CS4239 View Datasheet(PDF) - Cirrus Logic

Part Name

Description

Manufacturer

CS4239

CrystalClear™ Portable ISA Audio System

Cirrus Logic 

CS4239

CrystalClearTM Portable ISA Audio System

Speaker Out CD-ROM

Speaker In

Analog Ground

Crystal

Part

1

Digital Ground

Figure 24. Suggested Add-In Card Layout

PIN 1

PIN 98

VDF3

.1µF

PIN 97

SGND3

PIN 80

AGND

PIN 81

VA

.1µF

1µF

+ PIN 79

.1µF REFFLT

PIN 17

VDF1

.1µ F

PIN 18

SGND1

Analog

Digital

= vias through to

power/ground plane

PIN 71

TEST

PIN 66

SGND2

.1µF

PIN 65

VDF2

PIN 53

SGND4

PIN 45

VD1

.1µF

PIN 46

DGND1

Figure 25. Recommended Decoupling Capacitor Positions

DS253PP2

79

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