TCVCXO Specification
Part No. + Packaging:
LFTVXO070186Reel
Description
The IQXT-260-17 employs an analogue ASIC for the oscillator
and a high-order temperature compensation circuit in a 2.5 x
2.0mm size package.
Model
IQXT-260-17
Model Issue number
2
Frequency Parameters
Frequency
Frequency Tolerance
Tolerance Condition
Frequency Stability
19.20MHz
±1.00ppm
@ 25°C ±2°C
±
0.50ppm
Operating Temperature Range
-30.00 to 85.00°C
Ageing
±0.7ppm max over 1yr @ 25°C
Frequency Stability: TA varied over operating temperature
range, measurement referenced to frequency observed with
Fref=(Fmax+Fmin)/2, Vs=1.8V, VC=0.9V and
load=10kΩ//10pF.
Frequency Slope (minimum of one frequency reading every
2°C and VC=0.9V):
-10°C to 60°C: 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): 1.6ppb/sec max
Frequency Slope (minimum of one frequency reading every
2°C and VC=0.9V):
-30°C to 85°C: 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): 1.6ppb/sec max
Note: Frequency Drift rate is calculated from the equation
ppb/s=°C/s x ppb/°C.
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): 50ppb/°C max
(Note: Discard the first 0.5°C interval of each heating and
cooling cycle.)
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 @ 25°C): ±0.1ppm max
Load Variation (±10% change @ 25°C): ±0.2ppm max
Reflow Variation (after two consecutive reflows as per profile
shown and 1hr recovery @ 25°C): ±1ppm max
Note: Parts should be shielded from drafts causing unexpected
thermal gradients. Temperature changes due to ambient air
currents can lead to short term frequency drift.
Electrical Parameters
Outline (mm)
Pb-Free Reflow
1.8V ±5%
Supply Voltage
Current Draw
1.500mA
Supply Current (@ TA=25°C, Vs max and load=10kΩ//10pF):
1.5mA 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 2
Printed on 3 Aug 18 12:45 using Part Data Sheet V1.00015
TCVCXO Specification
Part No. + Packaging:
LFTVXO070186Reel
Frequency Adjustment
Pulling
Control Voltage
±15.6ppm to ±24.0ppm
0.9V ±0.6V
Input Impedance
500kΩ
Input Impedance: Measured between control voltage and
GND pins.
Linearity (deviation from a straight line curve fit): 20% max
Output Details
Clipped Sine
Output Compatibility
Drive Capability
10kΩ//10pF ±10%
Output Voltage Level (@ TA=25°C, Vs min and
load=10kΩ//10pF): 0.8V pk-pk min
Start Up Time (frequency within ±0.5ppm of steady state
frequency): 0.5ms max
Output: DC coupled
Note: AC-coupled output requires an external capacitor,
≥1nF
recommended.
Noise Parameters
Phase Noise @ 25°C (max):
-86dBc/Hz @ 10Hz
-110dBc/Hz @ 100Hz
-137dBc/Hz @ 1kHz
-143dBc/Hz @ 10kHz
-150dBc/Hz @ 100kHz
Harmonics: -5dBc max
Environmental Parameters
Storage Temperature Range: -40 to 85°C
Shock: MIL-STD-202 M213: Half sine wave acceleration of
3000G peak amplitude, duration 0.3ms, velocity 12.3ft/s.
Vibration: JESD22-B103-B: 10G peak acceleration for 20mins,
12 cycles in each of the 3 orientations, tested from
10-2000Hz.
Moisture Resistance: MIL-STD-202 M106g: 1000hrs @ 85°C,
85% RH, biased.
Thermal Cycling: JESD22 Method JA-104C: 1000 temperature
cycles, where each cycle consists of a 25mins soak time @
-40°C followed by a 25mins soak time @ 85°C, with a 60secs
maximum transition time between temperatures, air to air
transition.
Note: Frequency shift
≤1ppm
after environmental conditions.
Manufacturing Details
Maximum Process Temperature: 260°C (40secs max)
Compliance
RoHS Status (2011/65/EU)
REACh Status
MSL Rating (JDEC-STD-033):
Packaging Details
Compliant
Compliant
Not Applicable
Pack Style: Reel
Pack Size: 3,000
Tape & reel in accordance with EIA-481-D
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 2 of 2
Printed on 3 Aug 18 12:45 using Part Data Sheet V1.00015
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