Sensors

Freescale Semiconductor

3

MMA690xQ

Figure 1-2 DSP Block Diagram

1.4

PIN FUNCTIONS

The pinout is illustrated in Figure 1-3. Pin functions are described in the following paragraphs. When self-test is active, the

output becomes more positive in both axes, if ST1 is cleared or more negative in both axes if ST1 is set, as described in

Section 2.1.3.

Figure 1-3 Pinout for MMA690xQ

OFFSET,

IN 1

LOW-PASS

FILTER

GAIN,

LINEARITY

ADJUST

OUTPUT

SCALING

DSP

CONTROL

DIGITAL

OUT

IN 0

TEMP

CONTROL

IN

STATUS

OUT

CAP/HOLD

TOP VIEW

16-PIN QFN PACKAGE

1

2

3

4

5

6

7

8

12

11

10

9

16 15 14 13

PCM_Y

Response to static orientation within 1 g field.

TO CENTER OF

GRAVITATIONAL FIELD

X: 0 g

X: -1 g

Y: -1 g

Y: 0 g

X: 0 g

X: +1 g

Y: +1 g

Y: 0 g