Chipset for the home of the future

Toshiba America Electronic Components has announced a new 5GHz chipset that provides the essential components for a broadband wireless LAN conforming to the IEEE 802.11a specification.

Toshiba America Electronic Components (TAEC) has announced a new 5GHz chipset that provides the essential components for a high-speed, broadband wireless local area network (WLAN) conforming to the IEEE 802.11a specification.

The chipset consists of a baseband LSI and intermediate frequency (IF) integrated circuit (IC).

‘Toshiba has developed a 5GHz WLAN solution to address the emerging market of wireless audio and video (A/V) distribution in the home of the future,’ said Farhad Mafie, vice president of the ASSP Business Unit at TAEC.

The baseband LSI chip, designated TC35672, integrates a dedicated circuit that can process data transferred at 54 Bytes/sec, and 10-bit analog-to-digital and digital-to-analog converters that operate at 40MHz. High speed processing and low power consumption are supported by Toshiba’s proprietary TX39 core and power management system.

The IF IC, designated TA35151, was designed specifically to interface with the baseband LSI. It integrates an orthogonal modulator and demodulator with a direct current (DC) offset function that removes the remaining DC elements in alternating current (AC). Upon receiving a signal from a radio frequency (RF) IC, it executes orthogonal modulation and demodulation and transmits the signal to the baseband LSI. It processes analog signals quickly, with high accuracy. To cover an optimised range of signals, both received and transmitted, it enables auto gain control of the amplifier to achieve reception exceeding 70 decibels (dB) and transmission of over 40dB.

The chipset supports the CardBus interface and allows integration of Personal Computer Memory Card International Association (PCMCIA) based devices. The chipset’s interoperability is assured with full conformity to the Wireless Fidelity (Wi-Fi) specification.

Toshiba is also developing an RF IC that includes blocks for a mixer, low noise amplifier and phase-locked loop (PLL), power amplifier and switch.

A next generation chipset will offer both 5GHz and 2.4GHz operation, in full compliance with the IEEE 802.11a and IEEE 802.11b standards, respectively.

The next generation design will sport smart antenna and security technologies, such as the Temporal Keying Integrity Protocol and the Advanced Encryption Standard. And, it will also conform to the IEEE 802.1x authentication specification. It will be targeted at both Mini-PCI and PCMCIA-based applications.

Samples of the TC35672 and TA35151 devices are scheduled to be available in November 2002 at $60.00 per piece in 100-piece quantities for the TC35672 and $5.00 per piece in 100-piece quantities for the TA35151.

Mass production is slated to begin in March 2003 and is expected to rise to 100,000 units of each a month in 2003.