Product category:
Communications ICs (Wireless)
News Release from: Melexis | Subject: TH72016
Edited by the Electronicstalk Editorial
Team on 24 November 2005
PLL-based transmitter sticks to its
frequency
Melexis has extended its line of low-power and low-cost RF ICs with a new transmitter that works in virtually any FSK, ASK or FM system in the 380-450MHz unlicensed frequency bands.
Melexis has extended its line of low-power and low-cost RF ICs with a new transmitter that works in virtually any FSK, ASK or FM system in the 380-450MHz unlicensed frequency bands The TH72016 has an extended operating temperature range of -40 to +125C and clock output to drive a microcontroller making it ideal for automotive applications such as tyre pressure monitoring systems (TPMS) or remote keyless entry (RKE) that require enhanced data timing
This article was originally published on Electronicstalk on 17 Oct 2003 at 8.00am (UK)
Related stories
Driver IC for takes on high-power LEDs
Melexis has developed a new programmable single chip CMOS LED driver for high-power (1W) LEDs.
PLL-based transmitters shrink into MLPs
A new range of low-power radio transmitter chips covering frequencies from 300 to 930MHz are the first devices of their type to be produced in the very tiny micro leadframe package.
The TH72016 comes in a space-saving 10-pin QFN package with a footprint of only 3 x 3mm.
Compared with other solutions on the market, Melexis' ICs do not require external components to set up the PLL loop filter or the VCO.
This enables designers to perfectly match their system requirements to a large scale of coding schemes and propagation ranges.
Further reading
More functionality for LIN interface family
A new family of Local Interconnect Network ICs will allow Melexis customers to reach new levels of effectiveness in LIN system integration.
Integrated pressure sensors for automotive use
A new family of fully integrated and programmable pressure sensor solutions has been introduced by Melexis, designed for harsh automotive duty.
The TH72016 IC accepts battery voltages from 1.9 to 5.5V.
Power consumption ranges from 3.5 to 12.8mA depending on the frequency and power setting.
In standby mode the current consumption is less than 50nA.
The programmable RF transmit power range between -12 and 10dBm allows the designer to adapt the device to specific RF power requirements.
The TH72016 transmitter IC combines flexibility with high levels of circuit complexity.
Compared with a SAW-based solution the PLL-based transmitter offers substantially improved frequency stability.
At the same time it can be easily reconfigured for another output frequency just by changing the crystal frequency.
SAW transmitters, on the other hand, are limited because they are only available for certain operating frequencies.
Dr Andreas Laute, Manager of Melexis' Business Unit Wireless Communication, explains: "The primary goal in the development of all new transmitter, receiver and transceiver products is to simplify design for the RF system engineers".
"We not only want to provide them with superior performance and design flexibility, but we want to do so across all popular nonlicensed RF spectrums and other low-power broadcast formats".
Typical applications for the TH72016 include security systems, home automation, garage door openers, wireless door bells and baby monitors.
The extended operating temperature range of -40 to +125C makes the part ideal for automotive applications.
Melexis also offers corresponding receiver chips to complete the system.
The new TH72016 transmitter IC completes the existing TH720xx family of transmitters.
In quantities of 100,000, cost per unit for the TH72016 is Eur 0.56.
• Melexis: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
