REV. 0

–2–

ADXL202EB

Table II. ADXL202EB Pinout Description

Pin Reference

Pinout

E

GROUND

B

SELF-TEST INPUT

D

X AXIS DUTY CYCLE OUT

C

Y AXIS DUTY CYCLE OUT

A

+V SUPPLY (3 V dc to

5.25 V dc)

T2 Period

1 ms

124 k

Ω

2 ms

248 k

Ω

5 ms

620 k

Ω

10 ms

1.24 M

Ω

Noise Performance

Bandwidth

RMS Noise

0.01

µF

500 Hz

12.7 mg

0.047

µF

100 Hz

7 mg

0.1

µF

50 Hz

4.2 mg

0.47

µF

10 Hz

2.3 mg

Table I. ADXL202EB Parts List

Reference

Value

Function

C1

2200 pF/25 V

C2

Added by User

C3

Added by User

C4

2200 pF/25 V

J1

Connector

All power and signal connection through J1

R1

Added by User

U1

ADXL202

Dual axis

±2g accelerometer

SETTING THE ADXL202’s BANDWIDTH

narrower bandwidth to improve noise performance. See Table

IV for some typical capacitor values.

C5

C4

C2

J1

A

C

EB

D

C1

U1

C3

Figure 2. ADXL202EB Part Layout (Top View)

SPECIAL NOTES ON HANDLING

Note that the ADXL202EB is not reverse polarity protected.

ADXL202.

Dropping the ADXL202EB on a hard surface may generate

several thousand g of acceleration. Enough to damage the accel-

erometer. Please refer to the ADXL202 data sheet for information

on shock survivability.