EVAL-AD7143-1EBZ Просмотр технического описания (PDF) - Analog Devices

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EVAL-AD7143-1EBZ

Programmable Controller for Capacitance Touch Sensors

Analog Devices 

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

CIN2 1

CIN3 2

CIN4 3

CIN5 4

PIN 1

INDICATOR

AD7143

TOP VIEW

(Not to Scale)

12 SDA

11 VDRIVE

10 GND

9 VCC

AD7143

Figure 3. Pin Configuration

Table 5. Pin Function Descriptions

Pin No. Mnemonic Description

1

CIN2

Capacitance Sensor Input.

2

CIN3

Capacitance Sensor Input.

3

CIN4

Capacitance Sensor Input.

4

CIN5

Capacitance Sensor Input.

5

CIN6

Capacitance Sensor Input.

6

CIN7

Capacitance Sensor Input.

7

CSHIELD

CDC Shield Potential Output. Requires 10 nF capacitor to ground.

8

SRC

CDC Excitation Source Output.

9

VCC

CDC Supply Voltage.

10

GND

Ground Reference Point for All CDC Circuitry. Tie to ground plane.

11

VDRIVE

I2C Serial Interface Operating Voltage

12

SDA

I2C Serial Data Input/Output. SDA requires pull-up resistor.

13

SCLK

Clock Input for Serial Interface. SCLK requires pull-up resistor.

14

INT

General-Purpose Open-Drain Interrupt Output. Programmable polarity; requires pull-up resistor.

15

CIN0

Capacitance Sensor Input.

16

CIN1

Capacitance Sensor Input.

Rev. 0 | Page 7 of 56

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