BRIEF- CSR posts Q4 revenue at top end, op profit up

LONDON Thu Feb 21, 2013 2:10am EST

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LONDON Feb 21 (Reuters) - CSR PLC : * Auto alert - CSR Plc Q4 revenue 249.2 million usd versus 244 million

usd year ago * Q4 operating profit $15.3M versus $0.6M * Intention to return $50 million via buyback * Expect first quarter revenues to be in the range of $215 million to $235