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WM8759

24-bit 192kHz Stereo DAC with Headphone Buffer

WOLFSON MICROELECTRONICS plc

www.wolfsonmicro.com

Advanced Information, September 2004, Rev 3.0

Copyright

2004 Wolfson Microelectronics plc

DESCRIPTION

The WM8759 is a high performance stereo DAC with an

integrated headphone driver. It is designed for audio

applications such as portable DVD, MP3 players or

consumer equipment with line output and headphone output

connections.

The WM8759 supports data input word lengths from 16 to

24-bits and sampling rates up to 192kHz. The WM8759

consists of a serial interface port, digital interpolation filters,

multi-bit sigma delta modulators and stereo DAC in a 14-pin

SOIC package.

The hardware control interface is used for the selection of

audio data interface format, enable and de-emphasis. The

WM8759 supports I

Operating on split analog digital supplies the WM8759

allows very lower power consumption from the digital

section, whilst supporting large output powers from the

analog headphone driver.

FEATURES

•

Stereo DAC with headphone driver

•

50mW power into 16R load on 3.3V supply

•

Audio Performance

-

100dB SNR (‘A’ weighted @ 48kHz)

-

-88dB THD line level

-

-72dB THD headphone

•

DAC Sampling Frequency: 8kHz – 192kHz

•

Pin Selectable Audio Data Interface Format

-

I

•

2.7V - 5.5V Supply Operation, Split Analog-digital supplies

•

14-pin SOIC Package

•

Typical power consumption 20mW on 2.7V supply

APPLICATIONS

•

Portable music Players

•

Home music players

•

Digital TV

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