General Description

The AK4541 is a 18bit high performance codec compliant with Audio Codec ’97 Rev 2.1 requirements. The AC Link serial interface allows the AK4541 to be used with digital controllers as well as custom logic accelerators to meet PC98 and PC99 requirements for a PCI audio solution.

Features

• AC’97 Rev. 2.1 Compliant

• 18bit Resolution A/D and D/A

• Exceeds a PC98/99 Performance Categories:

A/D……………… 87dBA SNR

D/A……………… 87dBA SNR

D/A+Mixer…...… 85dBA SNR

A-A……………… 92dBA SNR

• Analog Inputs:

4 Stereo Inputs: LINE, CD, VIDEO, AUX

Speakerphone and PC BEEP Inputs

2 Independent MIC Inputs

• Direct PC_Beep Pass Through for lower system costs

• Analog Output:

Stereo LINE Output with volume control

True Line Level with volume control

Mono Output with volume control

• Multiple codec Capability

The AK4541 can work as a Primary or Secondary.

• EAPD(External Amplifier Powerdown) Support

• Power Supplies: Analog 3.3V, Digital 3.3V

• Lower Power Consumption: 135mW at full operation

• 48 Pin LQFP Package