Warburg Pincus' RDA Microelectronics, a China-based fabless developer of RF and mixed-signal semiconductors for wireless communications, filed on Thursday with the SEC to raise up to $100 million in an initial public offering. The Shanghai-based company, which was founded in 2004 as Himix Technologies, has more than 500 customers who use its products in mobile handsets, set-top boxes, MP3 players and other consumer electronic devices. RDA Microelectronics booked $149 million in sales for the 12 months ended June 30 and plans to list on the NASDAQ under the symbol RDA. Morgan Stanley and Credit Suisse are the lead underwriters on the deal, for which pricing terms and timing were not disclosed.
