QT1101 View Datasheet(PDF) - Quantum Research Group
Part Name
Description
Manufacturer
QT1101 Datasheet PDF : 16 Pages
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Figure 1.1 Connection Diagram - Full Options (32-QFN Package)
Vunreg
4.7uF
+2.8 ~ +5V
Voltage Reg
4.7uF
*100nF
VDD
2.2K
RSNS3 4.7nF
CS3
RS3
MOD_1
Vdd / Vss
1M
KEY 3
2.2K
10K
KEY 4
RSNS4 4.7nF
10K
CS4 RS4
2.2K
KEY 5
RSNS5 4.7nF
OUT_D
CS5 RS5 Vdd / Vss
1M
10K
2.2K
RSNS6 4.7nF
CS6
RS6
SL_0
Vdd / Vss
1M
KEY 6
10K
2.2K
RSNS7 4.7nF
CS7 RS7
SL_1
Vdd / Vss
1M
KEY 7
10K
2.2K
KEY 8
RSNS8 4.7nF
10K
CS8 RS8
2.2K
KEY 9
RSNS9 4.7nF
10K
CS9 RS9
SYNC or LP
DETECT OUT
Pullup not required for push-pull mode
See Detect pin mode table below
100K
Vdd
3
2
VDD /RST
12 SNS3
SNS2K 11
13 SNS3K
SNS2 10
SNS4
SNS1K 9
15 SNS4K
SNS1 8
16 SNS5
SNS0K 7
17 SNS5K
SNS0 6
18 SNS6
19 SNS6K
20 SNS7
QT1101
32-QFN
21 SNS7K
25 SNS8
OSC 4
26 SNS8K
27 SNS9
28 SNS9K
SS 1
1M
MOD_0
Vdd / Vss
1M
AKS_1
Vdd / Vss
1M
AKS_0
Vdd / Vss
VDD
Rb1
Rb2
Css
RS2
2.2K
RS1
2.2K
RS0
2.2K
4.7nF
RSNS2
CS2
4.7nF
10K
RSNS1
CS1
4.7nF
10K
RSNS0
CS0
10K
KEY 2
KEY 1
KEY 0
Recommended Rb1, Rb2 Values
With Spread-Spectrum
Vdd Range Rb1 Rb2
2.8 ~ 2.99V 12K 27K
3.0 ~ 3.59V 12K 22K
3.6 ~ 5V 15K 27K
No Spread-Spectrum
Vdd Range Rb1 Rb2
2.8 ~ 2.99V 15K dni
3.0 ~ 3.59V 18K dni
3.6 ~ 5V 20K dni
100nF
No Spread-spectrum:
dni = do not install
Replace Css with 100K resistor
100K
RX 32
100K
Vdd
23
SYNC/LP
1W 31
Vdd
100K
/CHANGE 30
Vdd
2W DATA
DATA
/CHANGE
24 DETECT
N.C. 29
N.C. 5
VSS
22
Table 1.2
AKS / Fast-Detect Options
Table 1.3
Max On-Duration
Table 1.4
Detect Pin Drive
Table 1.5
SYNC/LP Function
AKS_1
Vss
Vss
Vdd
Vdd
AKS_0
Vss
Vdd
Vss
Vdd
AKS MODE
Off
Off
On, in 3 groups
On, global
FAST-DETECT
Off
Enabled
Off
Off
MOD_1
Vss
Vss
Vdd
Vdd
MOD_0
Vss
Vdd
Vss
Vdd
MAX ON-DURATION MODE
10 seconds to recalibrate
60 seconds to recalibrate
Infinite (disabled)
(reserved)
OUT_D
Vss
Vdd
DETECT PIN MODE
Open drain, active low
Push-pull, active high
SL_1
Vss
Vss
Vdd
Vdd
SL_0
Vss
Vdd
Vss
Vdd
SYNC/LP PIN MODE
Sync
LP mode: 120ms response time
LP mode: 200ms response time
LP mode: 360ms response time
Lq
4
QT1101 R4.06/0806
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