FLAT PACK
Q-TECH
CORPORATION
CRYSTAL CLOCK OSCILLATORS
-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz
Description
Q-Tech’s flat pack 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 an all metal flat
package.
Features
• Made in the USA
• ECCN: EAR99
• DFARS 252-225-7014 Compliant:
Electronic Component Exemption
• USML Registration # M17677
• Wide frequency range from 0.12Hz to 200MHz
• Available as QPL MIL-PRF-55310/21 (TTL)
QT24 only
• Choice of flat packs and pin outs
• Choice of supply voltages
• Choice of output logic options
• AT-Cut crystal
• All metal hermetically sealed package
• Tight or custom symmetry available
• Capacitive load drive capability (Z output)
• Low height
• External tuning capacitor option
• Fundamental and third overtone designs
• Tristate function option D
• Three-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
Ordering Information
Model #
C
AC
HC
T
L
N
R
E
EH
EF
PE
LP
Z
=
=
=
=
=
=
=
=
=
=
=
=
=
QTXX — XX — D — XX — M — 20.000MHz
Tristate Option D
(Left blank if no Tristate)
CMOS +5V to +15V *
ACMOS +5V
HCMOS +5V
TTL +5V
LVHCMOS +3.3V
LVHCMOS +2.5V
LVHCMOS +1.8V
10K ECL -5.2V
10KH ECL -5.2V
100K/300K ECL -4.5V
PECL +5V
PECL +3.3V
Z output
Screened to
MIL-PRF-55310,level B
(Left blank if no screening)
1
4
5
6
9
10
11
12
=
=
=
=
=
=
=
=
Output frequency
For frequency stability vs. temperature options not listed herein, request a custom
part number.
(*) Please specify supply voltage when ordering CMOS
± 100ppm at
0ºC to +70ºC
± 50ppm at
0ºC to +70ºC
± 25ppm at -20ºC to +70ºC
± 50ppm at -55ºC to +105ºC
± 50ppm at -55ºC to +125ºC
± 100ppm at -55ºC to +125ºC
± 50ppm at -40ºC to +85ºC
± 100ppm at -40ºC to +85ºC
Applications
• Designed to meet today’s requirements for all
voltage applications
• Wide military clock applications
• Industrial controls
• Microcontroller driver
• Package material (Header and Leads): Kovar
• Lead finish:
Gold Plated – 50µ ~ 80µ inches
Nickel Underplate – 100µ ~ 250µ inches
• Cover: Kovar, Gold Plated – 50µ ~ 100µ inches
Nickel Underplate – 70µ ~ 90µ inches
• Package to lid attachment: Seam weld
Package Information
For Non-Standard requirements, contact Q-Tech Corporation at
Sales@Q-Tech.com
Packaging Options
•
•
•
•
• Standard packaging in a locked anti-static cardboard
Other Options Available For An Additional Charge
Lead forming available on all packages. Please contact for details.
Solder Dip Sn/Pb 60/40%
P. I. N. D. test
Lead trimming
All flat pack packages are available in surface mount form.
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-t ec h.com
Flat Pack (Revision C, October 2008) (ECO# 9454)
1
FLAT PACK
Electrical Characteristics
Output freq. range QT21, 24, 25
(Fo)
QT22, 26, 28
Supply voltage (Vdd)
Freq. stability (∆F/∆T)
Storage temp. (Tsto)
CORPORATION
Q-TECH
CRYSTAL CLOCK OSCILLATORS
-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz
C
AC
HC
T
L (*)
ECL / PECL (**)
1MHz — 200MHz
8MHz — 85MHz
-5.2Vdc ± 5% (10K / 10KHECL)
5Vdc ± 5% (PECL)
3.3Vdc ± 5% (LVPECL)
Parameters
500Hz — 15MHz
500Hz — 15MHz
500Hz — 85MHz
500Hz — 125MHz
0.12Hz — 125MHz
500Hz — 85MHz
5.0Vdc ± 10%
0.12Hz — 125MHz
500Hz — 85MHz
0.12Hz — 160MHz
500Hz — 85MHz
3.3Vdc ± 10%
5V ~ 15Vdc ± 10%
Operating temp. (Topr)
F and Vdd dependent
3 mA max. at 5V up to 5MHz
25 mA max. at 15V up to 15MHz
20 mA max. -
25 mA max. -
35 mA max. -
45 mA max. -
60 mA max. -
0.12Hz ~
16MHz ~
40MHz ~
60MHz ~
85MHz ~
<
<
<
<
See Option codes
16MHz
40MHz
60MHz
85MHz
125MHz
-62ºC to + 125ºC
See Option codes
Operating supply current
(Idd) (No Load)
Symmetry
(50% of ouput waveform or
1.4Vdc for TTL)
Rise and Fall times
(with typical load)
Output Load
45/55% max. Fo < 4MHz
40/60% max. Fo ≥ 4MHz
30ns max.
(Measured from 10% to 90%)
15pF // 10kΩ
0.9 x Vdd min.; 0.1 x Vdd max.
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)
10TTL Fo < 20MHz
6TTL Fo ≥ 20MHz
45/55% max. Fo < 12MHz
40/60% max. Fo ≥ 12MHz
3 mA max. - 0.12Hz ~ < 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 ~ 160MHz
45 mA max. - 8MHz ~ < 125MHz
75 mA max. - 125MHz ~ 200MHz
3.5ns max. Fo < 125MHz
3ns max. Fo 125MHz ~ 200MHz
15pF // 10kΩ
0.9 x Vdd min.; 0.1 x Vdd max.
± 4mA .
VIH ≥ 0.7 x Vdd Oscillation;
VIL ≤ 0.3 x Vdd High Impedance
15ps typ. - < 40MHz
8ps typ. - ≥ 40MHz
(Measured from 20% to 80%)
50Ω to -2V (10K / 10KH)
50Ω to Vcc -2V (P & LP)
45/55% max. Fo < 12MHz
40/60% max. Fo ≥ 12MHz
Start-up time (Tstup)
Output voltage (Voh/Vol)
Output Current (Ioh/Iol)
Enable/Disable
Tristate function
± 1mA typ. at 5V
± 6.8mA typ. at 15V
Call for details
10ms max.
2.4V min.; 0.4V max.
-1.6mA / TTL
+40µA / TTL
± 24mA
±8 mA
VIH ≥ 2.2V Oscillation;
VIL ≤ 0.8V High Impedance
8ps typ. - < 40MHz
5ps typ. - ≥ 40MHz
-1.15V min; -1.54V max. (E)
4V min.; 3.37V max. (PE)
2.27V min.; 1.68V max. (LP)
-50mA
Call for details
Jitter RMS 1σ (at 25ºC)
Aging (at 70ºC)
(*) Available in 2.5Vdc (N) or 1.8Vdc (R)
(**) Please contact Q-Tech for details on 100KECL logic (EF)
Z Output logic can drive up to 200 pF load with typical 6ns rise & fall times (tr, tf)
Q-TECH Corporation
-
± 5ppm max. first year / ± 2ppm typ. per year thereafter
Integrated phase jitter
12kHz - 20MHz 1ps typ.
10150 W. Jefferson Boulevard, Culver City 90232
-
Tel: 310-836-7900 - Fax: 310-836-2157
-
www.q-t ec h.c om
Flat Pack (Revision C, October 2008) (ECO# 9454)
2
FLAT PACK
Q-TECH
Package Configuration Versus Pin Connections
QT21
Q-TECH
P/N
FREQ.
D/C S/N
CORPORATION
CRYSTAL CLOCK OSCILLATORS
-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz
A
QT22
B
QT24
Q-TECH
P/N
FREQ.
D/C S/N
C
QT25
Q-TECH
P/N
FREQ.
D/C S/N
D
Q-TECH
P/N
FREQ.
D/C S/N
.140
(3.56)
.120
(3.05)
MAX.
.120
(3.05)
.150
MAX.
(3.81)
MAX.
.060/.035
.085/.070
(2.16/1.78)
.010
(.254)
.010
(.254)
.060/.045
(1.52/1.14)
.010
(.254)
.060/.045
(1.52/1.14)
.010
(.254)
(1.52/.889)
.625
.050
(1.27)
10
(15.88)
SQ.
.375
.050
(1.27)
11
.625
.050
(1.27)
(15.88)
SQ.
.050
(1.27)
11
.625
(15.88)
SQ.
(9.53)
8
9
.500
(12.70)
10
10
11
.450
(11.43)
.350
(8.89)
1
.015
(.381)
.500
MIN.
.450
(11.43)
.450
(11.43)
16
1
20
1
.015
(.381)
20
.500
1
.015
.500
MIN.
20
.500
.015
(.381)
(12.70)
(12.70)
(.381)
MIN.
MIN.
(12.70)
(12.70)
QT26
Q-TECH
E
QT28
Equivalent
E/D MIL-PRF-55310
Configuration
12
12
12
11
6
11
N/A
N/A
N/A
N/A
N/A
F
P/N
FREQ.
D/C S/N
Q-TECH
P/N
FREQ.
D/C S/N
.160
(4.06)
MAX.
.120
(3.05)
MAX.
QT21
QT22
.010
(.254)
Output
QT # Conf Vcc GND Case
(*)
A
B
C
E
F
13
13
13
14
8
8
10
10
10
7
9
9
10
10
10
7
9
9
10
11
11
10
8
11
.070
(1.78)
.590
.010
(.254)
.05
MIN.
(1.27)
.05
MIN.
(1.27)
QT24
QT25
QT26
QT28
D
/21 = QT24T
.375
.100
(2.54)
(14.99)
.050
(1.27)
8
(9.53)
9
7
8
.790
.600
(15.24)
(20.07)
.350
(8.89)
1
16
.500
(12.70)
.015
(.381)
.15
(3.81)
(*) ECL / PECL complimentary output available on pin 12
1
.015
(.381)
14
(except QT22, 26, & 28) with a Q-Tech custom part number
.500
(12.70)
MIN.
Dimensions are in inches (mm)
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-t ec h.com
Flat Pack (Revision C, October 2008) (ECO# 9454)
3
FLAT PACK
Q-TECH
Test Circuit
CORPORATION
Output Waveform (Typical)
SYMMETRY =
Typical test circuit for ECL logic.
CRYSTAL CLOCK OSCILLATORS
-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz
TH
T
x 100%
Tr
mA
+
POWER
SUPPLY
-
+
Vdc
-
0.1µF
or
0.01µF
-2Vdc
-4.5V
or
-5.2V
GND
OUT
Vee
50Ω
OUT
Tf
Vdd
0.9xVdd
VOH
0.5xVdd
0.1xVdd
VOL
TH
GND
Typical test circuit for TTL logic.
Vdd
RL
Startup Time
Oscilloscope
54616B Agilent
Variable Ramp
T
TYPICAL SET-UP FOR START-UP TIME
+
-
+
Vdc
-
0.1µF
or
0.01µF
mA
+
POWER
SUPPLY
-
Vdd OUT
OUT
E/D GND
CL
Rs
DUT
LOAD
6 TTL
10 TTL
CL(*)
12pF
20pF
RL
430Ω
270Ω
RS
10kΩ
6kΩ
Ts
Start-up box
(*) CL inclides the loading effect of the oscilloscope probe.
Typical test circuit for CMOS logic
Supply Current
TYPICAL SUPPLY CURRENT ICC (mA) AT 3.3Vdc & 5.0Vdc CMOS Logic NO LOAD
+ mA
+
Power
supply
-
+
Vdc
Vdd Out
0.1µF
or
E/D GND
0.01µF
Output
45
40
35
30
Icc (mA)
-
15pF
(*)
10k
Ground
25
20
15
10
Tristate Function
5
0
0.5 2
8
16 24 27 32 36 40 48 50 55 65 70 75 85 100 125 133 150 160
Freq(MHz)
Icc 3.3V
Icc 5V
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.
(*) CL includes probe and jig capacitance
Frequency vs. Temperature Curve
50
40
30
Frequency Stability (PPM)
20
10
0
-10
-20
-30
-40
-50
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
2_5
35
3_5
40
4_5
45
5_5
50
55
60
65
70
75
80
85
90
95
100 105 110 115 120 125
Temperature (°C)
FREQUENCY STABILITY VERSUS TEMPERATURE QT24T- 48.000MHz
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-t ec h.com
Flat Pack (Revision C, October 2008) (ECO# 9454)
4
FLAT PACK
Q-TECH
Thermal Characteristics
CORPORATION
CRYSTAL CLOCK OSCILLATORS
-5.2 to -4.5Vdc & 1.8 to 15Vdc - 0.12Hz to 200MHz
The heat transfer model in a hybrid package is described in
figure 1.
D/A epoxy
Die
D/A epoxy
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
R1
R2
R3
R4
R5
Die
D/A epoxy
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.
(Figure 1)
Substrate
D/A epoxy
Hybrid Case
T
CA
• 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
A
T
C
JC
T
J
Die
JC
CA
JA
(Figure 2)
Environmental Specifications
Q-Tech Standard Screening/QCI (MIL-PRF55310) is available for all of our Flat Packs. Q-Tech can also customize screening and test
procedures to meet your specific requirements. The Flat Packs are designed and processed to exceed the following test conditions:
Environmental Test
Temperature cycling
Constant acceleration
Seal Fine 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
Test Conditions
MIL-STD-883, Method 1010, Cond. B
MIL-STD-883, Method 2001, Cond. A, Y1
MIL-STD-883, Method 1014, Cond. A
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
MIL-STD-202, Method 107, Cond. B
MIL-STD-202, 105, Cond. C, 5 minutes dwell time minimum
MIL-STD-202, Method 210, Cond. C
MIL-STD-202, Method 106
MIL-STD-202, Method 211, Cond. C
MIL-STD-202, Method 215
MIL-STD-202, Method 208
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-t ec h.com
Flat Pack (Revision C, October 2008) (ECO# 9454)
5
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