Wireless keyless entry and tyre pressure monitoring systems based on SAW resonators are catching on in a big way in automotive engineering. Although many applications require ISM bandwidth only momentarily, mutual interference can result if different signals are transmitted simultaneously on the same frequency.
To combat this Epcos developed a two-in-one SAW resonator; the R770 (433,81/434,06 MHz) and R771 (314,875/315,125 MHz). Each type contains two electrically independent, high-precision single-port SAW resonators in a QCC8C SMD ceramic package with a footprint of 5 x 5 mm. Both single-port resonators are implemented on the same chip and fabricated simultaneously in an identical process. This results in superior synchronism against temperature and in frequency response. Almost any desired frequency difference between the two resonators can be designed. In the send oscillator, the two resonators are alternately connected to the oscillator circuit. Switching is done via PIN diodes.
Antennas to meet all connectivity requirements Electrocomp
Telecoms, Datacoms, Wireless, IoT
Kyocera AVX RF antennas meet today’s connectivity demands in the LTE, Wi-Fi, Bluetooth, GNSS, and ISM wireless bands, available in surface mount, patch or external configurations.
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he HYPB series from Hammond is a hygienic type 4X stainless steel pushbutton enclosure designed for use in environments where regular high temperature, high-pressure washdowns are required.
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Passive Components
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Analogue, Mixed Signal, LSI
The NJU9103 AFE from Nisshinbo is a tiny analogue front end, with a 16-bit resolution ADC and up to 512 x signal amplification from the programmable gain amplifier.
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Passive Components
Panasonic Industries’ SMT capacitor series all benefit from the longest lifetime plus the lowest ESR values currently available.
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Passive Components
TDK Corporation has expanded its family of flat wire inductors with the high-performance EPCOS ERUC23 coupled inductor series.
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The design offers better impact resistance, and all sizes have the additional feature of shelves moulded into the base, fitted with threaded inserts to house a PCB or other electrical equipment.
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Telecoms, Datacoms, Wireless, IoT
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Read more...NTC thermistors for laser diode temperature measurement Electrocomp
Opto-Electronics
These bondable NTC thermistors can be mounted with Au wire bonding inside the package for highly accurate temperature detection of laser diodes used for optical communication.
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