HMC5843-TR Honeywell Microelectronics & Precision Sensors, HMC5843-TR Datasheet - Page 13

• Manufacturer Part Number: HMC5843-TR
• Description: SENSOR MAGNETIC 3 AXIS 20-LCC
• Manufacturer: Honeywell Microelectronics & Precision Sensors
• Series: HMCr
• Type: Compass - Three Axisr

Specifications of HMC5843-TR

• Sensing Range: ±4g
• Voltage - Supply: 2.5 V ~ 3.3 V
• Current - Supply: 80µA
• Output Type: Differential Voltage
• Features: Compass - Three Axis
• Operating Temperature: -30°C ~ 80°C
• Package / Case: 20-LCC
• Pin Count: 20
• Screening Level: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output (max): -
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 342-1071-2; HMC5843

HMC5843
Configuration Register B
The configuration register B for setting the device gain. 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.
The table below shows nominal gain settings.
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CRB7
GN2 (0)
Location
CRB7 to CRB5
CRB4 to CRB0
GN2
0
0
0
0
1
1
1
1
GN1
0
0
1
1
0
0
1
1
CRB6
GN1 (0)
GN0
0
1
0
1
0
1
0
1
Name
GN2 to GN0
0
Table 9: Configuration Register B Bit Designations
CRB5
GN0 (1)
Sensor Input Field
Range:
±0.7Ga
±1.0Ga
±1.5Ga
±2.0Ga
±3.8Ga
±4.5Ga
±6.5Ga
(Not Recommended)
±3.2Ga
Table 8: Configuration B Register
Table 10: Gain Settings
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.
CRB4
(0)
CRB3
(0)
1300 (default)
(counts/
Gauss)
Gain
1620
970
780
530
460
390
280
CRB2
(0)
CRB1
(0)
Output Range
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
0xF800–0x07FF
(-2048–2047 )
CRB0
(0)
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