Sensors

4

Freescale Semiconductor, Inc.

1.1

Application Circuit

Device power is supplied through the VDD line. Power supply decoupling capacitors (100 nF ceramic) should be placed as near

as possible to pins 1 and 2 of the device. Additionally a 1

μF (or larger) capacitor should be used for bulk decoupling of the VDD

supply rail as shown in Figure 4. VDDIO supplies power for the digital I/O pins SCL, SDA, and INT1.

The control signals SCL and SDA, are not tolerant of voltages more than VDDIO + 0.3 volts. If VDDIO is removed, the control

signals SCL and SDA will clamp any logic signals through their internal ESD protection diodes.

Figure 4. Electrical Connection

Table 1. Pin Descriptions

Pin

Name

Function

1

Cap-A

Bypass Cap for Internal Regulator

2

VDD

Power Supply, 1.95V – 3.6V

3

NC

Do not connect.

4

Cap-R

Magnetic Reset Pulse Circuit Capacitor connection

5

GND

GND

6

SDA

7

SCL

8

VDDIO

Digital interface supply, 1.65V - VDD

9

INT1

Interrupt - Active High Output

10

GND

GND

SDA

VDDIO

1

2

3

4

5

10

9

8

7

6

(Top View)

100 nF

1

μF

VDD

100 nF

100 nF

SCL

INT1

4.7K

100 nF

4.7K

Cap-A

VDD

NC

Cap-R

GND

GND

INT1

SDA

VDDIO

SCL

MAG3110