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RM3000 & RM2000 Sensor Suite User Manual r08 Page 3 of 41

List of Figures

Figure 3-1: Sample Rate vs. Resolution – Standard Mode ...................................................... 9

Figure 3-2: Gain vs. Cycle Counts – Standard & Legacy Modes ........................................... 10

Figure 3-3: Single-Axis Sample Rate vs. Cycle Counts – Standard & Legacy Modes .......... 10

Figure 3-4: Gain vs. Cycle Counts – Standard Mode ............................................................. 11

Figure 3-5: Single-Axis Sample Rate vs. Cycle Counts – Standard Mode ............................ 11

Figure 3-6: Current Consumption vs. Cycle Counts – Standard Mode .................................. 12

Figure 3-7: Sen-XY Sensor Dimensions ................................................................................ 13

Figure 3-8: Sen-XY Solder Pad Layout .................................................................................. 13

Figure 3-9: Sen-XY Tape and Reel Dimensions .................................................................... 14

Figure 3-10: Sen-Z Sensor Dimensions ................................................................................. 14

Figure 3-11: Sen-Z Solder Pad Layout ................................................................................... 15

Figure 3-12: Sen-Z Tape and Reel Dimensions ..................................................................... 15

Figure 3-13: Sen-Z Shield Sensor Dimensions ...................................................................... 16

Figure 3-14: Sen-Z Shield Solder Pad Layout ........................................................................ 16

Figure 3-15: Sen-Z Shield Tape and Reel Dimensions .......................................................... 17

Figure 3-16: 3D MagIC Mechanical Drawing ......................................................................... 17

Figure 3-17: 3D MagIC Tape Dimensions .............................................................................. 18

Figure 3-20: Recommended Solder Reflow Profile ................................................................ 19

Figure 4-1: RM3000 reference schematic – Standard Mode ................................................. 20

Figure 4-2: LR Oscillator Circuit Biasing Diagram .................................................................. 21

Figure 4-3: RM3000 North-East-Down (NED) Sensor Layout ............................................... 22

Figure 4-4: SPI Timing Diagram ............................................................................................. 27

Figure 5-1: SPI Activity Sequence Diagram for SAM Operation ............................................ 31

Figure 5-2: SPI Activity Sequence Diagram for MAM Operation ........................................... 33

Figure 6-1: SPI Activity Sequence Diagram for Legacy Operation ........................................ 37

List of Tables

Table 3-1: Geomagnetic Sensor Suite Performance................................................................ 6

Table 3-2: Sen-XY and Sen-Z Absolute Maximum Ratings ..................................................... 7

Table 3-3: Sen-XY and Sen-Z Characteristics ......................................................................... 7

Table 3-4: 3D MagIC Absolute Maximum Ratings ................................................................... 8

Table 3-5: 3D MagIC Recommended Operating Conditions .................................................... 8

Table 3-6: Recommended Solder Processing Parameters .................................................... 19

Table 4-1: 3D MagIC Pin Assignments .................................................................................. 24

Table 4-2: SPI Timing Specifications ..................................................................................... 28

Table 5-1: Cycle Count Register Commands ......................................................................... 30

Table 5-2: SAM Axis Select Bits ............................................................................................. 32

Table 5-3: MAM Axes Select Bits ........................................................................................... 34

Table 6-1: Legacy Period Select Bits ..................................................................................... 38

Table 6-2: Legacy Axis Select Bits ......................................................................................... 38

Table 6-3: Clock Divide Bits ................................................................................................... 40

Table 6-4: Enhanced Legacy Mode with CD = 1 .................................................................... 41

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