IQD - Quartz Crystal, Clock Oscillator, TCXO, VCTCXO, VCXO, OCXO, GPS Disciplined OCXO, Rubidium Oscillator

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How a few pico farads can ruin your timing accuracy

Quartz crystals are widely used in electronic applications because of their accurate frequency. Thanks to IoT, 5G and Industry 4.0, the demand for highly precise clock frequencies is increasing dramatically. However, by making a few mistakes during the design-in process the entire frequency accuracy of the quartz crystal can be ruined. This blog will focus on the influence of the load capacitance on the frequency of the crystal. In the last blog, we looked in more detail at the selection of the right capacitors for the crystal. With all the information in mind you may ask yourself, why is all of this so important? After all, we are talking about just a few picofarads. What influence would… Read Full Blog Post

Small Low Height SMD Quartz Crystal

3.2 x 2.5mm hermetically sealed ceramic
4-pad package only 0.8mm high
Automotive version available to AEC-Q200/TS16949 with PPAP levels 1 to 5
Stabilities down to ±10ppm over -40 to +85°C or ±15ppm over -40 to +125°C for automotive applications
Very wide frequency range from 10 to 200MHz
Typical applications: ABS sensors, engine control Units (ECU), ethernet, home automation & entertainment, process management systems, smart lighting, tyre pressure monitoring systems (TPMS) and Wi-Fi

Smallest 32.768kHz clock oscillator

1.6 x 1.2 x 0.7mm hermetically sealed ceramic package
Only 30µA and with a standby current as low as 3µA
Delivers better temperature characteristic than standard 32.768kHz tuning fork crystal based oscillators due to the use of an AT-cut crystal normally found in higher frequency oscillators
Start-up time only 7ms at 3.3V with a rise and fall time of 200ns
CMOS output with supply voltage 1.8V
Typical applications: battery management systems, communication modules and systems (Bluetooth, Wi-Fi, Wireless LAN & Zigbee), LCD lighting systems and smart meters (AMR)

Low Jitter High Frequency VCXO

Excellent low phase jitter performance between 0.05 to 0.3ps RMS max over 12kHz to 20MHz
Very wide frequency range from 1 to 800MHz
Hermetically sealed 7.0 x 5.0mm ceramic 6-pad package
Choice of three outputs: HCMOS, LVPECL and LVDS
Primarily designed for applications such as DSL/ADSL, ethernet (10G/40G/100G), Femto & Pico cells, SONET/SDH and video broadcasting

Ultra Tight Stability TCXO

Ultra tight stability at ±0.14ppm over -40 to +85°C
Housed in a 7.0 x 5.0mm ceramic package
Phase noise performance of -148dBC/Hz at 10kHz offset and short term stability is down at 5E-10/S
Frequency range 10 to 50MHz
Voltage control options of ±5ppm to ±10ppm or ±10ppm to ±15ppm
Typical applications include Femto & Micro base stations, GPS/GNSS, IP networking, RF & Wi-Fi modules, SONET/SDH and test & measurement
MTIE/TDEV testing available

Ultra Miniature TCXO

1.6 x 1.2 x 0.45mm hermetically sealed ceramic package
IQXT-350 series is a standard TCXO whilst the IQXT-351 series version offers full VCTCXO functionality.
Frequencies; 26.0 and 52.0MHz
Tolerance of ±1.5ppm and frequency stability of ±0.5ppm
Typical applications include GPS, IoT, Wearables, Wi-Max and Wireless Communications applications

Ultra Miniature Low Power VCTCXO

2.5 x 2.0mm 6-pad ceramic package
Current consumption 2mA; typical standby current on enable/disable version only ‹0.01µA - ideal for battery operated equipment
Analogue ASIC with high order temperature compensation circuit provides a smoother signal
Stabilities down to ±0.50ppm over -40 to +85°C
Frequency range from 10 to 52MHz
Typical applications include Ethernet, GPS, Portable Navigation Devices (PND), Wi-Fi and WiMax/WLAN

Ultra Miniature OCXO only 9.7 x 7.5mm

Housed in a 4-pad plastic package with a fibre glass base measuring only 9.7 x 7.5mm
±10ppb stability over -20 to +70°C or ±20ppb over -40 to +85°C
Frequency ageing ‹2ppb per day and maximum of 3ppm over a 10 years
Frequency range from 5 to 50MHz
Primarily designed for applications such as Ethernet switches, Femto & Pico cells, Routers, SONET/SDH, Stratum 3 and SyncE & IEEE188
MTIE/TDEV testing available

Engineering Support Services

Application support for new designs & problem resolution
Sample development for prototypes
Full electrical testing & screening
Crystal test data for electrical modelling by customer (i.e. motional parameters)
Frequency/temperature testing with customer specific ramp-profiles
Product burn-in, heat-soak & accelerated ageing
Full circuit characterisation service
MTIE/TDEV testing

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Technology Partnerships

Statek

IQD is a global authorised distributor for Statek Corporation’s highly specialised photolithographic process based quartz crystals, oscillators and sensors that offer very high environmental performance.

As a previous division of Rakon, IQD maintains a close partnership as a worldwide channel partner supplying Rakon’s specialist high performance oscillators alongside our own range. Rakon’s world leading timing solutions are particularly suitable for synchronising connectivity in telecom and network infrastructure, GPS positioning and satellite applications.

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