qt60161b Quantum Research Group, qt60161b Datasheet - Page 34

• Manufacturer Part Number: qt60161b
• Description: 16 Key Qmatrix Keypanel Sensor Ic
• Manufacturer: Quantum Research Group

8 Index
A
adc, 8
adjacent key suppression, 6, 7, 12, 24, 28, 32
alert output
application assistance, 4
B
block diagram, 5
boundary limits, 19, 23, 29
burst length, 4, 7, 8, 9, 17, 21, 28, 30
burst spacing, 8, 9, 14, 22, 28, 30, 32
burst timing, 15, 30
C
calibration
circuit model, 7
cs, 5, 8, 9
D
delta signals, 19, 27
detection integrator, 5, 6, 8, 18
direction commands, 17
drdy’, 12
drift compensation, 5, 6, 11, 17, 21, 22, 23
dwell, 7, 9
E
echo, 12, 13, 15, 21, 24
eeprom checksum, 18, 24
electrostatic shield, 11
emi, 11, 23
error code, 4, 11, 16, 17, 19, 20, 21, 23
error guardbanding, 23
esd protection, 8, 9, 11
F
field flow, 4, 8
function summary table, 27
G
get command, 17
ground plane, 11
H
hysteresis, 5, 21, 22
lQ
led, 10, 11
recalibration, 5, 6, 7, 9, 10, 17, 19, 21, 23, 24, 29
rfi, 8, 9, 21
©Quantum Research Group Ltd.
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I
intra-burst pulse spacing, 9, 23
K
key design, 4
key numbering convention, 18
key reporting, 20
L
led
lock reference levels, 6, 14, 23, 24
M
master mode, 12, 13
master-slave mode, 4, 12, 13
miso, 12, 13
mosi, 9, 12, 13
N
negative detect integrator, 22
negative detect threshold, 21
negative drift compensation, 22
negative hysteresis, 5
negative recalibration delay, 6, 23
negative reference error band, 23
negative threshold, 5, 7, 8, 21, 22, 23
noise, 11, 12
noise filter, 22. see also emi
O
oscillator, 7, 9, 10, 12, 14, 25
oscilloscope sync, 11, 26
P
pcb layout, 4, 11
positive detect threshold, 21
positive recalibration delay, 6, 7, 23
positive reference error band, 23
positive threshold, 5, 6, 7, 21, 23
power supply, 11
pulse spacing, 9, 23
put command, 17
Q
qmbtn, 4, 10, 11
R
recalibrate keys (command), 24
recalibration
reset, 7, 9, 10, 11, 17, 25, 26
resonator, 7, 9. see also oscillator
return last command, 25
alert output, 10, 11
calibration, 5, 6, 7, 9, 10, 17, 19, 21, 23, 24, 29
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