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
1 of 7
Description
Q-Tech’s High Stability Digital TCXO is a high reliability
signal generator that provides an HCMOS output. The TCXO
is available in a Surface Mount (SMD) package.
A flexible design allows Q-Tech Corporation to offer a variety
of choices of output standard, power and load. Based on this
flexibility, Q-Tech welcomes specifications with parameters
other than standard.
Low G-Sensitivity AT-Cut Crystal utilized in the design
guarantees 1PPB/G or better. The reliable construction of this
design qualifies it for stringent environmental applications.
Features
• Made in the USA
• ECCN: EAR99
• DFARS 252-225-7014 Compliant:
Electronic Component Exemption
• USML Registration # M17677
• Supply voltages 3.3Vdc and 5Vdc
• Wide temperature range (-55ºC to +125ºC)
• AT-Cut crystal
• Low phase noise and jitter
• Choice of output power and load
• Hermetically sealed packages
• Custom design available tailored to meet customer’s needs
• Q-Tech does not use pure lead or pure tin in its products
Applications
• Designed to meet today’s requirements for communication
systems.
• Wide military clock applications
• Control and measurement
• Signal processing
Standard Frequencies (MHz)
• 10, 10.001355, 15.05, 16, 16.384, 20, 25, 27.48, 30, 32, 40,
80, 100 (See table on pg 2 for details)
Specifications subject to change without prior notice.
Packaging Options
Other Options Available For An Additional Charge
• Standard packaging in black foam
• Optional anti-static plastic tube
• P. I. N. D. test (MIL-STD 883, Method 2020)
• Phase Noise test (Static and under vibration)
• Jitter test
Ordering Information
For Non-Standard requirements, contact Q-Tech Corporation at
Sales@Q-Tech.com
Frequency vs. Temperature Code (*):
N ± 0.075ppm at 0ºC to +70ºC
O ± 0.09ppm at -20ºC to +70ºC
R ± 1ppm at -20ºC to +70ºC
S ± 0.3ppm at -20ºC to +70ºC
T ± 1ppm at -40ºC to +85ºC
U ± 0.3ppm at -40ºC to +85ºC
V ± 1ppm at -55ºC to +125ºC
Supply Voltage:
3 +3.3V
5 +5.0V
Output Frequency
Screening Option:
Blank No Screening
M Per MIL-PRF-55310, Level B
Logic:
C HCMOS
Package Type:
0 SMD
(*) Option “V” and custom frequencies higher than
50MHz may require NRE
Q T 3 1 0 3 C R M- 25.000MHz
(Sample part number)
QT3103CRM-25.000MHz
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.
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
3 of 7
(*) For VC or ED options, consult factory otherwise they will
be NC
(**) By connecting 100-200uF capacitor to pin #5, close-in
phase noise may be improved up to -10dBc/Hz. Warm up
time will increase from 0.5sec to 10sec.
123
4
5
9
876
.372
(9.45)
.310
(7.87)
.170
(4.32)
.100
(2.54)
.100
(2.54)
.100
(2.54)
.055
(1.40)
.040
(1.02)
P/N
FREQ.
Q-TECH
D/C S/N
Dimensions are in inches (mm)
Pin No.
Function
Pin No.
Function
1
NC or VC (*)
6
OUTPUT
2
NC or ED (*)
7
NC
3
GND
8
SUPPLY VOLTAGE
4
NC
9
NC
5
NOISE CAP OR NC
(**)
Package Outline and Pin Connections
Package Information
• Package Material: 91% AL2O3
• Cover: Kovar, Nickel Plated 100 ~ 200µ
• Weight: 1g typ., 2g max.
• Termination Pads (4x): Tungsten
• Termination Finish: Nickel Underplate: 100μ ~ 250μ inches
Gold Plated: 50μ ~ 80μ inches
NC (No Connection), VC (Voltage Control), ED (Enable/Disable)
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
4 of 7
Output Waveform into HCMOS load Test Circuit
Startup Time
Typical start-up time of QT3103C-27.48MHz
HCMOS Load
Typical output of QT3103C-27.48MHz
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
5 of 7
Environmental Specifications
Q-Tech Standard Screening similar to (MIL-PRF-55310) is available. Q-Tech can also customize screening and test procedures to meet
your specific requirements. The packages are designed and processed to exceed the following test conditions:
Environmental Test Test Conditions
Temperature cycling MIL STD 883, Method 1010, Cond. B
Constant acceleration MIL STD 883, Method 2001, Cond. A, Y1
Seal Fine Leak MIL STD 883, Method 1014, Cond. A
Burn in 160 hours, 125°C with load
Aging 30 days, 70°C
Vibration sinusoidal MIL STD 202, Method 204, Cond. D
Shock, non operating MIL STD 202, Method 213, Cond. I
Thermal shock, non operating MIL STD 202, Method 107, Cond. B
Ambient pressure, non operating MIL STD 202, 105, Cond. C, 5 minutes dwell time minimum
Resistance to solder heat MIL STD 202, Method 210, Cond. C
Moisture resistance MIL STD 202, Method 106
Terminal strength MIL STD 202, Method 211, Cond. C
Resistance to solvents MIL STD 202, Method 215
Solderability MIL STD 202, Method 208
ESD Classification MIL STD 883, Method 3015, Class 1HBM 0 to 1,999V
Moisture Sensitivity Level J STD 020, MSL 1
Please contact Q-Tech for higher shock requirements
Frequency vs. Temperature Curve
Typical Stability of QT3103C-10.000MHz
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
6 of 7
Phase noise is measured in the frequency domain, and is expressed as a ratio of signal power to noise power measured in a 1Hz bandwidth
at an offset frequency from the carrier, e.g. 10Hz, 100Hz, 1kHz, 10kHz, 100kHz, etc. Phase noise measurement is made with an Agilent
E5052A Signal Source Analyzer (SSA) with built-in outstanding low-noise DC power supply source. The DC source is floated from the
ground and isolated from external noise to ensure accuracy and repeatability.
In order to determine the total noise power over a certain frequency range (bandwidth), the time domain must be analyzed in the frequency
domain, and then reconstructed in the time domain into an RMS value with the unwanted frequencies excluded. This may be done by
converting L(f) back to Sφ(f) over the bandwidth of interest, integrating and performing some calculations.
The value of RMS jitter over the bandwidth of interest, e.g. 10kHz to 20MHz, 10Hz to 20MHz, represents 1 standard deviation of
phase jitter contributed by the noise in that defined bandwidth.
Figure below shows a typical phase noise/phase jitter of a QT3103C, 3.3Vdc, 10.000MHz and a QT3103C, 3.3Vdc, 27.48MHz TCXO
at offset frequencies 10Hz to 5MHz, and phase jitter integrated over the bandwidth of 1kHz to 5MHz. Typical phase noise jitter (1kHz
to 20MHz) smaller than 1psec
Phase Noise and Phase Jitter Integration
Symbol
Definition
∫L(f) Integrated single side band phase noise (dBc)
Sφ (f) (180/Π)x√2 ∫L(f)df Spectral density of phase modulation, also known as RMS phase error (in degrees)
RMS jitter Sφ (f)/(fosc.360°) Jitter(in seconds) due to phase noise. Note Sφ (f) in degrees.
QT3103C-27.48MHzQT3103C-10.000MHz
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
7 of 7
G-Sensitivity
Typical G-Sensitivity of QT3103CU-27.480MHz
ECO REV REVISION SUMMARY Page
10540 D Add Standard Frequencies 1, 2
10608 E
Change package photo 1
Add Note #4 2
Modified Package Information:
• Add cover information
• Modified Package Material From 90% to 91%
3
10834 F
Modified Ampliude or Power
2
Fixed typo under “Other Design and Test Options” (from see note 5 to 3)
Add Note #5
Add document # on footer (QPDS 0009) All
