Cirrus-logic AN31 Bedienungsanleitung PDF herunterladen (Seite 15)

VA+ VD+

VREF+

VREF-

AIN1+

CS5504

20 bits

AIN1-

A0

VA- DGND

SCLK

SDATA

CONV

CAL

XIN

3

2

6

2

3

4

6

LT1007

4

3

2

20

14

17

CS

DRDY

116

10

15

8

7

2k

2k

1k

2mV/V

Transducer

+10

4

100

0.005

100

7

+10

+10

3

4

5

6

2

7

0.1

10

+

MIC4428

or

MIC4425

+10V

17.8k

10k

≈

3.6V

0.47

0.1

AIN2+

AIN2-

19

18

330 kHz

OSC

11

9

13

12

7

5

350

+

-

350

350350

100pF

System

Microcontroller

49.9k

49.9k

Gain

Trim

1k

200

0.005

0.005

604

≈

3.33V

0.01

0.01

BP/UP

40 Conversions/sec

before averaging

5 Volt

Regulator

Figure 11. Switched Bridge with CS5504 Using +10 Volt Analog Supply

Bridge Transducer Digitizer Circuits

AN31REV3 15

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 27 28

Kommentare zu diesen Handbüchern

Keine Kommentare