LFTVXO070168
VCTCXO, GPS, 19.2 MHz, 0.5 ppm, Clipped Sinewave, 2.85 V, SMD, 2mm x 1.6mm, IQXT-270
- Manufacturer: IQD FREQUENCY PRODUCTS
- Product type: Voltage Controlled - VC-TCXO Oscillators
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 0.966 € |
| Current stock | 10+ |
| Lead time | 30 days |
**TCVCXO Specification**
_Part No. + Packaging:_ _**LFTVXO070168Cutt**_
## **Description**
- The IQXT-270-10 Temperature Compensated Crystal Oscillator (TCXO) employs an analogue ASIC for the oscillator and a high order temperature compensation circuit in a 2.0 x 1.6mm size package.
- Model IQXT-270-10 Model Issue number 1
## **Frequency Parameters**
- Frequency
- Frequency Tolerance Frequency Stability
19.20MHz
- ±1.00ppm
- ±0.50ppm
- Operating Temperature Range -30.00 to 85.00°C
- ~~=~~ Ageing ±0.7ppm max per year at 25°C
- ~~a~~ Frequency Tolerance: Offset from nominal frequency measured at 25˚C ±2˚C.
- ~~a~~ Reflow Shift (two consecutive reflows as per profile after 1 hour relaxation at 25°C): ±1ppm max
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- ~~a~~ Frequency Stability: Referenced to the midpoint between minimum and maximum frequency value over the specified 2.05+0.10 Pad
- temperature range. Control voltage set to midpoint of control = 1.
- voltage (note 1).
- Frequency Slope (minimum of one frequency reading every 2°C, over -10 to 60°C. Control voltage set to midpoint of control voltage, note 1): 0.05ppm/°C max
- Frequency drift (calculated from frequency slope with temperature varied at a maximum of 1.92°C/min (0.032°C/s) over -10°C to 60°C, note 5): 1.6ppb/sec max
- Frequency Slope (minimum of one frequency reading every 2°C, over -30°C to -85°C. Control voltage set to midpoint of control voltage, note 1): 0.1ppm/°C max Frequency drift (calculated from frequency slope with temperature varied at a maximum of 0.96°C/min (0.016°C/s) over -30°C to 85°C, note 5): 1.6ppb/sec max
- Small thermal cycle frequency slope (measured at 0.5°C intervals over any 5°C heating and 5°C cooling cycle, at a minimum rate of 1°C/minute within the operating temperature range, note 6): 50ppb/°C max
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- Small thermal cycle hysteresis (difference in frequency measurements over any 5°C heating and 5°C cooling cycle, at a minimum rate of 1°C/minute within the operating temperature range): 50ppb pk-pk max
- Supply Voltage Variation (±5% change at 25°C): ±0.1ppm max Load Variation (±10% change at 25°C): ±0.2ppm max
## **Electrical Parameters**
Supply Voltage 2.85V ±0.15V
- Current Draw 1.50mA
- Supply Current (at Vs max - note 2)
## **Frequency Adjustment**
- Pulling ±15.6ppm to ±24ppm Control Voltage 1.4V ±1.0V Input Impedence 500kΩ min
- Control voltage range: the nominal control voltage value is midway between the minimum and maximum. Voltage control should not exceed the supply voltage +0.2V or GND.
- Linearity (deviation from straight line curve fit): 10% max
## **Sales Office Contact Details:**
UK: +44 (0)1460 270200 Germany: 0800 1808 443
France: 0800 901 383 USA: +1.760.318.2824
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Page 1 of 3
Printed on 26 May 16 17:44 using Part Data Sheet V1.00014
**TCVCXO Specification** _Part No. + Packaging:_ _**LFTVXO070168Cutt**_
## **Output Details**
Output Compatability Clipped Sine Drive Capability 10kΩ//10pF ±10% Output: DC coupled (note 3)
Output Voltage Level (at Vs min - note 2): 0.8V pk-pk min
## **Noise Parameters**
- Phase Noise (typ @ 25˚C): -64dBc/Hz @ 1Hz
- -93dBc/Hz @ 10Hz
- -118dBc/Hz @ 100Hz
- -137dBc/Hz @ 1kHz
- -149dBc/Hz @ 10kHz
- -151dBc/Hz @ 100kHz Phase Noise (max @ 25˚C):
- -57dBc/Hz @ 1Hz
- -86dBc/Hz @ 10Hz
- -111dBc/Hz @ 100Hz
- -133dBc/Hz @ 1kHz
-144dBc/Hz @ 10kHz
- -148dBc/Hz @ 100kHz
## **Environmental Parameters**
- Shock: MIL-STD-202 M213 (note 4): Half sine-wave acceleration of 3000G peak amplitude, duration 0.3ms, velocity 12.3ft/s. Moisture Resistance: MIL-STD-202 M106g (note 4): 1000 hours at 85°C, 85% relative humidity. Biased. Thermal Cycling: JESD22 Method JA-104C (note 4): 1000 temperature cycles, where each cycle consists of a 25 minutes soak time at -40°C followed by a 25 minute soak time at 85°C, with a 60 second maximum transition time between temperatures. Air to air transition.
- Vibration: JESD22-B103-B (also see note 4): 10G peak acceleration for 20 minutes 12 cycles in each of the 3 orientations, swept from 10-2000Hz.
Storage Temperature Range: -40 to 85°C
## **Manufacturing Details**
- Maximum Process Temperature: 260˚C (40secs max)
- Note 1: Parts should be shielded from drafts causing unexpected thermal gradients. Temperature changes due to ambient air currents can lead to short term frequency drift.
- Note 2: Specified for the load stated in Output Details above, at 25°C.
- Note 3: External AC coupling capacitor required; 1nF or greater recommended.
- Note 4: Frequency shift of ±1ppm max after environmental conditions.
- Note 5: Frequency drift rate is calculated from the equation ppb/s=°C/s x ppb/°C
- Note 6: Discard the first 0.5°C interval of each heating and cooling cycle.
## **Compliance**
RoHS Status (2011/65/EU) Compliant REACh Status Compliant MSL Rating (JDEC-STD-033): Not Applicable
## **Sales Office Contact Details:**
UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Page 2 of 3
Printed on 26 May 16 17:44 using Part Data Sheet V1.00014
**TCVCXO Specification** _Part No. + Packaging:_ _**LFTVXO070168Cutt**_
## **Packaging Details**
Pack Style: Cutt In tape, cut from a reel Pack Size: 100
_Alternative packing option available_
## **Sales Office Contact Details:**
UK: +44 (0)1460 270200 Germany: 0800 1808 443
France: 0800 901 383 USA: +1.760.318.2824
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Page 3 of 3
Printed on 26 May 16 17:44 using Part Data Sheet V1.00014
Updated at February 9, 2023
IQD Frequency Products is a recognized market leader in the frequency control and specialized timing sector. Known for delivering highly reliable and precise solutions, the company serves a broad spectrum of applications ranging from commercial-grade electronics to high-reliability industrial and automotive systems. Their commitment to quality is underscored by stringent manufacturing and testing standards, including ISO 9001 and automotive-grade certifications such as AEC-Q200. The comprehensive selection of IQD components focuses primarily on foundational timing devices, notably an extensive range of quartz crystals and standard clock oscillators. These core components provide the stable and accurate frequency generation required for diverse circuit designs, microcontrollers, and communication interfaces. Available in a variety of frequencies, tolerances, and packaging options, these crystals and oscillators form the reliable backbone of countless digital and RF systems. For more demanding environments that require enhanced precision, the portfolio also features specialized oscillator configurations. This includes advanced Temperature Compensated (TCXO) and Voltage Controlled (VC-TCXO) oscillators. These highly engineered timing solutions are designed to maintain exceptional frequency stability across fluctuating temperatures and varying operational conditions, making them ideal for telecommunications, networking infrastructure, and precision instrumentation.
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