11
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
LEADLESS CHIP CARRIER
CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 732.4Hz to 125MHz
Leadless Chip Carrier (Revision D, August 2008) (ECO# 9414)
Description
Q-Tech’s Leadless Chip Carrier crystal oscillators
consist of a source clock square wave generator, logic
output buffers and/or logic divider stages, and a round
AT high-precision quartz crystal built in a ceramic true
SMD package.
Features
• Made in the USA
• ECCN: EAR99
• DFARS 252-225-7014 Compliant:
Electronic Component Exemption
• USML Registration # M17677
• Wide frequency range from 732.4Hz to 125MHz
• Available as QPL MIL-PRF-55310/19 (QT66T), /20
(QT62T), and /29 (QT66HCD)
• Choice of packages and pin outs
• Choice of supply voltages
• Choice of output logic options ( CMOS, ACMOS,
HCMOS, LVHCMOS, TTL, ECL, PECL, and
LVPECL)
• AT-Cut crystal
• True SMD hermetically sealed package
• Tight or custom symmetry available
• Low height available
• External tuning capacitor option
• Fundamental and third overtone designs
• Tristate function option D
• Four-point crystal mounts
• 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 all voltage
applications
• Wide military clock applications
• Industrial controls
• Microcontroller driver
Ordering Information
For Non-Standard requirements, contact Q-Tech Corporation at
Sales@Q-Tech.com
Specifications subject to change without prior notice.
Packaging Options
Other Options Available For An Additional Charge
• Standard packaging in anti-static plastic tube
• Optional Tape and Reel
• Solder Dip Sn/Pb 60/40%
• P. I. N. D. test
• J-leads attached
For frequency stability vs. temperature options not listed herein, please request a
custom part number.
Model #
QTXX — XX — D — XX — M — 60.000MHz
Output frequency
Screened to
MIL-PRF-55310,level B
(Left blank if no screening)
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
Tristate Option D
(Left blank if no Tristate)
C = CMOS +5V to +15V *
AC = ACMOS +5V
HC = HCMOS +5V
T = TTL +5V
L = LVHCMOS + 3.3V
N = LVHCMOS + 2.5V
R = LVHCMOS + 1.8V
Z = Z output
(*) Please specify supply voltage when ordering CMOS
(**) Require an external capacitor
Package Information
• Package material (Header): 90% AL2O3, (Metalization): Tungsten
• Lead finish: Gold Plated – 50µ ~ 80µ inches
Nickel Underplate – 100µ ~ 250µ inches
• Cover: Kovar, Gold Plated – 60µ ~ 90µ inches
Nickel Underplate – 50µ ~ 100µ inches
With attached Preform – 80% Au, 20% Sn
• Package to lid attachment: Seam weld
2
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
LEADLESS CHIP CARRIER
CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 732.4Hz to 125MHz
Leadless Chip Carrier (Revision D, August 2008) (ECO# 9414)
Electrical Characteristics
(*) Available in 2.5Vdc (N) or 1.8Vdc (R)
Z Output logic can drive up to 200 pF load with typical 6ns rise & fall times (tr, tf)
ECL, PECL, LVPECL are available. Please contact Q-Tech for details.
Parameters CAC HC T L (*)
Output freq. range (Fo)
QT62, 70 732.4Hz — 15MHz 732.4Hz — 85MHz 732.4Hz — 85MHz
QT66 732.4Hz — 15MHz 732.4Hz — 85MHz 732.4Hz — 125MHz
QT71 100kHz — 15MHz 100kHz — 85MHz 100kHz — 125MHz
Supply voltage (Vdd) 5V ~ 15Vdc ± 10% 5.0Vdc ± 10% 3.3Vdc ± 10%
Freq. stability (∆F/∆T) See Option codes
Operating temp. (Topr) See Option codes
Storage temp. (Tsto) -62ºC to + 125ºC
Operating supply current
(Idd) (No Load)
F and Vdd dependent
3 mA max. at 5V up to 5MHz
25 mA max. at 15V up to 15MHz
20 mA max. - 732.4Hz ~ < 16MHz
25 mA max. - 16MHz ~ < 40MHz
35 mA max. - 40MHz ~ < 60MHz
45 mA max. - 60MHz ~ 85MHz
3 mA max. - 732.4Hz ~ < 500kHz
6 mA max. - 500kHz ~ < 16MHz
10 mA max. - 16MHz ~ < 32MHz
20 mA max. - 32MHz ~ < 60MHz
30 mA max. - 60MHz ~ < 100MHz
40 mA max. - 100MHz ~ 125MHz
Symmetry
(50% of ouput waveform or 1.4Vdc for
TTL)
45/55% max. Fo < 4MHz
40/60% max. Fo ≥ 4MHz
45/55% max. Fo < 12MHz
40/60% max. Fo ≥ 12MHz
Rise and Fall times
(with typical load)
30ns max.
(Measured from 10% to 90%)
15ns max. Fo < 15kHz
6ns max. Fo 15kHz ~ 39.999MHz
3ns max. Fo 40MHz ~ 160 MHz
(Measured from 10% to 90% CMOS or from 0.8V to 2.0V TTL)
Output Load 15pF // 10kΩ 10TTL Fo < 20MHz
6TTL Fo ≥ 20MHz
15pF // 10kΩ
Start-up time (Tstup) 10ms max.
Output voltage (Voh/Vol) 0.9 x Vdd min.; 0.1 x Vdd max. 2.4V min.; 0.4V max. 0.9 x Vdd min.; 0.1 x Vdd max.
Output Current (Ioh/Iol) ± 1mA typ. at 5V
± 6.8mA typ. at 15V
± 24mA ±8 mA -1.6mA / TTL
+40µA / TTL
± 4mA .
Enable/Disable
Tristate function Pin 1 Call for details VIH ≥ 2.2V Oscillation;
VIL ≤ 0.8V High Impedance
VIH ≥ 0.7 x Vdd Oscillation;
VIL ≤ 0.3 x Vdd High Impedance
Jitter RMS 1σ (at 25ºC) 8ps typ. - < 40MHz
5ps typ. - ≥ 40MHz
15ps typ. - < 40MHz
8ps typ. - ≥ 40MHz
Aging (at 70ºC) ± 5ppm max. first year / ± 2ppm typ. per year thereafter
33
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
LEADLESS CHIP CARRIER
CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 732.4Hz to 125MHz
Leadless Chip Carrier (Revision D, August 2008) (ECO# 9414)
Package Configuration Versus Pin Connections
12
MAX.
12
Q-TECH
P/N
FREQ.
D/C S/N
34
40
4416
(2.16)
.085
(.635)
.025
.500
(12.70
.050
(1.27)
(16.51)
.650
34
6144 40
(1.27)
.050
SQ.
SQ.
A
QT62
22
Q-TECH
P/N
FREQ.
D/C S/N
8
14 28 26
14 28 26
822
.085
(2.16)
(.635)
.025
.300
(7.62)
(1.27)
.050
(11.43)
.450
.050
(1.27)
MAX.
SQ.
SQ.
D
QT71
10 31
5 36401
.020
(.508)
(9.14)
.360 .040
(1.02)
.480
(12.19)
.040
(1.02)
10 31
5140 36
Q-TECH
P/N
FREQ.
D/C S/N
MAX.
(2.16)
.085
SQ.
SQ.
B
QT66
3712
436 1
Q-TECH
P/N
FREQ.
D/C S/N
(.508)
.020
6148 43
3712
.040
(1.02)
(1.02)
.040
(14.22)
.560
.440
(11.18)
MAX.
.085
(2.16)
SQ.
SQ.
C
QT70
QT # Conf Vcc GND Case Output E/D
Equivalent
MIL-PRF-55310
Configuration
QT62 A 6 & 12 34 & 40 34 & 40 42 41 /20 = QT62T
QT66 B 4 & 10 31 & 37 31 & 37 39 32 /19 = QT66T
/29 = QT66HCD
QT70 C 5 44 44 47 N/A N/A
QT71 D 4 & 8 22 & 26 22 & 26 28 27 N/A
Dimensions are in inches (mm)
Please contact factory for pin connections on external capacitor (code 3).
44
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
LEADLESS CHIP CARRIER
CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 732.4Hz to 125MHz
Leadless Chip Carrier (Revision D, August 2008) (ECO# 9414)
Vdd
GND
0.1xVdd
0.9xVdd
VOH
VOL
TrTf
TH
T
0.5xVdd
SYMMETRY = x 100%
TH
T
AoPø1.5
ø1.5
Ko
1.75±0.1
5º Max
0.3±.005 4.0±0.1
2.0±0.1
24.0±0.3
5.5±0.1
Bo
ø13.0±0.5
2.5
2.0
ø80±1
26
120º
ø178±1
or
ø330±1
Output Waveform (Typical) Tape and Reel
Test Circuit
-
-
Output
Ground
Vdd Out
GND
0.1µF
15pF
E/D
Tristate Function
Power
supply 10k
mA
Vdc
+
+
+
(*)
or
0.01µF
(*) CL includes probe and jig capacitance
Typical test circuit for CMOS logic
POWER
SUPPLY
+
-
mA
0.1µF
Vdc
-
Vdd OUT
OUT
GND
Typical test circuit for TTL logic.
0.01µF Rs
(*) CL inclides the loading effect of the oscilloscope probe.
E/D
CL
+
+
-
RL
LOAD
6 TTL
10 TTL
CL(*)
12pF
20pF
RL
430Ω
270Ω
RS
10kΩ
6kΩ
or
Vdd
The Tristate function on pin 1 has a built-in pull-up resistor typical 50kΩ, so it
can be left floating or tied to Vdd without deteriorating the electrical performance.
Frequency vs. Temperature Curve
0
FREQUENCY STABILITY VS. TEMPERATURE QT66T-64.000MHz
-50
-40
-30
-20
-10
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)
Frequency Stability (PPM)
1_5 2_5 3_5 4_5
QT#
P
(mm)
Ao
(mm)
Bo
(mm)
Ko
(mm)
Reel size
(Diameter in mm)
Qty per reel
(pcs)
QT62
20 17 17.30
2.70 178mm
330mm
100
600
QT66
16 12.57 12.57
2.54 178mm
330mm
280
1200
QT71
16 12.00 12.00
3.00 178mm
330mm
280
1200
Dimensions are in mm. Tape is compliant to EIA-481-A.
55
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
LEADLESS CHIP CARRIER
CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 732.4Hz to 125MHz
Leadless Chip Carrier (Revision D, August 2008) (ECO# 9414)
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
Thermal Characteristics
JA JC CA
Die
T
T
TC
A
J
CA
JC
(Figure 1)
(Figure 2)
The heat transfer model in a hybrid package is described in
figure 1.
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.
RT=R1+R2+R3+R4+R5
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 30°C/W.
• Theta case to ambient (Theta CA) for this part is 100°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
Environmental Specifications
Q-Tech Standard Screening/QCI (MIL-PRF55310) is available for all of our Leadless Chip Carrier packages. Q-Tech can also
customize screening and test procedures to meet your specific requirements. The Leadless Chip Carrier 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, ± 1.5ppm max
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. B
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
Please contact Q-Tech for higher shock requirements
66
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
LEADLESS CHIP CARRIER
CRYSTAL CLOCK OSCILLATORS
1.8 to 15Vdc - 732.4Hz to 125MHz
Leadless Chip Carrier (Revision D, August 2008) (ECO# 9414)
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 QT66T10M, 5.0Vdc, 24MHz clock at offset frequencies 10Hz to 5MHz,
and phase jitter integrated over the bandwidth of 12kHz to 1MHz.
Phase Noise and Phase Jitter Integration
Period Jitter
As data rates increase, effects of jitter become critical with
its budgets tighter. Jitter is the deviation of a timing event
of a signal from its ideal position. Jitter is complex and
is composed of both random and deterministic jitter
components. Random jitter (RJ) is theoretically un-
bounded and Gaussian in distribution. Deterministic jitter
(DJ) is bounded and does not follow any predictable
distribution. DJ is also referred to as systematic jitter. A
technique to measure period jitter (RMS) one standard
deviation (1σ) and peak-to-peak jitter in time domain is to
use a high sampling rate (>8G samples/s) digitizing
oscilloscope. Figure shows an example of peak-to-peak
jitter and RMS jitter (1σ) of a QT66T-24MHz, at 5.0Vdc.
RMS jitter (1σ): 8.20ps Peak-to-peak jitter: 70.89ps
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.
QT66T10M, 5.0Vdc, 24MHz
