Codec has multimedia audio standards covered

The WM8777 is the latest generation of the multichannel codec family from Wolfson Microelectronics.

The WM8777 is the latest generation of the multichannel codec family from Wolfson Microelectronics.

The WM8777 leads the industry in integrated audio signal processing capability.

When combined with a commercially available DSP, this single mixed-signal device provides all the major audio functions for next generation of 5.1, 6.1 and 7.1 audiovisual systems, including DVD receivers, flat panel televisions and other multimedia home and automotive equipment.

The WM8777 codec integrates a high performance eight-channel DAC, two-channel ADC, with what Wolfson considers to be the highest performing four-input digital interface transceiver (S/PDIF) of its type, as well as bass management, stereo mix-down, tone and volume control for both 5.1 analogue inputs and digital playback sources.

The WM8777 is also the only commercially available chip of this kind to provide a secondary audio interface, which allows the S/PDIF interface to run independently of the codec audio interface - a vital feature simplifying customer designs.

"The WM8777 integrates the functions of what is currently often done in three separate devices", said Jason Coughlan, Senior Product Marketing Engineer at Wolfson Microelectronics.

"By integrating these functions alongside leading S/PDIF performance and the unique secondary interface, WM8777 is the logical choice for customers wishing to reduce design complexity and save cost".

"No other solution can offer this package of benefits".

Each of the eight DAC channels has a master volume control, with a gain range of +20 to -100dB in 1dB steps.

The WM8777 provides full 7.1 channel support or 5.1 operation, whilst simultaneously supporting auxiliary remote room audio.

Sampling rates range from 8 to 192kHz and the integrated stereo headphone amplifier includes source selection.

A single serial interface on the WM8777 provides access to all the features and extensive digital routings offer additional flexibility.

The WM8777 is available in a 100-pin TQFP package.

Back to top