qt60325 Quantum Research Group, qt60325 Datasheet - Page 40

• Manufacturer Part Number: qt60325
• Description: 32, 48, 64 Key Qmatrix Keypanel Sensor Ics
• Manufacturer: Quantum Research Group

qs3251, 12, 13, 16, 35
qt60325, 9, 29
qt60485, 9, 29
R
r2r ladder
recalibrate keys (command), 28
recalibration, 6, 7, 8, 13, 23, 24, 26, 28, 30
reference level, 4, 6, 7, 8, 25, 26, 27
reference levels, 22
reference window boundary, 8
reset, 4, 7, 8, 9, 13, 14, 15, 20, 21, 28, 29, 30, 35
resonator, 14, 15
response delays, 17, 37
return last command, 28
return part signature, 29
return part version, 29
rf emissions, 5
S
scan sequence
sck, 17, 18, 19
scope, 16, 20, 21
scope commands, 21
sensitivity, 12
serial interface, 16
setup commands, 20, 24
signal gain, 9, 13, 25
signal levels, 4, 22
signal processing, 4, 5
slave mode, 16, 17, 18, 19
sleep mode, 14, 29
sleep_wake, 14, 15
soft reset, 8
spi, 4, 15, 16, 17, 18, 19, 20, 29
lQ
ladder DAC, 5, 7, 9, 14
Matrix scan sequence, 9
© Quantum Research Group Ltd.
40
spi interface, 4
spi noise problems, 16
spi rate, 29
ss’, 17, 18, 19
startup, 13, 14, 15
status commands, 20, 21
subranging
supervisory functions, 20, 28
sync, 14, 15, 16, 18, 22, 29, 30
T
threshold level, 6, 7, 25, 26
timing limitations, 34
tlc2272, 13
U
uart, 16
V
vdd, 15, 16
vee, 15
virtual ground, 4
W
water films, 4, 14, 27
X
x electrode drives, 9
x2ws, 14
Y
y gate drives, 12
yc0..yc7, 12
ys0..ys2, 12
ADC, 4, 5
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QT60xx5 / R1.05