Product category:
Communications ICs (Wireless)
News Release from: Oki Electric | Subject: ML6190A
Edited by the Electronicstalk Editorial
Team on 24 October 2003
Time-code receiver cuts consumption
The ML6190A is the industry's first long-wave time-code receiver based on SOI-CMOS technology.
The ML6190A is the industry's first long-wave time-code receiver based on SOI-CMOS (silicon-on-insulator complementary-metal-oxide-semiconductor) technology By using fully depleted SOI-CMOS technology, the chip realises high sensitivity radio reception functionality, together with a one third or better reduction in power consumption compared with the existing time-code receivers
This article was originally published on Electronicstalk on 10 Apr 2002 at 8.00am (UK)
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Oki has already started sample shipment, and is planning for volume shipment to commence December 2003.
"Oki succeeded in volume production of watch-use LSIs using the SOI-CMOS technology last year, and we have now become the industry's first provider of long-wave time-code receivers using this technology", said Masao Sasaki, Manager of SOI Business Development in Silicon Solutions Company at Oki Electric.
"As a leading vendor in SOI technology, we will continue to offer ultralow-power-consumption LSIs, to meet our customers' requirements".
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The ML6190A uses fully depleted SOI-CMOS technology, which involves forming CMOS on an SOI substrate in which an insulated film is buried, instead of a silicon substrate.
As transistors are created on an insulation film, the chip consumes quite low current, which in turn, reduces the concomitant thermal noise.
Noise transmitted from a substrate is also reduced, as transistors are completely isolated from the substrate by an insulation film.
This mechanism realises high sensitivity.
As the current drain is one third or less than that of existing time code receivers, the ML6190A is ideal for small, portable devices.
It is also applicable for time correction of audiovisual equipment, home appliances, PCs and car clocks.
SOI-CMOS technology also excels in the level of integration of digital and analogue circuits into a chip, because transistors are completely isolated from a substrate by an insulation film, which reduces the noise transmitted to analogue circuits from digital circuits via the substrate.
Based on this technology, Oki plans to integrate a receiver circuit with a decoder circuit, a driver circuit, or a watch-use LSI and enhance the product line-up.
The ML6190A is an RF receiver for time-code signals transmitted over long-wave frequencies ranging from 40 to 100kHz.
Voltage sensitivity is 0.7uV RMS and the input voltage range is from 0.7uV RMS to 100mV RMS.
The current consumption is 17uA, which is between 10 and 33% of that of bipolar devices.
By using two connected crystals, the ML6190A receives two different radio frequencies.
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