11 August 2006
Test at the cutting edge
CSR has developed a Bluetooth EDR chip incorporating fm radio using R&S’ CBT rf test equipment.
Ensuring that test equipment remains at the cutting edge of user requirements is a notoriously difficult but essential task for test vendors. It would seem that Rohde & Schwarz has succeeded in the case of its EDR Bluetooth instruments, if CSR’s custom is to go by. CSR has developed a Bluetooth EDR chip incorporating fm radio using R&S’ CBT rf test equipment, which includes optional coverage of Bluetooth V2.0 + EDR – this has three times the data transmission rates of the V1.1 and V1.2 standards.
Comments Tim Newton, a consultant rf & signal processing systems designer at CSR: “Rohde & Schwarz was the first company to show EDR operating – a key deciding factor for CSR.”
The EDR test specification demands four new transmitter and four new receiver measurements. According to R&S, its CBTGo software provides 18 of the test cases defined in the standard.
The CBT allows transmitter and receiver measurements to be performed, and provides support for spectrum measurements. Among the EDR receiver tests it supports is the loopback test mode, which verifies the receiver sensitivity of an existing Bluetooth link under virtually realistic conditions. The user can also perform receiver tests with dirty TX.
Author
Vanessa Knivett
Supporting Information
Websites
http://www.csr.com
http://www.rohde-schwarz.com
Companies
CSR plc
Rohde & Schwarz (UK) Ltd
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