CS4297-KQ Cirrus Logic, CS4297-KQ Datasheet - Page 43

• Manufacturer Part Number: CS4297-KQ
• Description: CrystalClear SoundFusion Audio Codec 97
• Manufacturer: Cirrus Logic

DS242F5
Power Supplies
DVdd1, DVdd2 - Digital Supply Voltage
DVss1, DVss2 - Digital Ground
AVdd1, AVdd2 - Analog Supply Voltage
AVss1, AVss2 - Analog Ground
REFERENCES
1) Intel, Audio Codec ‘97 Component Specifica-
2) Cirrus Logic, CS4610 SoundFusion PCI Audio
CS4297
CrystalClear™ SoundFusion™ Audio Codec ’97
tion, Revision 1.03, September 15, 1996.
http://developer.intel.com/pc-supp
/platform/ac97/
Accelerator Data Sheet.
http://www.corp.cirrus.com/products/
overviews/cs4610.html
These pins provide the digital supply voltage for the AC-link section of the CS4297. These pins
may be tied to +5 V digital or to +3.3 V digital. The CS4297 and digital controller’s AC-link
should share a common digital supply
These pins are the digital ground connection for the AC-link section of the CS4297. These pins
should be isolated from analog ground currents.
These pins provide the analog supply voltage for the analog and mixed signal sections of the
CS4297. These pins must be tied to +5 Volt power supply. It is strongly recommended that +5
Volts be generated from a voltage regulator to ensure proper supply currents and noise
immunity from the rest of the system.
These pins are the ground connection for the analog, mixed signal, and substrate sections of the
CS4297. These pins should be isolated from digital ground currents.
3) Cirrus Logic, CRD4610-1 AC’97 Motherboard
4) Steve Harris, Clif Sanchez, Personal Computer
5) Microsoft, PC Design Guidelines,
Reference Design Data Sheet.
http://www.cirrus.com/ftp/pubs/4610rd1.pdf
Audio Quality Measurements, Ver 0.5
http://www.corp.cirrus.com/products/
papers/meas/meas.html
http://www.microsoft.com/hwdev/desguid/
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