參數(shù)資料
型號: QT113-S
廠商: Electronic Theatre Controls, Inc.
英文描述: CHARGE-TRANSFER TOUCH SENSOR
中文描述: 電荷轉(zhuǎn)移觸摸傳感器
文件頁數(shù): 8/12頁
文件大小: 180K
代理商: QT113-S
4.1 ABSOLUTE MAXIMUM SPECIFICATIONS
Operating temp
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . as designated by suffix
Storage temp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
O
C to +125
O
C
V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to +6.5V
Max continuous pin current, any control or drive pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
Short circuit duration to ground, any pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Short circuit duration to V
DD
, any pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . infinite
Voltage forced onto any pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.6V to (Vdd + 0.6) Volts
4.2 RECOMMENDED OPERATING CONDITIONS
V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +2.5 to 5.5V
Short-term supply ripple+noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5mV
Long-term supply stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100mV
Cs value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10nF to 500nF
Cx value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 100pF
4.3 AC SPECIFICATIONS
Vdd = 3.0, Ta = recommended operating range
, Cs=100nF unless noted
Typ
Min
Description
Parameter
μs
300
Heartbeat pulse width
T
HB
Cx = 10pF; See Figure 4-3
ms
30
Response time
T
R
Cs = 10nF to 500nF; Cx = 0
ms
75
0.5
Burst length
T
BL
Cs = 10nF to 500nF; Cx = 0
ms
80
2.1
Burst spacing interval
T
BS
μs
2
Transfer duration
T
PT
μs
2
Charge duration
T
PC
ms
550
Recalibration time
T
RC
Notes
Units
Max
4.4 SIGNAL PROCESSING
Description
Option pin selected
secs
10, 60, infinite
Post-detection recalibration timer duration
ms/level
100
Negative drift compensation rate
ms/level
1,000
Positive drift compensation rate
samples
3
Consensus filter length
Note 1
%
17
Hysteresis
Option pin selected
counts
6 or 12
Threshold differential
Notes
Units
Max
Typ
Min
Note 1:
Percentage of signal threshold
- 8 -
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