Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.com
Q-TECH
CORPORATION
QPDS-0009 (Revision F, April 2013 )(ECO# 10834)
HIGH STABILITY DIGITAL TCXO
SURFACE MOUNT CRYSTAL OSCILLATORS
3.3 to 5Vdc - 1MHz to 125MHz
2 of 7
Parameters QT3103 or QT3105
Output Freq. Range (Fo)
1MHz 125MHz
Supply Voltage (Vdd) +3.3Vdc ± 5% or +5Vdc ± 5%
Maximum Applied Voltage (Vdd max.) +5.5Vdc
Nominal Tolerance ±0.3ppm
Frequency Stability (∆F/∆T) See Option codes
Frequency Stability vs. Load Variation ±0.2ppm
Frequency Stability vs.
Voltage Supply Variation
±0.2ppm
Operating Temp. (Topr) See Option codes
Storage Temp. (Tsto) -62ºC to + 125ºC
Operating Supply Current (Idd)
8mA (No Load) at 3.3Vdc (10MHz)
14mA (No Load) at 5.0Vdc (10MHz)
Output Amplitude or Power
+3.3Vdc
High (min.): Vcc -10%
Low (max.): Gnd +10%
+5Vdc
High (min.): 3.3V-10%
Low (max.): Gnd+10%
Output Load 10k//15pF
Start-up Time
10ms max.
Phase Noise at 25ºC (typ.)
at 10MHz
(See Note 4)
10Hz -90dBc/Hz
100Hz -120dBc/Hz
1kHz -135dBc/Hz
10kHz -150dBc/Hz
100kHz -155dBc/Hz
Integrated Phase Jitter RMS
(12kHz to 20MHz) typ.
(See Note 4)
1ps
Aging (at 70ºC) ± 5ppm max. 10 years
• Supply voltage +3.3Vdc to +5Vdc
• Phase Noise and Jitter built to specification
including static and vibration.
• Low supply current
• QCI tests
• Tight frequency stability versus temperature,
supply voltage, and load variations
• Low g-sensitivity and low phase noise
• Low spurious (see note 3)
• Low frequency aging, Allan Variance
• High-shock resistant
Notes:
1. The output level is determined by the supply
voltage, load, and package size.
2. Typical amplitude stability over temperature is
±10% or less.
3. Typical spurious level is better than -100dBc
over the spectrum of 100kHz to 1GHz.
4. Guaranteed by design, can be tested by customer
request.
5. TCXO with frequencies higher than 50MHz,
have amplitude more sensitive to load and it may
be lower than standard.
Other Design and Test Options
Electrical Characteristics
Standard Frequencies Below Available With Faster Delivery
Part Number Frequency Voltage Temperature Stability
MCM5273 27.480MHz 27.480MHz 3.3V 40ºC to +85ºC ±0.3ppm
MCM5281 1 10.000MHz 10.000MHz 3.3V 40ºC to +85ºC ±0.3ppm
QT3103CT 10.001355MHz 10.001355MHz 3.3V 40ºC to +85ºC ±1ppm
QT3103CT 15.050MHz 15.050MH 3.3V 40ºC to +85ºC ±1ppm
QT3103CT 40.000MHz 40.000MHz 3.3V 40ºC to +85ºC ±1ppm
QT3103CT 80.000MHz 80.000MHz 3.3V 40ºC to +85ºC ±1ppm
QT3103CT 100.000MHz 10.000MHz 3.3V 40ºC to +85ºC ±1ppm
QT3103CU 25.000MHz 25.000MHz 3.3V 40ºC to +85ºC ±0.3ppm
QT3103CU 30.000MHz 30.000MHz 3.3V 40ºC to +85ºC ±0.3ppm
QT3103CV 16.384MHz 16.384MHz 3.3V 55ºC to +125ºC ±1ppm
QT3105CV 16.000MHz 16.000MHz 5.0V 55ºC to +125ºC ±1ppm
QT3105CV 20.000MHz 20.000MHz 5.0V 55ºC to +125ºC ±1ppm
QT3105CV 32.000MHz 32.000MHz 5.0V 55ºC to +125ºC ±1ppm
Note: Custom frequencies are available but require an NRE and a longer lead time.
(5 pages)
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