SyChip will soon sample a chip-scale module (CSM) aimed at making VoIP phones more competitive with mobile phones in terms of battery life. The VWLAN7101 CSM supports Linux, and integrates an 802.11b/g WLAN modem, baseband processor, MAC, and a new “SV1000 VoIP Engine” said to improve VoIP call processing efficiency.

SyChip's earlier, non-SV1000-equipped WLAN6100EB CSM is pictured at right, in case anyone was wondering what a CSM looks like.

The VWLAN7101 will be the first of SyChip's VWLAN71xx-series CSMs to incorporate the SV1000 engine. The engine handles real-time VoIP-specific processing demands three-to-five more efficiently than standard processors, SyChip claims. These demands include VoIP compression/decompression, jitter buffering, encryption, and acoustic echo cancellation.

SyChip says the SV1000 engine uses only 14 mA during VoIP calls, enabling VoIP phone designs that offer up to eight hours of call time, with “typical” mobile phone batteries.

VWLAN7101 Block Diagram
(Click image for larger view)
SyChip says it will bundle its SyVoice software suite with the VWLAN7101. The suite includes:

• G.711, G.729A/B, G.723, G.726 VoCoders
• SIP 2.0 stack
• jitter buffer
• call control functions
• IPSEC
• WMM Quality of Service (QoS)
• WPA2 security
• Bluetooth co-existence

Will Strauss, president of Forward Concepts, stated, “SyChip, by developing their own DSP-based VoIP engine, has taken true strides to deliver a solution that will enable mobile VoIP phones with competitive talk times and price points.”

Availability

The VWLAN7101 (including the SV1000) will be available for OEM sampling early in the second quarter, according to SyChip. It will be packaged in a near Quad Flat No-Lead package (QFN) that allows for direct attachment to the main printed circuit board using standard surface-mount technology. The module will be priced at $15 in volumes of 100,000.

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