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HAL880 Datasheet(PDF) 30 Page - Micronas

Part # HAL880
Description  Programmable Linear Hall-Effect Sensor
PDF  34 Pages
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Manufacturer  MICRONAS [Micronas]
Direct Link  http://www.micronas.com
Logo MICRONAS - Micronas

HAL880 Datasheet(HTML) 30 Page - Micronas

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HAL880
DATA SHEET
30
Feb. 23, 2009; DSH000152_001EN
Micronas
5.4. Number Formats
Binary number:
The most significant bit is given as first, the least sig-
nificant bit as last digit.
Example: 101001 represents 41 decimal.
Signed binary number:
The first digit represents the sign of the following
binary number (1 for negative, 0 for positive sign).
Example:
0101001 represents +41 decimal
1101001 represents
−41 decimal
Two’s complementary number:
The first digit of positive numbers is “0”, the rest of the
number is a binary number. Negative numbers start
with “1”. In order to calculate the absolute value of the
number, calculate the complement of the remaining
digits and add “1”.
Example:
0101001 represents +41 decimal
1010111 represents
−41 decimal
5.5. Register Information
CLAMP-LOW
– The register range is from 0 up to 255.
– The register value is calculated by:
CLAMP-HIGH
– The register range is from 0 up to 511.
– The register value is calculated by:
VOQ
– The register range is from
−1024 up to 1023.
– The register value is calculated by:
SENSITIVITY
– The register range is from
−8192 up to 8191.
– The register value is calculated by:
TC
– The TC register range is from 0 up to 1023.
– The register value is calculated by:
MODE
– The register range is from 0 up to 255 and contains
the settings for FILTER and RANGE:
D/A-READOUT
– This register is read only.
– The register range is from 0 up to 16383.
DEACTIVATE
– This register can only be written.
– The register has to be written with 2063 decimal
(80F hexadecimal) for the deactivation.
– The sensor can be reset with an Activate pulse on
the output pin or by switching off and on the supply
voltage.
CLAMP-LOW
LowClampingVoltage
2
×
V
DD
--------------------------------------------------------------
255
×
=
CLAMP-HIGH
HighClampingVoltage
V
DD
------------------------------------------------------
511
×
=
VOQ
V
OQ
V
DD
-----------
1024
×
=
SENSITIVITY
Sensitivity
2048
×
=
TC
GROUP
256
TCValue
8
TCSQValue
+
×
+
×
=
MODE
OUTPUTMODE
32
BITRATE
16
FILTER
8
RANGE
2
EnableProgGPRegisters
+
×
+
×
+
×
+
×
=



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