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参数资料
| 型号： | DEMO1985MC34940E |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | KIT DEMO FOR MC34940E FAMILY |
| 标准包装： | 1 |
| 传感器类型： | 触摸，电容式 |
| 接口： | 模拟 |
| 电源电压： | 9 V ~ 18 V |
| 嵌入式： | 否 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MC34940 |
| 相关产品： | MC34940EGR2-ND - IC IMAGING DEVICE ELEC 24-SOICW MC34940EG-ND - IC IMAGING DEVICE ELECT 24-SOICW |
Sensors
4
Freescale Semiconductor
MC34940
Table 2. Static Electrical Characteristics
Characteristics noted under conditions 5.5 V ≤ VSUP ≤ 18 V, 0°C ≤ TA ≤ 90°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
SUPPLY (VPWR)
Supply Voltage
VPWR
9.0
12
18
V
IDD (VPWR = 14 V)
(Quiescent supply current measured over temperature. Assumes
that no external devices connected to internal voltage regulators)
IDD
6.0
7.0
8.0
mA
ELECTRODE SIGNALS (E1–E7)
Total Variance Between Electrode Measurements (5)
All CLOAD = 15 pF
ELVVAR
–
3.0
%
Electrode Maximum Harmonic Level Below Fundamental (5)
5.0 pF ≤ CLOAD ≤ 150 pF
ELHARM
–
-20
–
dB
Electrode Transmit Output Range
5.0 pF ≤ CLOAD ≤ 150 pF
ELTXV
1.0
–
8.0
V
Receive Input Voltage Range
RXV
0
–
9.0
V
Grounding Switch on Voltage (6)
ISW = 1.0 mA
SWVON
–
5.0
V
LOGIC I/O (C, B, A)
CMOS Logic Input Low Threshold
VTHL
0.3
–
VCC
Logic Input High Threshold
VTHH
–
0.7
VCC
Voltage Hysteresis
VHYS
–
0.06
–
VCC
Input Current
VIN = VCC
VIN = 0 V
IIN
10
-5.0
–
50
5.0
A
SIGNAL DETECTOR (LPCAP)
Detector Output Resistance
DETRO
–
50
–
k
LPCAP to LEVEL Gain
AREC
3.6
4.0
4.4
AV
LPCAP to LEVEL Offset
VRECOFF
-3.3
-3.0
-2.7
V
Notes
5.
Verified by design and characterization. Not tested in production.
6.
Current into grounded terminal under test = 1.0 mA.
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