Working silicon supports dual WLAN standards

Synad has taken delivery of a working implementation of Mercury5G, its two-chip dual-band WLAN chipset, from semiconductor foundry partner UMC.

Synad has taken delivery of a working implementation of Mercury5G, its two-chip dual-band WLAN chipset, from semiconductor foundry partner UMC.

The integrated chipset is part of Synad's Mercury5G solution, which enables client interoperability and roaming between 2.4 and 5GHz wireless local area networks (WLANs).

Mercury5G also includes protocol software, operating system drivers, a developers kit and reference designs.

The Mercury5G chipset comprises two devices, a radio-chip (SYRF8100) and modem/MAC-chip (SYBB8200).

Both devices have been manufactured on UMC's 0.18-micron CMOS process, with the RF chip using UMC's RFCMOS enhancements.

"Synad has made a strategic choice in the selection of CMOS technology because of its inherent low cost of manufacture and wide availability.

UMC's 0.18-micron CMOS technology has enabled us to create efficient RF circuits at 5GHz and beyond without compromising performance.

Creating a single chip, dual band radio is a world first and sets the industry standard for dual band WLAN.

UMC's support has been instrumental in our silicon success", said Ashok Dhuna, chief technical officer (CTO), Synad.

Mercury5G's high level of integration delivers minimum system costs and enables manufacturers to build a dual band client solution for a cost comparable to a single-band solution.

The all CMOS direct-conversion (zero-IF) dual-band radio chip supports WLAN standards in both 2.4 and 5GHz bands.

Highly integrated and requiring no external baseband filtering components, it exceeds the performance requirements for both the 5 Hz IEEE802.11a and 2.4GHz IEEE802.11b standards.

Mercury5G also delivers the architectural flexibility in terms of processor headroom, memory and software structure to support emerging standards such as IEEE802.11g as they are ratified, and to enable end equipment manufacturers to develop innovative client solutions.

"UMC recognises Synad's leadership in dual band technology and is delighted to have cooperated with them on this project.

The success of Synad's Mecury5G chipset showcases UMC's leadership in radio, analogue and mixed-signal 0.18-micron CMOS technology", said Fu Tai Liou, chief officer of worldwide sales and marketing, UMC.

Mercury5G is based on Synad's patent pending AgileRF architecture, devised by Synad to deliver client interoperability between IEEE802.11 standards, bringing a new class of connectivity and usability without compromising performance.

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