Cirrus-logic CS5509 User Manual download pdf (Page 18)

CS5509

18 DS125F3

Figure 9b. System Connection Diagram Using Split Supplies

CS5509

+5V

Analog

Supply

VD+VA+

VREF+

VREF-

GND

0.1 µF 0.1 µF

8

7

9

10

11

12

13

+

-

Analog

Signal

AIN+

AIN-

SCLK

SDATA

14

15

XIN

XOUT

16

DRDY

CAL

3

1

CS

CONV

2

6

BP/UP

4

5

32.768 kHz

Voltage

Reference

Optional

Clock

Source

Serial

Data

Interface

Control

Logic

+3.3V to +5V

Digital

Supply

Note: VD+ must never be more positive than VA+

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