VS1073 - Incredibly Capable Audio Codec Coprocessor
Washingtoner/10287874

TAMPERE, Finland - Washingtoner -- The VS1073 IC is a low-power mixed-signal audio coprocessor that can encode and decode a myriad of different formats. It can greatly lower the workload of a system microcontroller, freeing its time for other operations like communicating over Wi-Fi or Ethernet. To better connect with the outside world, VS1073 contains both a high-quality stereo ADC and DAC, along with an earphone amplifier capable of driving a 30-ohm load, and a 32-bit I2S digital output. From a hardware point of view VS1073 is a pin-compatible replacement for VLSI Solution's best-selling VS1053b and VS1063a audio coprocessors, except for the core voltage, lowered from 1.85 V to 1.25 V, and contributing to a lowered total power consumption. This lower voltage is made possible by a new manufacturing process, also making it possible to maintain longevity of the chip supply, always a priority of VLSI.

More on Washingtoner

• Spokane: Working Smoke Alarms Help Seven Escape Early-Morning House Fire
• CAPHRA warns push for ASEAN vape ban ignores science
• Spokane: Egypt National Team to Hold Open Training Session at Gonzaga University Ahead of FIFA World Cup 2026™
• Your Mortgage Toolbox Launches Free Mortgage Calculators That Show the Real Monthly Payment and Cash Needed to Close
• ENTOUCH Recognized on Inc.'s 2026 Best Workplaces List for the Third Year Running

VS1073 can decode (new features in bold) MP3, MP2, Ogg Vorbis, FLAC, ALAC, Ape, AAC, DSD, Opus, WMA, AC-3, WAV, and AIFF files. It can encode MP3, Ogg Vorbis, FLAC, WAV PCM / ADPCM, G.711 or G.722. There is also a full-duplex codec mode that can handle PCM, IMA ADPCM, G.711 and G.722.

VS1073 provides a 5-band equalizer, and sound effects like a speed shifter and VLSI Solution's proprietary EarSpeaker headphone processing. It is also possible to mix PCM sound effects or audio from a stereo analog input on top of playback audio.

All these features, combined with CD-quality Analog-to-Digital and Digital-to-Analog signal path performance as well as the 30-ohm earphone amplifier, make VS1073 the first choice for a wide range of consumer and industrial applications.

VS1073 is offered in the familiar LQFP-48 7x7x1.4 RoHS compatible package.
VS1073 engineering samples are available now. Mass production is expected to start in Q3/2025.

More information, including the datasheet for VS1073, is
available at https://www.vlsi.fi/en/products/vs1073.html