Mechanical and electrical characteristics. STMicroelectronics A3G4250D

A3G4250D

1

Block diagram and pin description

Block diagram and pin description

Figure 1.

Block diagram

+

Ω

x,y,z

X+

Y+

Z+

M

U

X

Z-

Y-

X-

CHARGE

AMP

MIXER LOW-PA SS

FILTER

DRIVING MA SS

Feed ba ck loop

E

R

A

T

E

M

P

T

U

R

E

S

O

R

S

E

N

A

D

C

1

A

D

C

2

I

T

A

L

D

I

G

T

E

R

I

N

G

F

I

L

I2C

S PI

C S

S CL/ S PC

S DA/ S DO/ S DI

S DO

REFERENCE

TRIMMING

CIRCUIT S

FIFO

CLOCK

&

PHA S E GENERATOR

CONTROL LOGIC

&

INTERRUPT GEN.

INT1

DRDY/INT2

AM07225v1

The vibration of the structure is maintained by drive circuitry in a feedback loop. The sensing signal is filtered and appears as a digital signal at the output.

Figure 2.

Pin connection

+Ω

Z

1

X

+Ω

Y

+Ω

X

(TOP VIEW)

DIRECTION

S

OF THE

DETECTABLE

ANGULAR RATE

S

RE

S

12

RE

S

RE

S

RE

S 9

1 3 16

8

BOTTOM

VIEW

1

4

Vdd_IO

S

CL/

S

PC

S

DA/

S

DI/

S

DO

S

DO/

S

A0

5

AM07226v1

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