Frequency

Miniature TCXO models suited to GPS applications

13th October 2016
Alice Matthews
0
Datasheets

The latest TCXO design launched by IQD delivers two models housed in miniature 1.6x1.2x0.45mm hermetically sealed ceramic packages that are amongst the smallest available on the market. The IQXT-350 series is a standard TCXO (Temperature Compensated Crystal Oscillator).

The IQXT-351 series version offers full VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator) functionality.

Both models are initially available in four standard frequencies; 19.2, 26.0, 38.4 and 52.0MHz, all with a frequency tolerance of ±1.5ppm and frequency stability of ±0.5ppm. Both series operates at 1.8V with a maximum current consumption of 1.7mA and a clipped sinewave output with 10kΩ//10pF drive capability.

The 26.0 and 52.0MHz parts are available with an operating temperature range of -40° to 85°C whilst the 19.2 and 38.4MHz operate over -30°C to 85°C. Start-up time from the power mode is only 2ms max whilst the IQXT-351 (VCTCXO) series has a pullability of between ±8ppm to ±13ppm. Harmonic distortion is -5.0dBc max and typical phase noise is -135dBc/Hz at 1kHz with ageing at ±1ppm max per year.

The low power and miniature footprint of both designs makes these new models ideal for GPS, IoT, Wearables, Wi-Max and Wireless Communications applications.

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