QT78 SERIES
Q-TECH
CORPORATION
HIGH RELIABILITY MINIATURE CRYSTAL CLOCK OSCILLATORS
1.8 to 5.0Vdc - 15kHz to 150MHz
Description
Q-Tech’s surface-mount QT78 Series oscillators consist
of an IC 5Vdc, 3.3Vdc, 2.5Vdc, 1.8Vdc clock square
wave generator and a round A high-precision quartz
T
crystal built in a rugged surface-mount ceramic J-lead
miniature package.
Features
• Made in the USA
• ECCN: EAR99
• DFARS 252-225-7014 Compliant:
Electronic Component Exemption
• USML Registration # M17677
• Available as QPL MIL-PRF-55310/27, /28, and /30
• Broad frequency range from 15kHz to 150MHz
• Rugged 4 point mount design for high shock and
vibration
• ACMOS, HCMOS, TTL or LVHCMOS logic
• Tri-State Output Option (D)
• Hermetically sealed ceramic SMD package
• Fundamental and 3rd Overtone designs
• Low phase noise
• Custom designs available
• Q-Tech does not use pure lead or pure tin in its
products
• RoHS compliant
Package Specifications and Outline
0.550±.0.005
(13.970±0.13)
4
3
Q-TECH
P/N
FREQ.
D/C S/N
Pin No.
0.350±0.005
(8.89±0.13)
Function
TRISTA or NC
TE
GND/CASE
OUTPUT
VDD
1
2
3
4
1
2
0.100±.005
(2.54±0.13)
0.200±.005
(5.080±0.13)
0.170 MAX.
(4.318 MAX.)
0.018±.003
(0.46±0.08)
0.39
(9.91)
0.27
(6.86)
0.07
(1.78)
0.13
(3.30)
0.375 max.
(9.525 max.)
.130 MAX.
3.302 MAX.
0.20
(5.08)
0.13
(3.30)
Applications
• Designed to meet today’s requirements for low
voltage applications
• Wide military clock applications
• Smart munitions
• Navigation
• Industrial controls
• Microcontroller driver
0.300±.005
(7.620±0.13)
Dimensions are in inches (mm)
Package Information
• Package material: 90% AL2O3
• Lead material: Kovar
• Lead finish: Gold Plated: 50μ ~ 80μ inches
Nickel Underplate: 100μ ~ 250μ inches
• Weight: 1.1g typ., 3.0g max.
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QT78 (Revision H, January 2011) (ECO #10085)
1
QT78 SERIES
Q-TECH
CORPORATION
HIGH RELIABILITY MINIATURE CRYSTAL CLOCK OSCILLATORS
1.8 to 5.0Vdc - 15kHz to 150MHz
Electrical Characteristics
Parameters
Output frequency range (Fo)
Supply voltage (Vdd)
Maximum Applied Voltage
(Vdd max.)
Frequency stability (∆F/∆T)
Operating temperature (Topr)
Storage temperature (Tsto)
20 mA max. -
25 mA max. -
35 mA max. -
45 mA max. -
15kHz ~ < 16MHz
16MHz ~ < 32MHz
32MHz ~ < 60MHz
60MHz ~ ≤ 85MHz
QT78AC
QT78HC
15kHz — 85.000MHz (*)
5.0Vdc ± 10%
-0.5 to +7.0Vdc
QT78T
QT78L
15kHz — 150.000MHz (*)
3.3Vdc ± 10%
QT78N
125.000kHz — 133.000MHz
2.5Vdc ± 10%
-0.5 to +5.0Vdc
QT78R
125.000kHz — 100.000MHz
1.8Vdc ± 10%
See Option codes
See Option codes
-62ºC to + 125ºC
3 mA max. - 15kHz ~ < 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 ~ < 130MHz
50 mA max. - 130MHz ~ ≤150MHz
45/55% max. - 15kHz ~ < 15MHz
40/60% max. - 15 ~ ≤ 150MHz
(Tighter symmetry available)
5ns max. - Fo < 30MHz
3ns max. - Fo ≥ 30 - 85MHz
(between 0.8V to 2.0V)
10TTL (Fo < 60MHz)
6TTL (Fo ≥ 60MHz)
6ns max. - 15kHz ~ < 40MHz
3ns max. - 40 ~ ≤ 150MHz
(between 10% to 90%)
15pF // 10kohms
(30pF max. for F ≤ 50MHz)
3 mA max. - 125kHz
6 mA max. - 500kHz
15 mA max. - 40MHz
25 mA max. - 60MHz
35 mA max. - 85MHz
~ < 500kHz
~ < 40MHz
~ < 60MHz
~ < 85MHz
~ ≤ 133MHz
4 mA max. - 125kHz
10 mA max. - 40MHz
20 mA max. - 50MHz
25 mA max. - 85MHz
~ < 40MHz
~ < 50MHz
~ < 85MHz
~ ≤ 100MHz
Operating supply current
(Idd) (No Load)
Symmetry
(50% of ouput waveform or
1.4Vdc for TTL)
Rise and Fall times
(with typical load)
6ns max. - Fo < 30MHz
3ns max. - Fo ≥ 30 - 85MHz
(between 10% to 90%)
15pF // 10kohms
50pF max. or 10TTL
for (Fo < 60MHz)
30pF max. or 6TTL
for (Fo ≥ 60MHz)
Start-up time (Tstup)
Output voltage (V ol)
oh/V
Output Current (Ioh/Iol)
Enable/Disable
Tristate function Pin 1
Jitter RMS 1σ (at 25ºC)
Aging (at 70ºC)
45/55% max. - 15kHz ~ < 15MHz
40/60% max. - 15 ~ ≤ 85MHz
(Tighter symmetry available)
7ns max. - Fo < 30MHz
3ns max. - Fo ≥ 30 - 85MHz
(between 10% to 90%)
15pF // 10kohms
(2LSTTL)
45/55% max. - 125kHz ~ < 15MHz
40/60% max. - 15 ~ ≤ 133MHz
(Tighter symmetry available)
5ns max. - 125kHz ~ < 40MHz
3ns max. - 40 ~ ≤ 133MHz
(between 10% to 90%)
45/55% max. - 125kHz~ < 15MHz
40/60% max. - 15 ~ ≤ 100MHz
(Tighter symmetry available)
5ns max. - 125kHz ~ < 40MHz
3ns max. - 40 ~ ≤ 100MHz
(between 10% to 90%)
15pF // 10kohms
Output Load
5ms max.
0.9 x Vdd min.; 0.1 x Vdd max.
± 24mA max.
± 8mA max.
2.4V min.; 0.4V max.
-1.6 mA/TTL
+40 µA/TTL
VIH ≥ 2.2V Oscillation;
VIL ≤ 0.8V High Impedance
8ps typ. - < 40MHz
5ps typ. - ≥ 40MHz
0.9 x Vdd min.; 0.1 x Vdd max.
± 4mA max.
VIH ≥ 0.7 x Vdd Oscillation;
VIL ≤ 0.3 x Vdd High Impedance
15ps typ. - < 40MHz
8ps typ. - ≥ 40MHz
± 5ppm max. first year / ± 2ppm max. per year thereafter
(*) Frequency as low as 1kHz without tristate function available. Contact Q-Tech for details.
Q-TECH Corporation
-
10150 W. Jefferson Boulevard, Culver City 90232
-
Tel: 310-836-7900 - Fax: 310-836-2157
-
www.q-te c h.co m
QT78 (Revision H, January 2011) (ECO #10085)
2
QT78 SERIES
Q-TECH
CORPORATION
HIGH RELIABILITY MINIATURE CRYSTAL CLOCK OSCILLATORS
1.8 to 5.0Vdc - 15kHz to 150MHz
Ordering Information
5.0Vdc
Sample part number
3.3Vdc
Sample part number
Q T78 HCD9M - 85 .00 0M Hz
Q T 78 HC D 9 M - 85.000MHz
T = Standard
S = Solder Dip
(*)
Logic:
AC = ACMOS
HC = HCMOS
T = TTL
Tristate Option
Blank = No Tristate
D = Tristate
1
4
5
6
9
10
11
12
14
15
=
=
=
=
=
=
=
=
=
=
Output frequency
Q T 78 L D 6 M -1 50 . 0 0 0M H z
Q T 78 L D 6 M - 150.000MHz
T = Standard
S = Solder Dip
(*)
Tristate Option
Blank = No Tristate
D = Tristate
Output frequency
Screening Options:
Blank = No Screening
M = Per MIL-PRF-55310, Level B
Screening Options:
Blank = No Screening
M = Per MIL-PRF-55310, Level B
Frequency vs. Temperature Code:
± 100ppm at
0ºC to
±
50ppm at
0ºC to
±
25ppm at -20ºC to
±
50ppm at -55ºC to
±
50ppm at -55ºC to
± 100ppm at -55ºC to
±
50ppm at -40ºC to
± 100ppm at -40ºC to
±
20ppm at -20ºC to
±
25ppm at -40ºC to
+70ºC
+70ºC
+70ºC
+105ºC
+125ºC
+125ºC
+85ºC
+85ºC
+70ºC
+85ºC
1
4
5
6
9
10
11
12
14
15
=
=
=
=
=
=
=
=
=
=
Frequency vs. Temperature Code:
± 100ppm at
0ºC to
±
50ppm at
0ºC to
±
25ppm at -20ºC to
±
50ppm at -55ºC to
±
50ppm at -55ºC to
± 100ppm at -55ºC to
±
50ppm at -40ºC to
± 100ppm at -40ºC to
±
20ppm at -20ºC to
±
25ppm at -40ºC to
+70ºC
+70ºC
+70ºC
+105ºC
+125ºC
+125ºC
+85ºC
+85ºC
+70ºC
+85ºC
2.5Vdc
Sample part number
1.8Vdc
Sample part number
QT78ND 12M- 133. 00 0M Hz
Q T 78 N D 12 M - 133.000MHz
T = Standard
S = Solder Dip
(*)
Output frequency
Q T 7 8 RD 1 M -1 0 0. 00 0 M Hz
Q T 78 R D 1 M - 100.000MHz
T = Standard
S = Solder Dip
(*)
Tristate Option
Blank = No Tristate
D = Tristate
Output frequency
Tristate Option
Blank = No Tristate
D = Tristate
Screening Options:
Blank = No Screening
M = Per MIL-PRF-55310, Level B
Screening Options:
Blank = No Screening
M = Per MIL-PRF-55310, Level B
1
4
5
6
9
10
11
12
14
15
=
=
=
=
=
=
=
=
=
=
Frequency vs. Temperature Code:
± 100ppm at
0ºC to
±
50ppm at
0ºC to
±
25ppm at -20ºC to
±
50ppm at -55ºC to
±
50ppm at -55ºC to
± 100ppm at -55ºC to
±
50ppm at -40ºC to
± 100ppm at -40ºC to
±
20ppm at -20ºC to
±
25ppm at -40ºC to
+70ºC
+70ºC
+70ºC
+105ºC
+125ºC
+125ºC
+85ºC
+85ºC
+70ºC
+85ºC
1
4
5
6
9
10
11
12
14
15
=
=
=
=
=
=
=
=
=
=
Frequency vs. Temperature Code:
± 100ppm at
0ºC to
±
50ppm at
0ºC to
±
25ppm at -20ºC to
±
50ppm at -55ºC to
±
50ppm at -55ºC to
± 100ppm at -55ºC to
±
50ppm at -40ºC to
± 100ppm at -40ºC to
±
20ppm at -20ºC to
±
25ppm at -40ºC to
+70ºC
+70ºC
+70ºC
+105ºC
+125ºC
+125ºC
+85ºC
+85ºC
+70ºC
+85ºC
Frequency stability vs. temperature codes may not be available in all frequencies.
For Non-Standard requirements, contact Q-Tech Corporation at Sales@Q-Tech.com
Packaging Options
Other Options Available For An Additional Charge
• Standard packaging in anti-static plastic tube (60pcs/tube)
•
(*)
Hot Solder Dip Sn60 per MIL-PRF 55310
• P. I. N. D. test
(MIL-STD 883, Method 2020)
• Tape and Reel (1,000pcs/reel) is available for an additional
charge.
Specifications subject to change without prior notice.
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QT78 (Revision H, January 2011) (ECO #10085)
3
QT78 SERIES
Q-TECH
CORPORATION
HIGH RELIABILITY MINIATURE CRYSTAL CLOCK OSCILLATORS
1.8 to 5.0Vdc - 15kHz to 150MHz
Reflow Profile
The five transition periods for the typical reflow process are:
• Preheat
• Flux activation
• Thermal equalization
• Reflow
• Cool down
TYPICAL REFLOW PROFILE FOR Sn-Pb ASSEMBLY
Embossed Tape and Reel Information For QT78
FEEDING (PULL) DIRECTION
2.0±0.1
1.75±0.1
0.3±.005
ø1.5
4.0±0.1
5.5±0.1
14.53
±0.1
ø1.5
16±0.1
10.01±0.1
26
2.0
5º MAX
TEMP(*C)
Ramp up (3ºC/s Max)
250
225
200
175
150
240º
4.80±0.1
Ramp down (6ºC/s Max)
225º min.
240º max.
60s min.
150s max.
60s min.
120s max.
ø13.0±0.5
100
75
50
25
60s min.
120s max.
120º
0
0
20
40
60
80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420
Time (s)
Dimensions are in mm. Tape is compliant to EIA-481-A.
Reel size vs. quantity:
Reel size (Diameter in mm)
Qty per reel (pcs)
250
1,000
178
330
Environmental Specifications
Q-Tech Standard Screening/QCI (MIL-PRF55310) is available for all of our QT78 Products. Q-Tech can also customize screening
and test procedures to meet your specific requirements. The QT78 product is designed and processed to exceed the following test
conditions:
Environmental Test
Temperature cycling
Constant acceleration
Seal: Fine and Gross Leak
Burn-in
Aging
Vibration sinusoidal
Shock, non operating
Thermal shock, non operating
Ambient pressure, non operating
Resistance to solder heat
Moisture resistance
Terminal strength
Resistance to solvents
Solderability
ESD Classification
Moisture Sensitivity Level
Test Conditions
MIL-STD-883, Method 1010, Cond. B
MIL-STD-883, Method 2001, Cond. A, Y1
MIL-STD-883, Method 1014, Cond. A and C
160 hours, 125°C with load
30 days, 70°C, ±1.5ppm max
MIL-STD-202, Method 204, Cond. D
MIL-STD-202, Method 213, Cond. I (See Note 1)
MIL-STD-202, Method 107, Cond. B
MIL-STD-202, 105, Cond. C, 5 minutes dwell time minimum
MIL-STD-202, Method 210, Cond. B
MIL-STD-202, Method 106
MIL-STD-202, Method 211, Cond. C
MIL-STD-202, Method 215
MIL-STD-202, Method 208
MIL-STD-883, Method 3015, Class 1 HBM 0 to 1,999V
J-STD-020, MSL=1
Note 1: Additional shock results successfully passed on 16MHz, 40MHz, and 80MHz
• Shock 850g peak, half-sine, 1 ms duration (MIL-STD-202, Method 213, Cond. D modified)
• Shock 1,500g peak, half-sine, 0.5ms duration (MIL-STD-883, Method 2002, Cond. B)
Please contact Q-Tech for higher shock requirements
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QT78 (Revision H, January 2011) (ECO #10085)
ø178±1
or
ø330±1
125
2.5
4
24.0±0.3
QT78 SERIES
Q-TECH
CORPORATION
HIGH RELIABILITY MINIATURE CRYSTAL CLOCK OSCILLATORS
1.8 to 5.0Vdc - 15kHz to 150MHz
Output Waveform (Typical)
SYMMETRY =
TH
T
x 100%
Test Circuit
Typical test circuit for CMOS logic
+ mA
4
+
Vdc
-
3
Output
Tr
VOH
Tf
Vdd
0.9xVdd
+
Power
supply
-
QT78
0.1µF
or
2
1
0.01µF
15pF
(*)
10k
Ground
0.5xVdd
0.1xVdd
VOL
TH
T
GND
Tristate Function
(*) CL includes probe and jig capacitance
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
40
30
20
10
PPM
Frequency-Temperature Curves QT78RD-70MHz 1.8Vdc
0
-10
-20
-30
-40
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100 105 110 115 120 125
Temp (ºC)
Thermal Characteristics
The heat transfer model in a hybrid package is described in
figure 1.
D/A epoxy
D/A epoxy
Die
45º
Heat
Hybrid Case
45º
Substrate
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
JA
R1
R2
R3
R4
R5
Die
D/A epoxy
Substrate
D/A epoxy
Hybrid Case
(Figure 1)
T
CA
A
T
C
JC
T
J
Die
JC
CA
(Figure 2)
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-te ch.com
QT78 (Revision H, January 2011) (ECO #10085)
5
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