Q-Tech SINE WAVE User Manual

Q-TECH

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Description

The Q-Tech Sine Wave Sources encompasses state-of-the-art
sinewave source with low harmonic distortion and a precise
sinewave output.

A flexible design allows Q-Tech Corporation to offer a
variety of choices of output power and load. Based on this
flexibility, Q-Tech welcomes specifications with parameters
other than standard. An external trimming capacitor option
is available for applications that require a tight frequency
stability.

The AT-Cut crystal utilized in the design allows for high
stability for a particular temperature range extending from

-55ºC to +125ºC. For more information, please refer to the
stability vs. temperature on the following page.

The reliable construction of these sinewave oscillators
qualifies them for more stringent environmental
applications. Military screening per MIL-PRF-55310, Level
B is available as an option.

Features

• Made in the USA

• ECCN: EAR99

• DFARS 252-225-7014 Compliant:

Electronic Component Exemption

• USML Registration # M17677

• Available in both DIP and Double DIP packages

• Supply voltages 5Vdc and 15Vdc

• Broad frequency range from 10Hz to 450MHz

• AT-Cut crystal

• Low Total Harmonic Distortion

• Choice of output power and load

• All metal and hermetically sealed packages

• Low phase noise

• External tuning capacitor option

• Fundamental and third overtone designs

• Analog multiplier for frequency ≥ 200MHz

• Tristate option

• Custom design available tailors to meet customer’s needs

• Q-Tech does not use pure lead or pure tin in its products

• RoHS compliant

Applications

• Designed to meet today’s requirements for communication

systems.

• Wide military clock applications

• Control and measurement

• Signal processing

SINE WAVE SOURCES

DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS

5.0 to 15Vdc - 10Hz to 450MHz

Ordering Information

Sample part number

QT901S9M-20. 0 0 0 M H z

QT 901 S9M-20.000MHz

T = Standard
S = Solder Dip (*)

Model #
(See page 3)

1 = ± 100ppm at 0ºC to +70ºC
3(***) = ± 5ppm at 0ºC to +50ºC
4 = ± 50ppm at 0ºC to +70ºC
5 = ± 25ppm at -20ºC to +70ºC
6 = ± 50ppm at -55ºC to +105ºC

9 = ± 50ppm at -55ºC to +125ºC
10 = ± 100ppm at -55ºC to +125ºC
11 = ± 50ppm at -40ºC to +85ºC
12 = ± 100ppm at -40ºC to +85ºC

(*) Hot Solder Dip Sn60 per MIL-PRF 55310 is optional for an additional cost

(***) Requires an external capacitor

For custom load, supply voltage, output power, harmonic distortion, frequency
stability vs. temperature, and others not listed herein, please request a custom part
number.

For Non-Standard requirements, contact Q-Tech Corporation at

[e-mail]

Screened to
MIL-PRF-55310,level B
(Left blank if no screening)

Packaging Options

• Standard packaging in black foam

• Optional anti-static plastic tube

Other Options Available For An Additional Charge

• Lead forming available on all packages. Please contact for details.

• P. I. N. D. test (MIL-STD 883, Method 2020)

• Lead trimming

• Phase Noise test (Static and under vibration)

• Jitter test

All DIP packages are available in surface mount form.

Specifications subject to change without prior notice.

Output frequency

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-tec h.com

Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)

1

Q-TECH

COR PORATI ON

SINE WAVE SOURCES

DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS

5.0 to 15Vdc - 10Hz to 450MHz

Electrical Characteristics

Parameters QT901S

Output freq. range (Fo)

Supply voltage (Vdd)

Maximum Applied Voltage (Vdd max.) +18Vdc -0.5 to +7.0Vdc

Frequency stability (∆F/∆T) See Option codes

Operating temp. (Topr)

Storage temp. (Tsto) -62ºC to + 125ºC

Operating supply current (Idd)

Output amplitude or power 1V RMS min.

Output Load 1kΩ 50Ω

Total Harmonic Distortion (THD) or
harmonics

Sub-harmonics

Start-up time

Phase Noise at 25ºC (typ.) at:

Integrated Phase Jitter RMS
(12kHz to 20MHz) typ.

Aging (at 70ºC) ± 5ppm max. first year / ± 2ppm typ. per year thereafter

10Hz — 1MHz (*) 1MHz — 85MHz (**) 10Hz — 450MHz (*)

+15Vdc ± 5% +5Vdc ± 10%

20mA max. 40mA max.

2V RMS typ.

5% max. -20dBc max.

QT906S

See Option codes

20mA typ. at 25MHz
30mA typ. at 50MHz

0dBm min.

+5dBm typ.

Internally AC coupled

-30dBc max.

10ms max.

10Hz -70dBc/Hz

100Hz -100dBc/Hz

1kHz -125dBc/Hz

10kHz -140dBc/Hz

100kHz -145dBc/Hz

QT941S QT957S

1V p-p min. for Fo < 1MHz

0dBm min. for F ≥1MHz

1ps

60mA max.

40mA typ. at 175MHz

1kΩ for Fo < 1MHz

50Ω for Fo ≥ 1MHz

Other Design and Test Options

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.

(*) 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.

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-t ech.co m

Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)

2

Q-TECH

19

1018

.300

.505

.200

.018

.800

1.080

Q-TECH
P/N
FREQ.
D/C S/N

(12.83)

(7.62)

Ø .056

Ø 1.42

.100

(2.54)

(20.32)

(27.43)

(.457)

(5.08)

.200

(5.08)

MAX.

MIN.

MAX.

(5.08)

.200

.250

(6.35)

.018

(0.457)

.100

(2.54)

.700

(17.78)

.980

(24.89)

.600

(15.24)

(20.45)

.805

FREQ.

P/N

Q-TECH

D/C S/N

81

16 9

MAX.

MIN.

MAX.

MAX.

17

814

Q-TECH
P/N
FREQ.
D/C S/N

(22.35)

(15.24)

.880

.600

.300

(7.62)

(2.54)

.100

.505

(12.83)

MAX.

(.457)

.018

MIN.

(5.08)

.200

.200

(5.08)

MAX.

MAX.

14 8

71

FREQ.
D/C S/N

P/N

Q-TECH

.600

(15.24)

(7.62)

.300

.200

(5.08)

MAX.

MIN.

(5.08)

.200

(.457)

.018

MAX.

(20.32)

.800

.505

(12.83)

MAX.

COR PORATI ON

Package Configuration Versus Pin Connections

SINE WAVE SOURCES

DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS

5.0 to 15Vdc - 10Hz to 450MHz

A

QT901S

D

QT957S

B

QT906S

C

QT941S

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-tec h.com

Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)

Dimensions are in inches (mm)

QT # Conf Vcc GND Case Output

MIL-PRF-55310

Configuration

QT901S A 18 9 9 10 N/A

QT906S B 14 7 7 8 N/A

QT941S C 14 7 7 8 N/A

QT957S D 16 8 8 9 N/A

Please contact factory for pin connections on external capacitor (code 3).

Package Information

• Lead material: Kovar

• Lead finish: Gold Plated: 50μ ~ 80μ inches
Nickel Underplate: 100μ ~ 250μ inches

• Package to lid attachment: Resistance weld

• Weight: 4.0g typ., 14.2g max.

Equivalent

3

Q-TECH

Vcc

Out

GND

QT906S
QT941S
QT957S

+5Vdc

OUTPUT

0.01µF

50

Vcc

Out

GND

QT901S

+15Vdc

OUTPUT

0.01uF

1k

Vcc

Out

GND

QT901S(<500Hz)

+15V

OUTPUT

0.01µF

1k

1µF

COR PORATI ON

SINE WAVE SOURCES

DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS

5.0 to 15Vdc - 10Hz to 450MHz

Output Waveform into 50Ω load

Typical output amplitude of QT957S-69.4MHz

Test Circuit

Startup Time

Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)

Typical spectrum output power and harmonics of QT957S-171MHz

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-tec h.com

Typical output amplitude and start-up time of QT957S-20.0166MHz

4

Q-TECH

45º 45º

Hybrid Case

Substrate

Die

D/A epoxy

D/A epoxy

Heat

Die

R1

D/A epoxy

Substrate

D/A epoxy

Hybrid Case

R2 R3 R4 R5

JA JC CA

Die

T

T

T

C

A

J

CA

JC

COR PORATI ON

Thermal Characteristics

The heat transfer model in a hybrid package is described in
figure 1 (Based on single ASIC design).

Heat spreading occurs when heat flows into a material layer of
increased cross-sectional area. It is adequate to assume that
spreading occurs at a 45° angle.

The total thermal resistance is calculated by summing the
thermal resistances of each material in the thermal path
between the device and hybrid case.

SINE WAVE SOURCES

DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS

5.0 to 15Vdc - 10Hz to 450MHz

RT = R1 + R2 + R3 + R4 + R5

(Figure 1)

The total thermal resistance RT (see figure 2) between the heat
source (die) to the hybrid case is the Theta Junction to Case
(Theta JC) in°C/W.

• Theta junction to case (Theta JC) for this product is 24°C/W.

• Theta case to ambient (Theta CA) for this part is 106°C/W.

• Theta Junction to ambient (Theta JA) is 130°C/W.

Maximum power dissipation PD for this package at 25°C is:

• PD(max) = (TJ (max) – TA)/Theta JA

• With TJ = 175°C (Maximum junction temperature of die)

• PD(max) = (175 – 25)/130 = 1.15W

(Figure 2)

Environmental Specifications

Q-Tech Standard Screening/QCI (MIL-PRF55310) is available for all of our Sine Wave packages. Q-Tech can also customize
screening and test procedures to meet your specific requirements. The Sine Wave 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 and Gross Leak MIL-STD-883, Method 1014, Cond. A and C
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

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-tec h.com

Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)

Please contact Q-Tech for higher shock requirements

5

SINE WAVE SOURCES

-50

-40

-30

-20

-10

0

10

20

30

40

50

-55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0510 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125

Temperature (°C)

1_12 2_12

Frequency Stability (PPM)

FREQUENCY STABILITY VS. TEMPERATURE QT957S-64MHz

Q-TECH

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Frequency vs. Temperature Curve

Phase Noise and Phase Jitter Integration

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.

DUAL-IN-LINE CRYSTAL CLOCK OSCILLATORS

5.0 to 15Vdc - 10Hz to 450MHz

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.

Symbol

∫L(f)

Sφ (f)=(180/Π)x√2 ∫L(f)df

RMS jitter = Sφ (f)/(fosc.360°) Jitter(in seconds) due to phase noise. Note Sφ (f) in degrees.

Integrated single side band phase noise (dBc)

Spectral density of phase modulation, also known as RMS phase error (in degrees)

Definition

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 QT957S, +5Vdc, 150MHz and QT957S8M, +5Vdc, 69.4MHz clock at off­set frequencies 10Hz to 10MHz, and phase jitter integrated over the bandwidth of 12kHz to 1MHz.

Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: [phone] - Fax: [phone] - www.q-tec h.com

Sine Wave Sources (Revision E, August 2010 ) (ECO# 9936)

QT957S, +5Vdc, 150MHz

QT957S8M, 5.0Vdc, 69.4 MHz

6