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10<br />
➔<br />
Products: Codecs<br />
Codecs with USB Interface<br />
Stereo <strong>Audio</strong> Codec with USB Interface<br />
PCM2906<br />
www.ti.com/sc/device/PCM2906<br />
As computers become more central to home PGA2500 entertainment, the ability<br />
to stream audio between computers and external hardware is becoming<br />
more common. TI has developed two • main 0dB, families 10dB to of 65dB products that<br />
of programmable gain<br />
allow designers to quickly and easily integrate USB audio functionality<br />
in 1dB steps<br />
into their designs. The TAS1020B and the • TUSB3200A Fully differential both feature I/O<br />
programmable USB audio interfaces. These • Four I 2 S-compatible general-purpose USB 1.1-<br />
based devices are capable of 24 bits at 48 digital kHz. Both outputs devices are based<br />
on the well-known 8052 core for ease of FEATURED programming. PRODUCT<br />
USB <strong>Audio</strong><br />
The PCM29xx and PCM27xx are fully plug-and-play compatible,<br />
allowing designers to add an extra stereo audio interface to their<br />
product, be it a home stereo, digital speaker system or even a stereo<br />
I/O soundcard.<br />
Key Features<br />
• Driverless plug-and-play functionality<br />
• S/PDIF I/O supporting 16 bits at 48 kHz<br />
• Uses SpAct architecture, TI’s unique system that recovers the<br />
audio clock from USB packet data.<br />
Applications<br />
• USB audio speakers<br />
• USB headsets<br />
• USB monitors<br />
To Know More<br />
• For a complete list of USB Codecs, see the Selection <strong>Guide</strong> on<br />
page 32.<br />
Stereo <strong>Audio</strong> Codecs with USB Interface<br />
Performance and Integration<br />
TUSB3200<br />
Streaming controller<br />
• General purpose<br />
• Multichannel<br />
PCM2702<br />
TAS1020B<br />
USB audio DAC<br />
• Self powered<br />
Streaming controller<br />
• Stereo only<br />
• Cost optimized<br />
PCM290x<br />
USB audio codec<br />
• Self/bus powered<br />
• W/SPDIF<br />
PCM2704<br />
USB audio DAC<br />
• Self/bus powered<br />
Key<br />
USB <strong>Audio</strong> Controllers<br />
• Programmable<br />
• Stereo and multichannel<br />
• Interface to DSPs,<br />
codecs, DACs and ADCs<br />
USB Codecs<br />
• Single-chip solution<br />
• Easy implementation<br />
• 92-dB dynamic range<br />
USB DACs<br />
• Single-chip solution<br />
• Easy implementation<br />
• 98-dB dynamic range<br />
Generation Timeline<br />
<strong>Audio</strong> <strong>Solutions</strong> <strong>Guide</strong> Texas Instruments <strong>1Q</strong> <strong>2007</strong>
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