Two quartz crystals from IQD are stable at industrial temperature range

Quartz crystals from IQD are able to operate in the fundamental mode, up to 200MHz.

The miniature, high-frequency fundamental quartz crystals are housed in hermetically sealed packages. The IQXC-153 is in a 2.5 x 2.0 x 0.6mm ceramic four-pad package, and the IQXC-153 is in a 2.0 x 1.6 x 0.5mm ceramic four-pad package. On each, two of the pads are grounded to the metal lid to improve the EMI. In the higher frequency range, 70 to 200MHz, the frequency tolerance can be as low as ±30ppm, reports the company, and the stability is also ±30ppm over the full industrial operating temperature range of -40 to +85 degrees C. Capacitance load ranges from eight to 30pF.

The IQXC-152 and IQXC-153 enables design engineers to use higher frequencies in the fundamental mode which eliminates the need to use a PLL or a tank circuit picking up the third, fifth or seven harmonics. A higher starting frequency can also be used when looking to generate for example 2.4GHz which cuts down on the jitter/phase noise in the circuit.

Packaging options are tape and reel or cut tape.

IQD has over 40 years’ experience in the manufacture of frequency products, and is part of the Würth Elektronik eiSos group. IQD serves customers in over 80 countries, offering one of the most comprehensive frequency product ranges available, from low cost commercial grade product to that used in high reliability industrial and automotive applications including: quartz crystals, clock oscillators, AEC-Q200/TS16949 crystals and oscillators, VCXOs, TCXOs, OCXOs, GPS Disciplined OCXOs, and rubidium oscillators.

IQD offers customers a range of engineering support services including application support, custom product design, sample development, electrical testing and screening, frequency/temperature testing, accelerated ageing, circuit characterisation and MTIE/TDEV testing. IQD’s products are specified by manufacturers in the aerospace, automotive, communications, computing, consumer and industrial industries throughout the world.