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Skype and other PC-based VoIP applications
With full function integration that quickens design time, the W681308 provides a single-chip, one-stop solution for a spectrum of Skype and other PC-based VoIP applications from wired and wireless USB handsets, to USB speaker phones, to PSTN/USB dual mode phones, to USB PSTN gateways and USB Analog Telephone Adapters (ATAs) to the wireless USB 2.4Ghz base / handset. Winbond's new higher-integration part can replace 3 to 4 devices and offers the lowest BOM costs for PC-based VoIP applications. Its 16-bit ADC/DAC with 8/16/48-kHz wide-band sampling rate results in the best voice quality in a VoIP environment.
Acoustic Echo cancellation
Winbond's W681308 chip is USB2.0 full speed compatible and integrates a fast 8051 MCU that enables feature rich applications. The part also has a 8/16/48-kHz sampling rate wideband Codec with a 16-bit ADC/DAC and Acoustic Echo cancellation (AEC) and AGC to support USB speaker phone applications. This single-chip solution also supports full-duplex echo cancellation, 3-channel PCM mixer, integrated microphone amplifier and speaker driver, flexible OTP custom programming and complete reference design solutions. The high integration of the W681308 enables lower cost and smaller board space design.
Skype phones and PC peripheral applications
Skype, which has revitalized the VoIP market, experienced a significant growth since 2006 and with Skype's nationwide calling program at an annual $29.95 cost, industry forecasts call for an exponential growth as compared to other VoIP telephony options. Winbond, a leading supplier of semiconductor solutions to the consumer, computer, communications and electronics products markets, continues its commitment to the VoIP market and specifically Skype phones and PC peripheral applications with these new products.
USB Audio and PC-based VoIP solutions
"Winbond's market commitment is to provide a complete line of USB Audio and PC-based VoIP solutions. With this new product for USB VoIP applications, we are enabling customers to easily and quickly build a full line of USB VoIP products for Skype," said Ike Saeed, Vice President of Marketing Mixed Signal Product Center, Winbond Electronics Corporation America.
Winbond USB Audio Controller Series
This device joins the Winbond USB Audio Controller Series (W681306, W681307 and W681308) which provides a complete line of USB VoIP and audio solutions including Skype with integrated, fast MCUs, USB2.0 Full Speed compliant controller, 16-bit ADC/DAC with 8-kHz to 48-kHz sampling rate. They support Skype or SIP USB VoIP application and other (Instant Messaging (IM) options such as MSN and Yahoo Messenger. This Series is designed to provide the highest voice quality in a VoIP environment and delivers USB VoIP solutions for customers with the shortest time-to-market requirements. A complete Software Development Kit (SDK) and 8051-based Keil C development system for these parts is available. The W681308 is in a 48-pin LQFP lead-free package. W681306 and W681307 are both in 100-pin LQFP lead-free packages. W681308 pricing is being quoted as $1.80 at 10k quantity.
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