QT94W and QT94P SERIES
Q-TECH
CORPORATION
HIGH-RELIABILITY LVDS or LVPECL MINIATURE CLOCK OSCILLATORS
2.5 to 3.3Vdc - 40MHz to 250MHz
Q-Tech’s surface-mount QT94W and P series oscillators
consist of a 2.5Vdc and 3.3Vdc differential PECL or
LVDS output oscillator IC and a round A high-precision
T
quartz crystal built in a rugged surface-mount ceramic
miniature package. It was designed to be replaceable and
retrofitable into the footprint of a 7 x 5mm COTS LVDS
or LVPECL oscillator.
Description
• Made in the USA
• ECCN: EAR99
• DFARS 252-225-7014 Compliant:
Electronic Component Exemption
• USML Registration # M17677
• Smallest AT round crystal package ever designed
• Broad frequency range from 40MHz to 250MHz
• Able to meet 36000G shock per ITOP 1-2-601
• Rugged 4 point mount design for high shock and
vibration
• Differential LVDS or LVPECL output
• Tri-State Output
• Hermetically sealed ceramic SMD package
• 3rd Overtone designs, no sub-harmonics
• Low phase noise, low noise coupling, low emissions
• Custom designs available
• Q-Tech does not use pure lead or pure tin in its
products
• RoHS compliant
Features
Ordering Information
Q T94LW9M - 8 5. 00 0M H z
Q T 94 LW 9 M - 250.000MHz
Output Frequency
Screening Option:
Blank = No Screening
M = Per MIL-PRF-55310, Level B
1
4
5
6
7
9
10
11
12
14
15
19
=
=
=
=
=
=
=
=
=
=
=
=
Frequency vs. Temperature Code:
± 100ppm at 0ºC to +70ºC
± 50ppm at 0ºC to +70ºC
± 25ppm at -20ºC to +70ºC
± 50ppm at -55ºC to +105ºC
± 75ppm at -55ºC to +125ºC
± 50ppm at -55ºC to +125ºC
± 100ppm at -55ºC to +125ºC
± 50ppm at -40ºC to +85ºC
± 100ppm at -40ºC to +85ºC
± 20ppm at -20ºC to +70ºC
± 25ppm at -40ºC to +85ºC
± 15ppm at 23ºC ± 1ºC
± 50ppm at -55ºC to +125ºC reference to F at 23ºC
Sample part number
Solder Dip Option:
T =
Standard
S = Solder Dip (*)
Package
Logic & Supply Voltage (**):
LW = LVDS
+3.3V
NW = LVDS
+2.5V
LP = LVPECL
+3.3V
NP = LVPECL
+2.5V
(**) For CMOS/TTL options, see ‘QT94 Series’ Data Sheet
(*) Hot Solder Dip Sn60/Pb40 per MIL-PRF 55310 is optional for an additional cost
Frequency stability vs. temperature codes may not be available in all frequencies.
•
•
•
•
•
•
•
•
Applications
SONET/SDH
Fibre channel
Gun launched munitions and systems
Applications required high data transmission
throughputs
Clock generation and distribution
Audio/Video signal processing
Broadband access
Ethernet, Gigabit Ethernet
For Non-Standard requirements,
contact Q-Tech Corporation at Sales@Q-Tech.com
Other Options Available For An Additional Charge
• P. I. N. D. test
(MIL-STD 883, Method 2020)
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-tech.co m
QPDS-0095 (Revision B, April 2019)
1
QT94W and QT94P SERIES
Q-TECH
CORPORATION
HIGH-RELIABILITY LVDS or LVPECL MINIATURE CLOCK OSCILLATORS
2.5 to 3.3Vdc - 40MHz to 250MHz
Package Outline and Pin Connections
Dimensions are in inches (mm)
0.350±.0.005
(8.89±0.13)
6
5
4
Q-TECH
P/N
FREQ.
D/C S/N
0.290±0.005
(7.37±0.13)
Pin No.
1
2
3
4
5
6
Function
TRISTA
TE
OUTN (-)
OUT (+)
VCC
GND
NC
1
2
3
0.100±.005
(2.54±0.13)
0.200±.005
(5.08±0.13)
0.130 MAX.
(3.302 MAX.)
0.190 MAX.
(4.826 MAX.)
0.018±.003
(.457±0.076)
0.315 max.
(8.00 max.)
0.130
(3.30)
0.071
(1.8)
0.27
(6.86)
0.050±0.005
(1.27±0.127)
0.400TYP.
(10.160±0.13)
0.008
(.203)
0.240
(6.1)
0.20
(5.08)
• Package material: 90% AL2O3
• Lead material: Kovar
• Lead finish: Gold Plated: 50μ ~ 80μ inches
Nickel Underplate: 100μ ~ 250μ inches
• Weight: 0.6g typ., 3.0g max.
Package Information
• Standard packaging in anti-static plastic tube (60 pcs/tube)
• Tape and Reel (800 pcs/reel) is available for an additional charge.
Packaging Options
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.co m
QPDS-0095 (Revision B, April 2019)
2
QT94W and QT94P SERIES
Q-TECH
Electrical Characteristics
CORPORATION
HIGH-RELIABILITY LVDS or LVPECL MINIATURE CLOCK OSCILLATORS
2.5 to 3.3Vdc - 40MHz to 250MHz
QT94LW
3.3Vdc ± 5%
Output frequency range (Fo)
Supply voltage (Vcc)
Parameters
(LVDS Output)
QT94NW
2.5Vdc ± 5%
40MHz — 250.00MHz (*)
-0.5 to +5.0Vdc
QT94LP
3.3Vdc ± 5%
(LVPECL Output)
QT94NP
2.5Vdc ± 5%
Frequency stability (∆F/∆T)
Storage temperature (Tsto)
Operating supply current
(Icc)
Maximum Applied Voltage (Vcc max.)
Operating temperature (Topr)
80mA max.
(45mA typ. at 125MHz)
65mA max.
-62ºC to + 150ºC
80mA max.
(45mA typ. at 100MHz)
45/55% max.
600ps max.
(Connected between Out and Comp. Out)
VOH = 1.45V typ., 1.65V max.
VOL = 1.10V typ., 0.90V min.
3.5mA typ.
100Ω
1.0ns max. (600ps typ.)
See option codes
See option codes
Symmetry
(measured at 50% output level )
Rise and Fall times
(measured between 20% to 80% Vcc)
Output Load
(Requires termination)
Start-up time (Tstup)
2ms max.
(Connected between each Output and Vcc -2Vdc)
VOH = 2.215V min.; 2.420V max.
VOL = 1.47V min.; 1.745V max.
VOH = 1.415V min.; 1.76V max.
VOL = 0.67 min.; 1.195V max.
50Ω to Vcc -2Vdc (or Thevenin equivalent)
Output voltage (V ol)
oh/V
Output Current (Ioh/Iol)
22mA typ.
Enable/Disable Tristate function
(see note 1)
Jitter
(*) Higher frequencies are available. Please contact Q-Tech for details.
Pin 1: Open or VIH ≥ 0.7*Vcc Oscillation
VIL ≤ 0.3*Vcc High Z
RMS Phase jitter (integrated 12kHz — 40MHz): 1ps max.
Total jitter: 30ps peak-to-peak
Note 1: There is a built-in OE pull-up resistor which resistance value changes in response to the input level (High or Low) to save power consumption.
Q-TECH Corporation
QPDS-0095 (Revision B, April 2019)
-
10150 W. Jefferson Boulevard, Culver City 90232
-
Tel: 310-836-7900 - Fax: 310-836-2157
-
www.q-tech .com
3
QT94W and QT94P SERIES
Q-TECH
Output Waveform (Typical)
CORPORATION
HIGH-RELIABILITY LVDS or LVPECL MINIATURE CLOCK OSCILLATORS
2.5 to 3.3Vdc - 40MHz to 250MHz
Test Circuit
Vcc
Vcc
Q
50
Vcc
250
Q
62
Vcc
6
5
QT94LP
4
3
Vcc-2V
Q
50
Vcc-2V
6
5
QT94NP
3
62
4
250
Q
Typical start-up time of an LVPECL 3.3Vdc 200MHz at -55ºC 0.833ms
STANDARD TERMINATION LVPECL
THEVENIN EQUIVALENT 2.5V LVPECL
Vcc
Vcc
130
Q
82
Vcc
Vcc
Q
100
6
5
QT94LW
Q
4
3
6
5
QT94LP
4
3
130
VOH
Q
VOL
82
Reflow Profile
TEMP(*C)
Typical plot of an LVDS 3.3Vdc 250MHz
TYPICAL REFLOW PROFILE FOR Sn-Pb ASSEMBLY
THEVENIN EQUIVALENT 3.3V LVPECL
LVDS TERMINATION
The Tristate function on pin 1 has a built-in pull-up resistor so it can be left float-
ing or tied to Vcc without deteriorating the electrical performance.
Ramp up (3ºC/s Max)
250
225
200
175
150
240º
Embossed Tape and Reel Information
Ramp down (6ºC/s Max)
225º min.
240º max.
60s min.
150s max.
FEEDING (PULL) DIRECTION
2.0±0.1
1.75±0.1
0.3±.005
ø1.5
4.0±0.1
125
100
75
50
25
0
60s min.
120s max.
5.5±0.1
9.271
±0.1
5º MAX
60s min.
120s max.
Environmental and Mechanical Specifications
0
20
40
60
80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 400 420
Time (s)
Environmental Test
Temperature cycling
Constant acceleration
Vibration sinusoidal
Shock, non operating
Solderability
Test Conditions
MIL-STD-883, Method 1010, Cond. B
MIL-STD-202, Method 204, Cond. D
MIL-STD-202, Method 213, Cond. I
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
MIL-STD-202, Method 210, Cond. C
ø1.5
4.699±0.1
16±0.1
7.747±0.1
Resistance to solder heat
Resistance to solvents
ESD Classification
Dimensions are in mm. Tape is compliant to EIA-481-A.
Reel size (Diameter in mm)
178
120º
Moisture Sensitivity Level
Qty per reel (pcs)
200
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.co m
QPDS-0095 (Revision B, April 2019)
ø178±1
or
ø330±1
Seal: Fine and Gross Leak
MIL-STD-883, Method 2001, Cond. A, Y1
26
ø13.0±0.5
2.0
MIL-STD-883, Method 1014, Cond. A and C
2.5
4
24.0±0.3
QT94W and QT94P SERIES
Q-TECH
CORPORATION
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 1 shows a typical Phase Noise/Phase jitter of a QT94LW,
3.3Vdc, 250MHz clock at offset frequencies 10Hz to 10MHz,
and phase jitter integrated over the bandwidth of 12kHz to
20MHz.
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.
Phase Noise and Phase Jitter Integration
HIGH-RELIABILITY LVDS or LVPECL MINIATURE CLOCK OSCILLATORS
2.5 to 3.3Vdc - 40MHz to 250MHz
(Figure 1)
Thermal Characteristics
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
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 heat transfer model in a hybrid package is described in figure 2.
D/A epoxy
Die
D/A epoxy
45º
Heat
Hybrid Case
45º
Substrate
R1
R2
R3
R4
R5
Die
D/A epoxy
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
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.
(Figure 2)
Substrate
D/A epoxy
Hybrid Case
T
CA
A
T
C
JC
T
J
Die
JC
CA
JA
(Figure 3)
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-tech.co m
QPDS-0095 (Revision B, April 2019)
5
Test/Measurement
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