A breakthrough in Bluetooth headset design:
BlueVOX QFN

CSR's latest headset IC - BlueVOX QFN - achieves a new low in power consumption and bill of materials (eBOM) costs for headset design. The example design offers talk times of up to 11 hours from a small, lightweight battery, and the eBOM (including a lithium battery) is less than $6 in production volumes!  

This ground breaking blend of performance and economy is not at the expense of quality. In fact, call clarity and range is superb, with a MOS voice quality score* of 3.7, thanks to CSR's innovative Bluetooth silicon with its sophisticated radio and EDR and eSCO support (eliminating annoying pops and clicks in long range and difficult radio environments).

The design comes in a ready to use form, and is based on a QFN-packaged BlueCore chip, and a low cost two layer PCB. By using CSR's PCB design as it is, the electronics element of a new headset product can be fixed within a few hours of receiving the development kit. CSR's new design is complete and interoperability tested, yet still highly software-configurable. User-configurable features include the functionality of button presses, LED flashing, pairing operation, etc.

BlueVOX QFN will open up major new markets for consumer electronics, allowing ODMs/OEMs to create sophisticated Bluetooth headsets for mass volume markets in both mature and developing economies. The design is equally efficient as a platform for headset products for VoIP markets. Click the buttons to find out more.

*MOS or 'Mean Opinion Score' is a measurement of voice quality on a scale of one to five (five being the optimum). It was originally scored by taking an average of a number of listeners' scores rated as (1) bad, (2) poor, (3) fair, (4) good, (5) excellent.  Algorithms are now used to test MOS quality. All CODECS introduce some quality degradation, so a score of 5 is not achievable.