New Precision OCXOs provide Ultra Low G-Sensitivity (ULGS) and Low Phase Noise (LPN)

By the usage of self-manufactured noise-optimized 5th overtone SC-cut crystals and noiseminimized electronic circuits KVG’s engineers succeeded in designing new OCXOs what provide beside an exceptional ultra low G-sensitivity (ULGS) and a low phase noise (LPN) and in addition a high frequency stability.

The new 100 MHz OCXOs - O-30-ULGS-100M – have an exceptional good robustness against

vibration – also known as microphony – this is very important for oscillators with good phasenoise, to avoid a significant performance impact due to “vibration-induced” phase-modulation. The dynamic G-sensitivity of the new OCXO is less than 0.1 ppb/g (1 x 10-10/g) for all axes, which means about 100-times better than standard-OCXOs (see also pic 1). In addition the OCXO performs with very good PN-values: a “Noise Floor” for better than -170 dBc/Hz at 100 kHz offset.

At 10 kHz offset the phase-noise is already better than -160 dBc/Hz and near to the carrier O-30-ULGS-100M gives a very good performance with -130 dBc/Hz at 100 Hz offset.

In addition to the excellent G-sensitivity and low phase-noise the O-30-ULGS-100M is

characterized by a very good frequency stability vs. temperature of better than ±100 ppb

(±1 x 10-7) in the temperature-range from -40 ºC to +85 °C.

The long term stability (aging) is typically better than ±1.5 ppm within 10 years. The OCXO

provides a voltage controlled frequency-tuning with a sufficiently large tuning-range. So for the full life-time it is guaranteed that the carrier-frequency could be adjusted to the nominal-frequency, this is crucial for synchronized systems.

These new high-frequency ULGS OCXOs are dedicated for application in Test & Measurement

Systems as well as Medical-industry (e.g. Magnetic Resonance – or Computed Tomography) and reference clock for microwave signal sources or radar systems. Due to the low G sensitivity the hermetically sealed package option is suitable for applications with demanding

environmental requirements (shock, vibration, humidity, dust), as it is requested for

several military or avionic applications.

The oscillators will be delivered in a small hermetically sealed metal can packages either

(36 x 27 x16 mm) for thru-hole mounting

More information

Details

KVG Quartz Crystal Technology GmbH

Keywords

Electronic filters

Associated Trend items

New Precision OCXOs Provide Ultra Low Phase Noise (ULPN) and Low G-Sensitivity (LGS)

By the usage of self-manufactured noise-optimized SC-cut crystals and noise-minimized electronic circuits KVG’s engineers succeeded in designing new OCXOs what provide beside a very high frequency stability an exceptional ULTRA low phase noise (ULPN) and in addition low G-sensitivity (LGS).

For high-frequency crystal oscillators locked to a frequency-reference the phase-noise (PN) in the frequency-range above the PLL-loop bandwidth is particularly important, because phase-noise is determined by the locked oscillator and not by the reference-signal. The new 100 MHz OCXOs - O-30-ULPN-100M – gives a “Noise Floor” for better than -185 dBc/Hz at 100 kHz offset...

More information

KVG’s new small size clock oscillator for extended industrial temperature range

KVG launches two new product series XO-25000E and XO-32000E for extended industrial temperature range with very small dimensions. For these crystal clock oscillators (XO) 3 different temperature ranges are available, which are not covered through usual standard products; following temperature ranges and stability-groups are available:

• -55 bis +125 °C ±50ppm • -40 bis +125+°C ±50ppm • -40 bis +105 °C ±40ppm This includes stability vs. temperature range, adjustment tolerance @ 25°C, stability vs. 5% supply voltage change and 5% load change and aging for the first year. Frequencies are available between 1.25 MHz and 100 MHz, with standard frequencies like 10 MHz, 20 MHz, 26 MHz, 50 MHz or 1...

More information

SMD TCXOs in 7 x 5 mm package up to 100 MHz

Standard 7 x 5 mm TCXOs are available up to about 30 MHz only. Few manufacturers offer up to about 40 MHz. KVG’s new (VC)TCXOs series TO-75000 offers frequencies starting from 40 MHz going up to 100 MHz.

Even tight frequency stability options of ±0.5 ppm vs. an operating temperature range of -30 °C to +85 °C are possible. The typical phase noise of a 50 MHz TO-75000 at 100 Hz carrier offset is below -105 dBc/Hz. The typical „Noise Floor“ at 100 kHz is below 150 dBc/Hz. The supply voltage can be selected between +2.5 V or +3.3 V. The output options are True Sin...

More information

Compare

Remove all

Compare up to 10 products