(), or Cambridge Silicon Radio
, is a company based in Cambridge
. CSR is a fabless
semiconductor manufacturer whose main product lines include connectivity, audio and location chips. It is listed on the London Stock Exchange
and is a constituent of the FTSE 250 Index
. It is the 15th largest fabless semiconductor company in the world by 2009 revenue.
The Company was founded in 1998
when it split away from Cambridge Consultants
as Cambridge Silicon Radio
. It was first listed on the London Stock Exchange
In 2005 the Company acquired Clarity Technologies, a leading Clear Voice Capture (CVC) business. In 2005 CSR also acquired the 3G wireless (WCDMA
) technology company UbiNetics
. In 2007, CSR acquired Nordnav, a Swedish based GPS
software company, and CPS, a Cambridge based GPS software company producing Enhanced GPS
in partnership with Motorola.
On 10 February 2009, CSR announced it was merging with SiRF
, the biggest global supplier of GPS chips, in a share deal worth $136 million.
On 21 February 2011, CSR announced it was merging with Zoran
, a video and imaging technology company.
CSR is a provider of multifunction connectivity, audio and location platforms. CSR’s technology portfolio includes: