General Description

The AK4545 is a 18bit high performance codec which supports variable sampling rate conversion compliant with Audio Codec ’ 97 Rev 2.1 requirements.

Features

• AC’ 97 Rev. 2.1 Compliant

• S/PDIF output

• 18bit Resolution A/D and D/A

• Exceeds PC99 Performance Requirements:

AK4545 (@fs=48k)

A/D……………… 90dBA

D/A……………… 89dBA

A-A………………95dBA

• Analog Inputs:

4 Stereo Inputs: LINE, CD, VIDEO, AUX

Speakerphone and PC BEEP Inputs

2 Independent MIC Inputs

• Variable Sampling Rate Support

48k, 44.1k, 32k, 22.05k, 16k, 11.025k, 8k

• Analog Output:

Stereo LINE Output with volume control

True Line Level with volume control

Mono Output with volume control

• 3D Stereo Enhancement

• POP Function & DAC Feed Back Control

• EAPD(External Amplifier Powerdown) Support

• Power Supplies: Analog 5.0V, Digital 3.3V

• Low Power Consumption

215mW(Analog:5V/Digital:3.3V) at full operation

• 48 Pin LQFP Package