Product category: Communications ICs (Wireless)
News Release from: Toshiba Electronics Europe | Subject: TC35672/TA35151 chipset
Edited by the Electronicstalk Editorial Team on 23 September 2002
Two-chip set sets
up broadband wireless LANs
Toshiba has developed a 5GHz-range local area network chipset that provides the essential components for a high-speed, broadband wireless LAN that conforms to the IEEE802.11a specification
Toshiba has developed a 5GHz-range local area network (LAN) chipset that provides the essential components for a high-speed, broadband wireless LAN that conforms to the IEEE802.11a specification. The chipset comprises a baseband LSI and intermediate frequency (IF) IC. The TC35672 baseband LSI integrates a dedicated circuit that can process data transferred at 54Mbit/s, and 10bit A/D and D/A convertors that operate at 40MHz.
This article was originally published on Electronicstalk on 23 September 2002 at 8.00am (UK)
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The TA35151 IF IC, designed expressly to interface with TC35672, integrates an orthogonal modulator and demodulator with a DC offset function that removes the remaining DC elements in AC.
On receiving a signal from an RF IC, it executes orthogonal modulation and demodulation and transmits the signal to the baseband LSI.
TA35151 processes analogue signals fast, with high accuracy.
In order to cover an optimised range of signals, both received and transmitted, it enables auto gain control of the amplifier to achieve reception exceeding 70dB and transmission of over 40dB.
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The chipset is designed to support the Card Bus interface and integration in PCMCIA-based applications, such as PCI cards, access points, PCs and PDAs.
The chipset's interoperability is secured by full conformity with the Wi-Fi specification.
The industry trend of wireless networks in PCs is to support transmission and reception of broadband signals.
This same capability is also being introduced into components of home networks, DVD players and high definition TVs.
The new chipset promotes this trend and supports high-speed processing and handling of analogue and digital sources combined with low power operation.
In addition to PC-card based application, the chipset will be integrated into AV products, PCs and PC peripherals.
Toshiba is now completing development of a complete chipset solution by developing an RF IC that includes blocks for a mixer, low-noise amplifier and phase-locked loop (PLL), power amplifier and switch.
The next generation chipset will cover both 5 and 2.4GHz operation, in full conformity to IEEE802.11a and IEEE802.11b, respectively.
Smart antenna and security technologies, such as Temporal Keying Integrity Protocol and the Advanced Encryption Standard, will be introduced in the next-generation chipset, realising an ideal combination of highly secure wireless communication.
The new chipset will also conform to the IEEE802.1x authentication specification.
Both Mini-PCI and PCMCIA-based applications will provide potential markets.
Samples of TC35672 and TA35151 will be available in November 2002 at Y6000 and Y500, respectively.
Mass production will start in March 2003 and reach 100,000 units of each a month in 2003.
The new products will be exhibited at Ceatec Japan 2002, which will be held at Makuhari Messe, Chiba Prefecture, from 1st to 5th October 2002.
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