Q-Tech SINE WAVE - Manual (Page 2)

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Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.com
SINE WAVE SOURCES
DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS
5.0 to 15Vdc - 10Hz to 450MHz
Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)
Electrical Characteristics
(*) Frequencies less than 500Hz require an external 1µF AC coupling capacitor at the output pin.
(**) Higher frequencies are available with a Q-Tech custom part number.
Parameters QT901S QT906S QT941S QT957S
Output freq. range (Fo) 10Hz — 1MHz (*) 1MHz — 85MHz (**) 10Hz — 450MHz (*)
Supply voltage (Vdd) +15Vdc ± 5% +5Vdc ± 10%
Maximum Applied Voltage (Vdd max.) +18Vdc -0.5 to +7.0Vdc
Frequency stability (∆F/∆T) See Option codes
Operating temp. (Topr) See Option codes
Storage temp. (Tsto) -62ºC to + 125ºC
Operating supply current (Idd)
20mA max. 40mA max.
20mA typ. at 25MHz
30mA typ. at 50MHz
60mA max.
40mA typ. at 175MHz
Output amplitude or power 1V RMS min.
2V RMS typ.
0dBm min.
+5dBm typ. 1V p-p min. for Fo < 1MHz
0dBm min. for F ≥1MHz
Output Load 1kΩ 50Ω
Internally AC coupled
1kΩ for Fo < 1MHz
50Ω for Fo ≥ 1MHz
Total Harmonic Distortion (THD) or
harmonics
5% max. -20dBc max.
Sub-harmonics -30dBc max.
Start-up time 10ms max.
Phase Noise at 25ºC (typ.) at: 10Hz -70dBc/Hz
100Hz -100dBc/Hz
1kHz -125dBc/Hz
10kHz -140dBc/Hz
100kHz -145dBc/Hz
Integrated Phase Jitter RMS
(12kHz to 20MHz) typ.
1ps
Aging (at 70ºC) ± 5ppm max. first year / ± 2ppm typ. per year thereafter
Sine Wave options are available with a Q-Tech
MCM part number:
• Supply voltage +5Vdc to +18Vdc
• Output power -10dBm to +13dBm into 50Ω
(see note 1)
• Harmonics better than -20dBc (see note 2)
• Sub-harmonics better than -30dBc (see note 3)
• Amplitude stability versus temperature to
within ±1% (see note 4)
• VCXO Sine Output (see details in VCXO data
sheets)
• 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 5)
• Low Harmonic Distortion (THD < 5%)
• Low frequency aging, Allan Variance
• High-shock resistant
Notes:
1. The output level is determined by the supply
voltage, load, and package size.
2. A specified harmonic level of -20dBc is easily
achievable. The typical harmonics of Q-Tech Sine
Wave source are better than -25dBc.
3. Sub-harmonic level is determined by frequency
multiplication method, supply voltage, output
power, and input current.
4. Typical amplitude stability over temperature is
±10% or less.
5. Typical spurious level is better than -60dBc over the
spectrum of 100kHz to 1GHz.
Other Design and Test Options
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