Jack Hyslop, science specialist for Christie's

 British chipmaker CSR said Wednesday that it has agreed to a takeover from US giant Qualcomm.
The cash offer, pitched at 900 pence per share, values the group at £1.56 billion ($2.5 billion, 2.0 billion euros), it added in a statement.
"The board believes this represents a very attractive outcome for CSR shareholders, customers and employees," said CSR chairman Ron Mackintosh.
CSR, formerly known as Cambridge Silicon Radio, had rejected a takeover approach from US firm Microchip Technology in August.