Audio Driver for NEC Versa S940

AC97 CODEC CONNEXANT 20468-31

NEC Driver :All NEC Versa S940 Driver.

Audio Codec

AC97 controller is supported by ICH4M South Bridge and corperates with the AC97 CODEC that can support the Audio function to meet PC99 Audio requirement.
Package: 48-pins TQFP

Feature:

• Companion audio solution for ICH4 core logic
• Designed for Windows XP logo certified
• Fully compliant with PC99, Intel AC ?97 V2.1 and AAMR V1.01
• Full duplex audio recording and playback, sample rate from 7kHz to 48 kHz
• 250mW stereo line or headphone outputs with 0.2% THD
• Optional 1.5W monaural output for low cost,internal speaker operation

Power:

• 1.5W for mono differential
• 250 mW for stereo

Audio Amplifier Max9755ETI+

Package: 28P TSSOP

Feature:

• PC99 compliant
• System beep detect
• Stereo switchable bridged/single-ended power amplifiers
• Thermal shutdown protection circuitry

Power Output:

• 1.25W (typical) for differential output into 8 ohm
• 85 mW for single end mode output inte 32 ohm

Speaker

• Impedance 4ohm +/- 20% at 1KHz
• Frequency Range 300 ~ 20,000 Hz
• Lowest resonanct frequency 730 +/- 20% Hz
• Power Rating 1,500mW
• Output sound pressure level 73 +/- 3 db/2W
• Dimension 16 x 35 mm
• Weight 22 g