Exhibit 99.1

     Cirrus Logic Signs Agreement to Acquire Apex Microtechnology

  Leading Provider of Precision High-Power Analog Amplifier Products
              Expands Cirrus Logic's Industrial Business


    AUSTIN, Texas--(BUSINESS WIRE)--July 12, 2007--Cirrus Logic Inc.
(Nasdaq:CRUS), a leading designer of high-precision analog,
mixed-signal and embedded integrated circuits, today announced that it
has signed a definitive agreement to acquire Apex Microtechnology, a
leading provider of precision high-power analog amplifier products,
for $42 million in cash.

    Founded in 1980 with headquarters in Tucson, Ariz., Apex
Microtechnology is a leading innovator of integrated circuits, hybrids
and modules used in a wide range of industrial and aerospace
applications that require high-power precision analog products, such
as PWM and power amplifiers. These precision amplifiers are used for
driving motors, piezo electrics, programmable power supplies and other
devices requiring high power and precision control. Apex
Microtechnology employs approximately 90 people.

    "Apex Microtechnology's proven success and diversified customer
base gives Cirrus Logic the expertise to expand into high-power
industrial markets," said Jason Rhode, president and chief executive
officer, Cirrus Logic. "Combining Cirrus Logic's signal processing and
IC design skills with Apex's expertise in power drivers and amplifiers
will allow us to introduce precision power products with higher levels
of integration and functionality."

    Apex generated revenue of approximately $4 million to $5 million
per quarter during the past year with strong gross margins, in keeping
with Cirrus Logic's overall corporate goals. Apex has quarterly
operating expenses in the range of $1.5 million to $2 million. Cirrus
Logic expects that the acquisition will become positive to earnings
per share in the third fiscal quarter of 2008. Cirrus Logic
anticipates the acquisition to close by the end of August.

    Apex Microtechnology offers approximately 80 products supporting
1,200 customers worldwide. Apex's top customers include leaders in
industrial and aerospace markets. Apex products are designed to
operate in the high power realm of output current greater than one amp
and/or high voltage greater than 60 volts. Apex's product portfolio
includes products that deliver power in the range of one watt to
thousands of watts, with voltages up to 1,200 volts. Apex
Microtechnology products will continue to be marketed under the Apex
brand.

    Cirrus Logic Inc.

    Cirrus Logic develops high-precision analog and mixed-signal
integrated circuits for a broad range of consumer and industrial
markets. Building on its diverse analog mixed-signal patent portfolio,
Cirrus Logic delivers highly optimized products for consumer and
commercial audio, automotive entertainment and industrial
applications. The company operates from headquarters in Austin, Texas,
with offices in Europe, Japan and Asia. More information about Cirrus
Logic is available at www.cirrus.com.

    Safe Harbor Statement

    Except for historical information contained herein, the matters
set forth in this news release contain forward-looking statements,
including statements related to the anticipated closing of a
transaction with Apex Microtechnology and the financial effects of the
transaction, including the effect on our earnings per share. These
forward-looking statements are based on our current expectations,
estimates and assumptions and are subject to certain risks and
uncertainties that could cause actual results to differ materially.
For factors that could cause our results to vary from expectations,
please see the risk factors listed in our Form 10-K for the year ended
March 31, 2007, and in our other filings with the Securities and
Exchange Commission, which are available at www.sec.gov. We undertake
no obligation to update or revise any forward-looking statements,
whether as a result of new developments or otherwise.

    Cirrus Logic and Cirrus are trademarks of Cirrus Logic Inc. All
other product names noted herein may be trademarks of their respective
holders.


    CONTACT: Cirrus Logic Inc., Austin
             Bill Schnell, 512-851-4084
             bill.schnell@cirrus.com