CS3301

DS595F2

13

2.4

Connection Diagram

Figure 4 shows a connection diagram for the

CS3301 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

0.02

µF

C0G

0.02

µF

C0G

0.02

µF

C0G

CS5372

∆Σ Modulator

INF+

INR+

INF-

INR-

INF-

INR-

INF+

INR+

VREF+

VREF-

VA+

VA-

VD

DGND

MDATA1

MFLAG1

MDATA2

MFLAG2

MCLK

MSYNC

PWDN1

OFST

PWDN2

LPWR

CS3301

Differential

Amplifier

INB+

INA+

INA-

INB-

OUTF-

OUTR-

OUTF+

OUTR+

VA+

VA-

VD

DGN

D

CLK

GAIN

MUX

PWDN

LPWR

CS3301

Differential

Amplifier

INB+

INA+

INA-

INB-

OUTF-

OUTR-

OUTF+

OUTR+

VA+

VA-

VD

DGN

D

CLK

GAIN

MUX

PWDN

LPWR

VA-

0.1

µF

VA+

0.1

µF

VA-

0.1

µF

VA+

0.1

µF

VD

0.01

µF

VD

0.01

µF

MCLK

GPIO

GPIO

GPIO (x2)

GPIO (x3)

MCLK

GPIO

GPIO

GPIO (x2)

GPIO (x3)

Differential

Sensor

Differential

Sensor

CS4373A

Test DAC

3

2

3

2

To CS5376A

Digital Control

To CS5376A

Digital Control

2.5 V

Reference

VA+

0.1

µF

0.01

µF

VD

VA-

0.1

µF

Figure 4. CS3301 Amplifier Connections