qt1103 Quantum Research Group, qt1103 Datasheet - Page 7

• Manufacturer Part Number: qt1103
• Description: Qtouch? 10-key Sensor Ic
• Manufacturer: Quantum Research Group

Table 1.6
AKS Resistor Options
Table 1.7
Functions in Simplified
Mode
Suggested regulator manufacturers:
Re Figures 1.1 and 1.2 check the following sections for the variable component values:
Lq
KEY 4
KEY 6
KEY 8
•
•
•
•
•
•
•
KEY 3
KEY 5
KEY 7
KEY 9
Toko (XC6215 series)
Seiko (S817 series)
BCDSemi (AP2121 series)
Section 3.3, page 12: Cs capacitors (C
Section 3.4, page 12: Sample resistors (R
Section 3.5, page 12: Voltage levels
Section 3.2, page 12: Css capacitor
DETECT OUT
RESET IN
Vunreg
LP IN
Figure 1.2 Connection Diagram - Simplified Mode (32-QFN Package)
R
R
SYNC/LP pin
Max on-duration delay
Detect Pin
R
R
R
R
R
SNS4
SNS8
SNS3
Keep these parts
SNS5
SNS7
SNS9
SNS6
close to the IC
Voltage Reg
AKS_0
Vdd
Vss
C
C
C
C
C
C
C
S4
S8
S3
S6
S5
S9
S7
S
SMR
)
1M
SNS
AKS MODE
)
12
13
14
15
16
17
18
19
20
25
26
27
28
21
On, global
*100nF
23
24
2
SYNC/LP
/RST
DETECT
SNS3
SNS3K
SNS4
SNS4K
SNS5
SNS5K
SNS6
SNS6K
SNS7
SNS7K
SNS8
SNS8K
SNS9
SNS9K
Off
VDD
7
110ms LP function; sync not available
60 seconds
Push-pull, active high
QT1103
32-QFN
22
VSS
3
VDD
*Note: One bypass capacitor to be tightly wired between
Vdd and Vss. Follow regulator manufacturer’s
recommendations for input and output capacitors.
/CHANGE
FAST-DETECT
SNS2K
SNS1K
SNS0K
SNS2
SNS0
SNS1
OSC
N.C.
N.C.
Enabled
SS
RX
1W
Off
10
8
4
9
7
6
1
32
29
11
31
30
5
C
C
C
S1
S2
S0
100K
100K
100K
Keep these parts
Rb1
Rb2
close to the IC
1M
VDD
R
R
R
SNS2
SNS1
SNS0
Css
Vdd
Vdd
Vdd
V
AKS_0
DD
/
V
QT1103_3R0.03_0607
SS
Recommended Rb1, Rb2 Values
2.8 ~ 2.99V
3.0 ~ 3.59V
Vdd Range
Vdd Range
2.8 ~ 2.99V
3.0 ~ 3.59V
With Spread-Spectrum
3.6 ~ 5V
No Spread-Spectrum
3.6 ~ 5V
2W DATA
DATA
/CHANGE
dni = do not install
12K
12K
15K
Rb1
Rb1
15K
18K
20K
KEY 0
KEY 1
KEY 2
Rb2
27K
22K
27K
Rb2
dni
dni
dni