QT1103-ISG View Datasheet(PDF) - Quantum Research Group
Part Name
Description
Manufacturer
QT1103-ISG Datasheet PDF : 22 Pages
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KEY 3
KEY 4
KEY 5
KEY 6
KEY 7
KEY 8
KEY 9
Figure 1.1 Connection Diagram - Full Options (32-QFN Package)
Vunreg
Voltage Reg
VDD
*100nF
*Note: One bypass capacitor to be tightly wired between
Vdd and Vss. Follow regulator manufacturer’s
recommendations for input and output capacitors.
Keep these parts
close to the IC
MOD_1
VDD / VSS 1M
RSNS3
12
SNS3
CS3 13
SNS3K
3
VDD
SNS2K 11
SNS2 10
RSNS4
14
SNS4
CS4 15
SNS4K
SNS1K 9
SNS1 8
OUT_D
VDD / VSS 1M
RSNS5
SL_0
VDD / VSS 1M
RSNS6
16
SNS5
CS5 17 SNS5K
SNS0K 7
SNS0 6
QT1103
18
32-QFN
SNS6
CS6 19
SNS6K
SL_1
VDD / VSS 1M
RSNS7
20
CS7
SNS7
21 SNS7K
OSC 4
SS 1
RSNS8
RSNS9
25 SNS8
CS8 26 SNS8K
27
CS9
SNS9
28 SNS9K
RX 32
RESET IN
2 /RST
SYNC or LP
23
Pull-up not required for push-pull mode
SYNC/LP
See Detect pin mode table 100K
Vdd
DETECT OUT
24 DETECT
1W 31
VSS
/CHANGE 30
N.C. 29
N.C. 5
22
Keep these parts
close to the IC
CS2
RSNS2
MOD_0
1M
VDD / VSS
KEY 2
CS1
RSNS1
AKS_1
1M
VDD / VSS
KEY 1
CS0
RSNS0
AKS_0
1M
VDD / VSS
KEY 0
VDD
Rb1
Rb2
Recommended Rb1, Rb2 Value
With Spread-Spectrum
Vdd Range Rb1 Rb2
2.8 ~ 2.99V 12K 27K
3.0 ~ 3.59V 12K 22K
3.6 ~ 5V 15K 27K
Css
100K
Vdd
100K
Vdd
100K
Vdd
No Spread-Spectrum
Vdd Range Rb1 Rb2
2.8 ~ 2.99V 15K dni
3.0 ~ 3.59V 18K dni
3.6 ~ 5V 20K dni
dni = do not install
2W DATA
DATA
/CHANGE
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
MOD_1
Vss
Vss
Vdd
Vdd
OUT_D
Vss
Vdd
SL_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_0
Vss
Vdd
Vss
Vdd
MAX ON-DURATION MODE
10 seconds to recalibrate
60 seconds to recalibrate
Infinite (disabled)
(reserved)
DETECT PIN MODE
Open drain, active low
Push-pull, active high
SL_0
Vss
Vdd
Vss
Vdd
SYNC/LP PIN MODE
Sync
LP mode: 70ms response time
LP mode: 110ms response time
LP mode: 190ms response time
Lq
6
QT1103_3R0.03_0607
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