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YMF743

AC鈥?7 Revsion2.1 Audio CODEC

with Digital Audio I/F

OVERVIEW

YMF743 is an AC鈥?7 Audio CODEC LSI, which is fully compliant with the industry standard 鈥淎udio

CODEC 鈥?7鈥?component specification (Revision 2.1).

Different from former AC鈥?7, YMF743 supports new features like SPDIF OUT and Zoomed Video Port.

Without using a digital controller, these new features can be enhanced in the AC鈥?7 sound system that has an

ICH controller built-in chipset.

Low power consumption is supported not only in the normal mode but can be controlled in the power-down

mode.

FEATURES

鈥?AC鈥?7 Revision 2.1 Compliant

鈥?Exceeds PC98 / PC99 Audio Performance Requirements

鈥?Analog Inputs :

- 4 Stereo Inputs: LINE, CD, VIDEO, AUX

- 2 Monaural Inputs: Speakerphone and PC BEEP Inputs

- 2 Independent Microphone Inputs

鈥?PC BEEP can directly output to Line Out

鈥?Internal +20dB amplifier circuitry for microphone

鈥?Analog Outputs : Stereo LINE Output, True LINE Level and Monaural Output

鈥?Supports Zoomed Video Port

鈥?Supports Consumer IEC958 Output Port (SPDIF OUT)

鈥?Supports 3D Enhancement (Wide Stereo), and Bass / Treble control

鈥?Multiple CODEC Capability

鈥?Programmable Power Down Mode

鈥?Supports EAPD (External Amplifier Power Down)

鈥?Power Supplies : Analog 5.0V, Digital 3.3V or 5.0V

鈥?48-Pin SQFP Package (YMF743-S)

YAMAHA CORPORATION

YMF743 CATALOG

1998

Decembe 3,

CATALOG No.:LSI-4MF743A4

December 18, 2000

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