CS3302 datasheet(13/15 Pages) CIRRUS

13 / 15 page

CS3302

2.4

Connection Diagram

Figure 4 shows a connection diagram for the

CS3302 amplifier when used with the CS5372 dual

∆Σ modulator and CS5376A digital filter. The dia-

gram shows differential sensors, a test DAC, and

analog outputs with anti-alias capacitors; power

supply connections including recommended by-

passing; and digital control connections back to the

CS5376A GPIO pins.

0.02

µF

C0G

0.0 2

µF

C0 G

0.02

µF

C0G

0.0 2

µF

C0 G

CS5372

∆Σ Modulator

INF +

INR +

INF -

INR -

INF -

INR -

INF +

INR +

VREF+

VREF-

VA +

VA -

DGND

M DATA1

MFLAG1

M DATA2

MFLAG2

MCLK

M SYN C

PW DN 1

OF ST

PW DN 2

LP W R

C S3302

D ifferential

Am p lifier

INB+

INA+

INA-

INB-

OU TF -

OUT R -

OU T F+

OUT R+

VA +

VA -

DGND

GA IN

M U X

P W D N

LPW R

C S3302

D ifferential

Am p lifier

INB+

INA+

INA-

INB-

OU TF -

OUT R -

OU T F+

OUT R+

VA+

VA-

DGND

GA IN

M UX

PW D N

LPW R

VA -

0.1

µF

VA +

0.1

µF

VA -

0.1

µF

VA +

0.1

µF

0.0 1

µF

0.0 1

µF

GPIO

G PIO (x2)

G PIO (x3)

GPIO

G PIO (x2)

G PIO (x3)

D ifferential

Senso r

D ifferential

Senso r

Test

DAC

To CS 5376

Digital Contro l

To CS 5376

Digital Contro l

2.5 V

Reference

VA +

0.1

µF

0.01

µF

VA-

0.1

µF

GU AR D

Figure 4. CS3302 Amplifier Connections

CS4373

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