TCVCXO Specification
Part No. + Packaging: LFTVXO076345Reel
Customer Part:
Description
The IQXT-316-3 uses ASIC technology and is designed to meet
the short and medium term stability requirements of packet
network synchronisation for Small Cells.
Model
IQXT-316-3
Model Issue number
1
Outline (mm)
Frequency Parameters
Frequency
30.720MHz
Frequency Tolerance
Tolerance Condition
Frequency Stability
±1.00ppm
@ 25°C ±1°C & VC=1.5V
±0.25ppm
Operating Temperature Range
-5.00 to 85.00°C
In‐service Short-term Frequency Stability (over any 24-hr
timeslot @ fixed supply voltage and load):
50 to 70°C: ±80ppb max
15 to 85°C: ±100ppb max
-5 to 85°C: ±250ppb max
Ageing (@ 25°C):
±20ppb max/day
±200ppb max/month
±1ppm max/year
±2ppm max over 3yrs
Temperature Rate of Change (maximum rate of change of
temperature condition for guaranteed stability specifications):
1°C/min max
Acceleration Sensitivity (gamma vector of all 3 axes from 30 to
1500Hz): Typically 2ppb/G max
Supply Voltage Variation (±2% change @ 25°C, measurement
referenced to frequency observed @ nominal Vs): ±10ppb typ
Load Variation (±1pF change @ 25°C, measurement
referenced to frequency observed @ nominal load): ±10ppb
typ
Reflow Variation (pre to post reflow ΔF, measured after 1hr
recovery @ 25°C): ±1ppm max
Note: The characteristics of the oscillator may be temporarily
affected by the processes of assembly and soldering. The
in-service short term frequency stability specification applies
after 48hrs continuous operation and after the first excursion
over the temperature range. Nominal conditions apply unless
otherwise stated.
Electrical Parameters
3.3V ±5%
Supply Voltage
Current Draw
7.000mA
Absolute Maximum Ratings:
Supply Voltage (Vs): -0.5V to 7V
Control Voltage (VC): -0.5V to 9V
All other inputs: -0.5V to Vs+0.5V
Power Dissipation: 100mW max
Junction Temperature: 150°C max
Note: Operating beyond these limits may result in change or
permanent damage to the oscillator.
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 4 Aug 21 23:49 using Part Data Sheet V1.0018
Email: info@iqdfrequencyproducts.com
Web: www.iqdfrequencyproducts.com
Page 1 of 3
TCVCXO Specification
Part No. + Packaging: LFTVXO076345Reel
Customer Part:
Frequency Adjustment
Pulling
±7ppm min to ±12ppm max
Control Voltage
1.5V ±1.0V
Input Impedance
100kΩ min
Linearity (deviation from straight line curve fit): 1% max
Frequency Tuning Slope: Positive
Modulation Bandwidth: 1Hz min
Note: Pulling referenced to frequency @ VC=1.5V
Output Details
HCMOS
Output Compatibility
Drive Capability
15pF
Rise and Fall Time
8.0ns max
45/55%
Duty Cycle
Output Voltage Levels:
Output Low (VoL): 10%Vs max
Output High (VoH): 90%Vs min
Start Up Time (amplitude within 90% of specified output level):
15ms max
Temperature Sensor Output (pad 3):
Vtemp (@ 25°C): 1.76V typ
Slope Option: -2.1mV/°C typ
Resistive Load: 100kΩ min
Capacitive Load: 30pF max
Output Impedance (@ 25°C): 1kΩ typ
Sensor Linearity: 1.5% typ
Output Control
Tri-State Mode:
Logic '0' (20%Vs max) to pad 6 disables the oscillator output,
the output goes to a high impedance state.
Logic '1' (60%Vs min) or no connection to pad 6 enables the
oscillator output.
Note: The tri-state control (enable) input pad has an internal
100kΩ pull up resistor which allows it to be left unconnected if
not used. When in tri-state mode, the output stage is disabled,
but the oscillator and compensation circuit are still active
(Current Consumption: 2mA typ).
Output Enable Time: 100μs max
Noise Parameters
Phase Noise @ 25°C (typ):
-65dBc/Hz @ 1Hz
-95dBc/Hz @ 10Hz
-125dBc/Hz @ 100Hz
-143dBc/Hz @ 1kHz
-149dBc/Hz @ 10kHz
-152dBc/Hz @ 100kHz
-155dBc/Hz @ 1MHz
Phase Jitter (12kHz to 5MHz): 300fs RMS typ
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 4 Aug 21 23:49 using Part Data Sheet V1.0018
Email: info@iqdfrequencyproducts.com
Web: www.iqdfrequencyproducts.com
Page 2 of 3
TCVCXO Specification
Part No. + Packaging: LFTVXO076345Reel
Customer Part:
Environmental Parameters
Low Temperature Storage: IEC 60068-2-01, Test Ab: 1000hrs
@ -55°C.
High Temperature Storage: IEC 60068-2-02, Test Bb: 1000hrs
@ 150°C.
Mechanical Shock: JESD22-B104: 1500G, 0.5ms duration, 5
pulses in each of 6 directions.
Vibration: JESD22-B103: 20G peak acceleration for 4hrs in
each of the 3 orientations, tested from 60-2000Hz, 12hrs total.
High Temperature Operating Life (HTOL): JESD22-A108:
1008hrs @ 125°C.
Thermal Cycling: JESD22-A104: 500 temperature cycles, -55
to 125°C.
Solderability: JESD22-B102, Method 1, Condition E: 260°C for
5secs (preconditioning: 150°C, 16hrs).
Resistance to Soldering Heat: IPC/JEDEC J-STD-020: 3
reflow cycles (peak temperature 260°C).
Humidity: JESD22-A101: After 1008hrs @ 85°C ±2°C, 85%
RH non-condensing (preconditioning: 3 reflow cycles @ peak
temperature 260°C).
Ageing: MIL-PRF-55310: 1008hrs @ 85°C (preconditioning: 3
reflow cycles @ peak temperature 260°C).
Manufacturing Details
Maximum Process Temperature: 260°C (30secs max)
RoHS Terminations
RoHS Reflow Temp
260°C max for 30secs max
Compliance
RoHS Status (2015/863/EU)
REACh Status
MSL Rating (JDEC-STD-033):
Compliant
Compliant
1
Packaging Details
Pack Style: Reel
Pack Size: 500
Tape & reel in accordance with EIA-481-D
Alternative packing option available
Sales Office Contact Details:
UK: +44 (0)1460 270200
France: 0800 901 383
Germany: 0800 1808 443
USA: +1.760.318.2824
Printed on 4 Aug 21 23:49 using Part Data Sheet V1.0018
Email: info@iqdfrequencyproducts.com
Web: www.iqdfrequencyproducts.com
Page 3 of 3
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