Tight stability TCXO

November 14, 2016 // By Graham Prophet
To ensure a smooth frequency slope, IQD's new analogue ASIC based IQXT-274 Temperature Compensated Crystal Oscillator (TCXO) is tested using one frequency reading every 2 degrees C over the full operating temperature range. This, combined with a high order compensation circuit, delivers a frequency stability as tight as ±0.5 ppm over -40 to +85 degrees C.

Housed in a miniature 3.2 x 2.5 x 1.1 mm hermetically sealed ceramic package, the TCXO has phase noise performance of -145 dBc/Hz. The range is available in two options: TCXO & VCTCXO both with a frequency range of 10 to 40 MHz with a clipped sinewave output and a maximum power consumption of 2 mA. The IQXT-274 has a supply voltage range of 2.4V to 3.7V and the VCTCXO has a pullablity of between ±6 ppm to ±50 ppm.


Typical applications include Bluetooth, GPS/GNSS, Portable Navigation Devices, Wi-Fi, WiMax and WLAN.


IQD; www.iqdfrequencyproducts.com