This Day On The Street
Continue to site right-arrow
ADVERTISEMENT
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here
Cramer's Action Alerts PLUS - See his portfolio and get alerts BEFORE every trade. Learn more NOW!

Silicon Labs Simplifies Digital Class D Audio Development For 32-Bit Embedded Designs

Silicon Laboratories Inc. (NASDAQ: SLAB), a leader in high-performance, analog-intensive, mixed-signal ICs, today introduced a cost-effective USB-based evaluation kit that enables developers to add digital Class D audio capabilities to 32-bit embedded designs based on Silicon Labs’ feature-rich SiM3U1xx Precision32™ microcontrollers (MCUs). The new Class D ToolStick kit demonstrates how easy and economical it is to upgrade basic “buzzer/beeper” alert sounds used in personal medical devices, fitness equipment, high-end toys, small appliances and other consumer electronics products to more sophisticated voice prompts, music, sound clips and even streaming audio.

Silicon Labs’ highly integrated SiM3U1xx MCUs are well suited for digital Class D power amplification applications without the hassle and expense of adding discrete Class D amplifiers. The SiM3U1xx MCUs include a 300 mA high-drive I/O capable of directly driving a small speaker, a crystal-less USB transceiver compatible with the USB audio interface, two 250 ksps 12-bit analog-to-digital converters (ADCs), and an I2S receiver that supports audio streaming from a PC, a portable music player or a wide range of I2S-enabled audio devices. The only external components required to drive Class D audio from SiM3U1xx MCUs are inexpensive inductors, some capacitors and ferrite beads.

In addition to supporting Class D audio capabilities, the new ToolStick also enables developers to add capacitive touch buttons and sliders to their 32-bit embedded systems or use the SiM3U1xx MCU’s high-drive I/Os with pulse-width modulation (PWM) to directly drive other components such as small motors, eliminating the need for separate power field-effect transistors (FETs).

The Class D ToolStick board is powered from USB using the SiM3U1xx MCU’s internal 5 V regulator, and it can play music from a stereo jack, a computer or a recorded message using a simple speaker. The Class D ToolStick provides four modes of operation: sampling data from a portable music player using the MCU’s on-chip ADCs, USB audio streaming from a PC, playing pre-recorded sound clips stored from on-chip flash memory using a common audio compression algorithm, and a voice recorder that stores data in flash using an audio compression algorithm. Developers can easily handle mode transition through capacitive touch buttons and control volume with a capacitive touch slider.

1 of 3

Check Out Our Best Services for Investors

Action Alerts PLUS

Portfolio Manager Jim Cramer and Director of Research Jack Mohr reveal their investment tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
Quant Ratings

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
Stocks Under $10

David Peltier uncovers low dollar stocks with serious upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
14-Days Free
Try it NOW
Only $9.95
Try it NOW
14-Days Free
Try it NOW

Check Out Our Best Services for Investors

Dividend Stock Advisor

David Peltier identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Updates with exact steps to take - BUY, HOLD, SELL
Trifecta Stocks

Every recommendation goes through 3 layers of intense scrutiny—quantitative, fundamental and technical analysis—to maximize profit potential and minimize risk.

Product Features:
  • Model Portfolio
  • Intra Day Trade alerts
  • Access to Quant Ratings
Options Profits

Our options trading pros provide over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.

Product Features:
  • Actionable options commentary and news
  • Real-time trading community
Try it NOW
Try it NOW
Try it NOW
To begin commenting right away, you can log in below using your Disqus, Facebook, Twitter, OpenID or Yahoo login credentials. Alternatively, you can post a comment as a "guest" just by entering an email address. Your use of the commenting tool is subject to multiple terms of service/use and privacy policies - see here for more details.
Submit an article to us!
SYM TRADE IT LAST %CHG

Markets

DOW 18,132.70 -81.72 -0.45%
S&P 500 2,104.50 -6.24 -0.30%
NASDAQ 4,963.5270 -24.3630 -0.49%

Partners Compare Online Brokers

Free Reports

Free Newsletters from TheStreet

My Subscriptions:

After the Bell

Before the Bell

Booyah! Newsletter

Midday Bell

TheStreet Top 10 Stories

Winners & Losers

Register for Newsletters
Top Rated Stocks Top Rated Funds Top Rated ETFs