HMC5843-EVAL Honeywell Microelectronics & Precision Sensors, HMC5843-EVAL Datasheet - Page 15

• Manufacturer Part Number: HMC5843-EVAL
• Description: BOARD EVALUATION FOR HMC5843
• Manufacturer: Honeywell Microelectronics & Precision Sensors

Specifications of HMC5843-EVAL

• Sensor Type: Magnetic, Digital Compass
• Sensing Range: ±4g
• Interface: I²C
• Sensitivity: 7 Milli-Gauss
• Voltage - Supply: 2.5 V ~ 3.3 V
• Embedded: No
• Utilized Ic / Part: HMC5843
• Silicon Manufacturer: Honeywell
• Application Sub Type: Magnetic Sensor
• Kit Application Type: Sensing - Magnetic / Compass
• Silicon Core Number: HMC5843
• Sensitivity Range: +/- 10 %
• Sensor Terminals: PCB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 342-1072

HMC5843
Configuration Register B
The configuration register B for setting the device gain and for setting a measurement delay time. CRB0 through CRB7
indicate bit locations, with CRB denoting the bits that are in the configuration register. CRB7 denotes the first bit of the
data stream. The number in parenthesis indicates the default value of that bit.
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MS1
0
0
1
1
CRB7
GN2 (0)
Location
CRB7 to CRB5
CRB4
CRB3 to CRB0
0
1
0
1
MS0
CRB6
GN1 (0)
Mode
Normal measurement configuration (default). In normal measurement
configuration the device follows normal measurement flow. Pins BP and BN
are left floating and high impedance.
Positive bias configuration. In positive bias configuration, a positive current
is forced across the resistive load on pins BP and BN.
Negative bias configuration. In negative bias configuration, a negative
current is forced across the resistive load on pins BP and BN.
This configuration is not used.
Name
GN2 to GN0
0
DL3 to DL0
Table 11: Configuration Register B Bit Designations
CRB5
GN0 (1)
Table 10: Configuration B Register
Table 9: Measurement Modes
Description
Gain Configuration Bits. These bits configure the gain for
the device. The gain configuration is common for all
channels.
This bit must be cleared for correct operation.
Delay Configuration Bits. These bits set the delay time
after which pin SVDD and ADC are high before analog to
digital conversion begins.
CRB4
(0)
CRB3
DL3 (0)
CRB2
DL2 (0)
CRB1
DL1 (0)
CRB0
DL0 (0)
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