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FDC1004DSCR View Datasheet(PDF) - Texas Instruments

Part NameDescriptionManufacturer
FDC1004DSCR 4-Channel Capacitance-to-Digital Converter for Capacitive Sensing Solutions TI
Texas Instruments TI
FDC1004DSCR Datasheet PDF : 33 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
FDC1004
SNOSCY5B – AUGUST 2014 – REVISED APRIL 2015
6 Pin Configuration and Functions
WSON (DSC)
10 Pins
TOP
SHLD1 1
CIN1 2
CIN2 3
CIN3 4
CIN4 5
DAP
10 SDA
9 SCL
8 VDD
7 GND
6 SHLD2
www.ti.com
SHLD1
CIN1
CIN2
CIN3
CIN4
VSSOP (DGS)
10 Pins
TOP
1
10
2
9
3
8
4
7
5
6
SDA
SCL
VDD
GND
SHLD2
NAME
SHLD1
CIN1
CIN2
CIN3
CIN4
SHLD2
GND
VDD
SCL
SDA
DAP (2)
PIN
NO.
1
2
3
4
5
6
7
8
9
10
-
TYPE (1)
A
A
A
A
A
A
G
P
I
I/O
N/A
Pin Functions
DESCRIPTION
Capacitive Input Active AC Shielding.
Capacitive Input. The measured capacitance is connected between the CIN1 pin and GND. If
not used, this pin should be left as an open circuit.
Capacitive Input. The measured capacitance is connected between the CIN2 pin and GND. If
not used, this pin should be left as an open circuit.
Capacitive Input. The measured capacitance is connected between the CIN3 pin and GND. If
not used, this pin should be left as an open circuit.
Capacitive Input. The measured capacitance is connected between the CIN4 pin and GND. If
not used, this pin should be left as an open circuit.
Capacitive Input Active AC Shielding.
Ground
Power Supply Voltage. This pin should be decoupled to GND, using a low impedance
capacitor, for example in combination with a 1-μF tantalum and a 0.1-μF multilayer ceramic.
Serial Interface Clock Input. Connects to the master clock line. Requires pull-up resistor if not
already provided elsewhere in the system.
Serial Interface Bidirectional Data. Connects to the master data line. Requires a pull-up
resistor if not provided elsewhere in the system.
Connect to GND
(1) P=Power, G=Ground, I=Input, O=Output, A=Analog, I/O=Bi-Directional Input/Output
(2) There is an internal electrical connection between the exposed Die Attach Pad (DAP) and the GND pin of the device. Although the DAP
can be left floating, for best performance the DAP should be connected to the same potential as the device's GND pin. Do not use the
DAP as the primary ground for the device. The device GND pin must always be connected to ground.
4
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