SigmaTel Announces Second Quarter 2007 Earnings Conference Call and Webcast

  
    
  
  
    
      SigmaTel, Inc. (NASDAQ:SGTL) announced today that it will release its 
      financial results for the second quarter 2007 on Tuesday, August 7, 
      2007, after the close of market. A conference call will be held at 3:30 
      p.m. Central Time and will be simulcast over the Internet at www.streetevents.com 
      and www.sigmatel.com.
    
    
      During the call, Phil Pompa, Chief Executive Officer and President, and 
      Scott Schaefer, Vice President of Finance and Chief Financial Officer, 
      will review second quarter 2007 business and financial results and will 
      give financial guidance for the third quarter 2007.
    
    
      A replay will be available after the call until September 4, 2007, at 
      the websites listed above or by calling 888-203-1112 for domestic calls 
      or 719-457-0820 for international and entering passcode number 2154838.
    
    
      About SigmaTel:
    
    
      SigmaTel, Inc., a fabless semiconductor company headquartered in Austin, 
      Texas, designs, develops, and markets proprietary, analog intensive, 
      mixed-signal ICs for a variety of digital multimedia products in the 
      consumer electronics markets, including digital media players, 
      multi-function peripheral products, digital photo frames and digital 
      televisions. SigmaTel provides worldwide infrastructure and complete, 
      system-level solutions that include highly-integrated ICs, customizable 
      firmware and software, software development tools, reference designs, 
      and applications support to add value to multinational companies. The 
      Company’s focus is on providing system-level 
      solutions that enable customers to rapidly introduce and offer 
      electronic products that are small, light-weight, power-efficient, 
      reliable, and cost-effective. SigmaTel is ISO 9001:2000 certified and is 
      committed to providing customers with high performance, quality products 
      along with superior customer service.
    
    
      For more information on SigmaTel, please visit: www.sigmatel.com.