9
4.3 SMT399-160 characteristics. .......................................................................................10
4.4 Power Supply structure. ...............................................................................................10
4.5 On-board crystal. ...........................................................................................................11
4.6 Output Variable Gain Amplifier....................................................................................11
4.7 Daughter sub-module interface. ...................................................................................11
4.8 Cascading modules .......................................................................................................11
4.9 Dual-tone Mode. ........................................................................................................... 12
4.10 External Trigger............................................................................................................ 12
4.11 LEDs.............................................................................................................................. 13
5 Control Register Settings...........................................................................13
5.1 Control Packet Structure .............................................................................................. 13
5.2 Reading and Writing Registers .................................................................................... 14
5.3 Memory Map................................................................................................................. 14
5.4 Register Descriptions ................................................................................................... 16
5.4.1 Reset and Update Register – 0x0............................................................................ 16
5.4.2 Profile Register – 0x1. .............................................................................................18
5.4.3 VGA0 Register – 0x2. ..............................................................................................18
5.4.4 VGA1 Register – 0x3................................................................................................ 19
5.4.5 VGA2 Register – 0x4 ............................................................................................... 19
5.4.6 VGA3 Register – 0x5. .............................................................................................. 19
5.4.7 DDS0 Register – 0x6 – Control Function Register............................................... 20
5.4.8 DDS0 Register – 0x7 – Control Function Register. ...............................................22
5.4.9 DDS0 Register – 0x8 – Control Function Register................................................23
5.4.10 DDS0 Register – 0x9 – Amplitude Scale Factor. ...................................................25
5.4.11 DDS0 Register – 0xA – Amplitude Ramp Rate......................................................25
5.4.12 DDS0 Register – 0xB – Frequency Tuning Word 0...............................................25
5.4.13 DDS0 Register – 0xC – Frequency Tuning Word 0...............................................26
5.4.14 DDS0 Register – 0xD – Phase Offset Word. ..........................................................26
5.4.15 DDS0 Register – 0xE – Frequency Tuning Word 1. ..............................................26
5.4.16 DDS0 Register – 0xF – Frequency Tuning Word 1................................................27
User Manual SMT399-160 Page 3 of 39 Last Edited: 24/05/2007 17:12:00