KMZ10C,112 NXP Semiconductors, KMZ10C,112 Datasheet - Page 32

• Manufacturer Part Number: KMZ10C,112
• Description: IC MAGNETIC FIELD SENSOR SOT195
• Manufacturer: NXP Semiconductors
• Type: Special Purposer

Specifications of KMZ10C,112

• Sensing Range: 2mV/V
• Voltage - Supply: 5 V ~ 10 V
• Output Type: Analog
• Operating Temperature: -40°C ~ 150°C
• Package / Case: SOT-195
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (min): 5 V
• Supply Voltage (max): 10 V
• Operating Temperature (min): -40C
• Operating Supply Voltage (typ): 5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Current - Output (max): -
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 933698480112; KMZ10C T/R; KMZ10C T/R

Philips Semiconductors
E
The Earth’s geomagnetic field has always caused
problems for TV and monitor manufacturers, as it
influences the trajectory of electrons in a CRT tube
producing a horizontal tilt in the geometry and
convergence error shifts. With the introduction of wide
screen picture tubes, this problem has become
unacceptable, especially with geometric test patterns and
16:9 aspect ratios. With the continuing goal of improving
picture quality and allowing for varying magnetic fields in
every part of the world, a compensation circuit was
required to reduce this effect.
A simple one-dimensional solution is to wrap a DC-current
carrying coil around the neck of the CRT to generate a
magnetic field opposite to the Earth’s field, cancelling the
twist in the electrons path and reducing by approximately
50% the number of convergence errors.
1998 Jun 12
ARTH GEOMAGNETIC FIELD COMPENSATION IN
Magnetic field sensors
handbook, halfpage
CRT
Fig.36 Typical test-diagram.
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V oy /V
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This coil also has the additional advantage of
compensating for any other extraneous electromagnetic
field sources emanating from the TV such as the
loudspeakers. By including a magnetoresistive sensor to
detect the Earth field, the output from the sensor can be
used to drive the compensation field, making adjustment
automatic.
Although residual picture twist and North/South trapezoid
errors can still be seen, a simple DC-shift in the
compensation current will eliminate the picture twist and
the addition of a vertical sawtooth (ramp) current, derived
from the vertical deflection, will remove the N/S trapezoid.
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V ox /V
General