CSR's wireless VoIP phone reference design boasts $15 eBOM - Embedded.com

CSR’s wireless VoIP phone reference design boasts $15 eBOM

Based on its UniFi 802.11b/g single-chip Wi-Fi technology, CSR's VoIP UniVox reference design will enable phones that deliver 20 hours talk time and 400 hours standby time from typical handset batteries.

CSR is providing UniVox customers with schematics, layout and bill of materials (BOM) as well as royalty-free design software. The BOM is under $20, with electronic bill of materials (eBOM) totally less than $15.

The UniFi-1 chip comes in a chip-scale package that provides a 6-by-6-mm footprint.

CSR is demonstrating and sampling UniVox today, and expects a full production-ready UniVox example design by the end of the year.

CSR has designed its own MAP (Multimedia Applications Processor) into UniVox, combining a low-power RISC-based applications processor with high-performance DSP function, audio CODECs and echo cancellation, as well as intelligent power management.

To ensure high voice quality UniVox supports 802.11e and WMM-SA, which provides optimized and prioritized quality of service (QoS) by eliminating potential latency or jitter. UniVox also supports 802.11i to add enhanced levels of security.

UniVox is a secure platform preventing unauthorized use or eavesdropping. Support for 802.11i, WEP, WPA and WPA2 security standards means UniVox based phone designs will be compatible with standard wireless router protocols.

UniVox can also be pre-configured with IP and gateway addresses, allowing ODMs to produce branded 'out of the box' VoWiFi phones specific for broadband or VoIP service providers.

UniVox uses SIP (Session Initiation Protocol) version 2, the widely adopted open standard for initiating voice or video calls across Internet connections. UniVox can also be configured (at the production stage) to support the alternative IAX2 protocol, depending on the requirements of the VoIP service provider.

The DSP co-processor inside the applications processor includes the company's own CVC (Clear Voice Capture) echo cancellation software, which combined with the prioritized QoS, gives the end-user the maximum sound quality at low cost. UniVox has a default MMI (Man Machine Interface) included; a software development kit can be used to further configure the phone's interface and to add additional audio CODECs if required.

More information is available at www.csr.com.

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