Table of Contents
Q-TECH
CORPORATION
Specification Control Drawing
Scope
Scope
Part Number
Applicable Documents
Specifications and Standards
Requirements
General Requirements
Approved Manufacturer
Design and Construction
Outline Dimensions and Terminal Connections
Package Body and Lead Finish
Active Devices
Performance Requirements
Maximum Ratings
Electrical Performance Characteristics and Limits
Delta Limits
Total Dose Radiation Limits
QT625L XO DETAIL SPECIFICATION
Quality Assurance Provisions
General
Screening Tests
Quality Conformance Inspection
Packaging
Preservation, Packaging and Packing
Notes
Ordering Information
Part Number
Table I. Stability/Temperature Options
Source of Supply
Approved Manufacturer
Table II. Maximum Ratings
Table III. Electrical Performance Characteristics
Figure 1. Package Dimensions and Terminal Connections
Q-T ECH Co rpo rat ion - 1 015 0 W. J efferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-t e c h.c om
QT625L XO Detail Specification (Revision F, June 2011)
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REVISIONS
Initial release-
tr/tf spec limits to better reflect output buffer drive capability.A
temperature stability definitions, Table I. B
C
Update paragraph 3.3.3.1. Update Table III and notes to Figure 1.F
aragraph 3.3.3 for clarification of microcircuit technology, SEL ratin
e to microcircuit manufacturer, paragraph 3.3.3D
2-27-07Modif
3-19-07Clarif
7/17/07Modif
5/08/09Correction to Figure 1.E
THIS DOCUMENT IS CONSIDERED PROPRIETARY TO Q-TECH CORPORATION
DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH CORPORATION APPROVAL
APPROVEDDATEDESCRIPTIONREVISION
E.Jackson8/08/08Chan
C.Hoo
SPECIFICATION CONTROL DRAWING
C.Hooper
UNLESS OTHERWISE
SPECIFIED DIMENSIONS ARE
IN INCHES.
TOLERANCES:
3 PLACE DECIMAL = .005
2 PLACE DECIMAL = .02
1 PLACE DECIMAL = .1
FRACTIONS = ± 1/16
ANGLES = 2 DEGREES
CHECKED BY
M.Dao
RELEASED BY
P.Steinblums
DATEPREPARED BY
DATE
DATE
Q-TECH CORPORATION
10150 W. JEFFERSON BLVD.
CULVER CITY, CA. 90232-3510
HYBRID CRYSTAL OSCILLATOR +3.3V,
CLASS S, DETAIL SPECIFICATION FOR
DRAWING NO.
QT625L
SCALE:
CAGE CODESIZE
SHEET 1 of 5
NONE
51774A
REV.
F
THIS DOCUMENT IS CONSIDERED PROPRIETARY TO Q-TECH CORPORATION
DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH CORPORATION APPROVAL
1 SCOPE
1.1 Scope.
This specification establishes the detail requirements for hybrid, hermetically sealed, crystal
oscillators for use in space flight missions.
1.2 Part number.
The part number shall be as specified in Table I herein.
2 APPLICABLE DOCUMENTS
2.1 Specifications and standards.
Unless otherwise specified, the following documents shall be
applicable to this specification to the extent specified herein.
SPECIFICATIONS
401-0298-001
Hybrid Crystal Oscillators, Class S, General Specification For
3 REQUIREMENTS
3.1 General requirements.
The individual item requirements shall be as specified in the General
Specification with the exceptions, modifications, and additions specified herein.
3.2 Approved manufacturer.
Hybrid crystal oscillators shall be supplied from the manufacturer specified
in paragraph 7.1 herein.
3.3 Design and construction.
3.3.1. Outline dimensions and terminal connections.
be as shown in Figure 1 herein.
3.3.2. Package body and lead finish.
The package body and lead finish shall be gold in accordance with
MIL-PRF-38534.
The outline dimensions and terminal connections shall
3.3.3. Active Devices.
The microcircuit used in this part shall use CMOS technology and shall be from a
wafer proven to be radiation tolerant to 100 kRad (Si) total ionizing dose.
3.3.3.1 CMOS microcircuit usage.
For frequencies below 12 MHZ the CMOS output microcircuit shall be
54AC191, see DSCC SMD 5962-89749. For frequencies greater than or equal to 12 MHZ, the
CMOS microcircuit shall be 54AC00, see DSCC SMD 5962-87549. These microcircuits are specified
to be single event latchup free for LET up to 93 MeV-cm
the manufacturer shall be ST Microelectronics Corporation. For output frequencies greater 70 MHZ,
the manufacturer shall be National Semiconductor Corporation.
3.4 Performance requirements.
3.4.1. Maximum ratings.
The maximum ratings shall be as specified in Table II herein.
3.4.2. Electrical performance characteristics and limits.
shall be in accordance with Table III herein.
3.4.3. Delta limits.
Except for frequency aging (refer to Table III), delta limits shall be in accordance with the
General Specification.
3.4.4. Total dose radiation limits.
Hybrid crystal oscillators supplied in accordance with this specification
shall be capable of meeting the performance requirements after being exposed to 100 krad total dose
radiation levels.
2
/mg. For output frequencies up to 70 MHz,
The electrical performance requirements and limits
Q-Tech Corporation
10150 W. Jefferson Blvd.
Culver City, CA. 90232
Specification number: QT625L rev. F
Sheet 2 of 5
THIS DOCUMENT IS CONSIDERED PROPRIETARY TO Q-TECH CORPORATION
DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH CORPORATION APPROVAL
4 QUALITY ASSURANCE PROVISIONS
4.1 General.
The quality assurance provisions shall be in accordance with the General Specification with
the exceptions, modifications, and additions specified herein.
4.2 Screening tests.
4.3 Quality
Conformance Inspection. Quality Conformance Inspection shall be in accordance with the
The screening tests shall be in accordance with the General Specification.
General Specification and shall be required only when specified by the purchase order.
5 PACKAGING
5.1 Preservation, packaging and packing.
accordance with the General specification.
6 NOTES
6.1 Notes.
6.2 Ordering information.
The notes of the General Specification are applicable to this drawing.
The procuring activity shall advise Q-Tech Corporation at the time of Request
for Quotation if quality conformance inspection is to be required.
6.3 Part number
.
Model #
Supply voltage: L: + 3.3 volts
Temp stability - see Table I
Hybrid crystal oscillators shall be prepared for delivery in
QT625 L B M - 16.000000 MHZ
Screening: E: engineering model; M: flight model
Frequency (8 digits)
TABLE I. STABILITY / TEMPERATURE OPTIONS *
A
B
C
D
E
F
G
H *
* Frequency/Temperature stability (tolerance) shall be referenced to the specified nominal output
frequency, except for temp code H, in which case it is with reference to room temperature (T = 25 ±
2 °C). For temp code H, room temperature tolerance shall be ±10 PPM.
7 SOURCE OF SUPPLY
7.1 Approved manufacturer.
Q-Tech Corporation
10150 W. Jefferson Blvd.
Culver City, Ca. 90232 U.S.A.
TEMP STABILITYOPTION
± 65 PPM, - 55 °C TO + 125 °C
± 50 PPM, - 55 °C TO + 125 °C
± 50 PPM, - 55 °C TO + 105 °C
± 40 PPM, - 55 °C TO + 105 °C
± 30 PPM, - 40 °C TO + 85 °C
± 50 PPM, - 20 °C TO + 70 °C
± 25 PPM, - 20 °C TO + 70 °C
± 5 PPM, 0 °C TO + 55 °C
Q-Tech Corporation
10150 W. Jefferson Blvd.
Culver City, CA. 90232
Specification number: QT625L rev. F
Sheet 3 of 5
θ
THIS DOCUMENT IS CONSIDERED PROPRIETARY TO Q-TECH CORPORATION
DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH CORPORATION APPROVAL
Supply voltage
Operating temperature
Package thermal resistance
TABLE Ill. ELECTRICAL PERFORMANCE CHARACTERISTICS
INPUT CURRENT
Measured without load at 3.63 Vdc
RISE / FALL TIME
@ worst case, Vcc = 3.0, T = 125 °C
TABLE II. MAXIMUM RATINGS
CC
C
jc
TEST CONDITIONS 2/, 3/ELECTRICAL PARAMETER
Output frequency:
VCC x 0.9OUTPUT VOLTAGE - LOGIC "1"
Output frequency:
Up to 70 MHZ
> 70 MHZ - 125 MHZ
> 125 MHZ
70 °C ± 3 °CFREQUENCY AGING (AFTER 30 DAYS)
70 °C ± 3 °CFREQUENCY AGING (AFTER 1 YEAR)
UnitsMaxMinSymbolParameter
Volts70V
ºC125-55T
ºC150-65TstgStorage temperature
ºC/seconds250/10Lead solder temperature/time
ºC/W50
NOTESLIMITS
UNITSMAX.NOM.MIN.
MHz1500.75FREQUENCY RANGE
See Table IFREQUENCY/TEMPERATURE STABILITY
Vdc3.63.33SUPPLY VOLTAGE
mA12Less than 12 MHZ
mA1512 MHZ - 59.99 MHZ
mA2060 MHZ - 99.99 MHZ
mA30100 MHZ - 150 MHZ
CMOSLOAD
x 0.1OUTPUT VOLTAGE - LOGIC "0"
CC
N/ASquarewaveOUTPUT WAVEFORM
%60/40 or betterDUTY CYCLE
ppm±1.5
ppm±10
ms10STARTUP TIME
1/, 4/
6/5/VdcV
5/Vdc
6/nS5
6/nS3
6/nS2.5
NOTES
1. The limit for frequency/temperature stability (tolerance) shall be referenced to the specified nominal output frequency, except
for temp code H as noted above.
2. Unless otherwise specified, the limits are over the full operating temperature range and under specified load conditions.
3. Unless otherwise specified, all measurements are in accordance with MIL-PRF-55310.
4. Up to 30 days after shipment.
5. Voltage values are with respect to network ground terminal.
6. A standard CMOS load of 10 kOhm || 15 pF shall be used, except for frequencies greater than 125 MHZ, where the load
shall be 5 pF. See MIL-PRF-55310/26 for CMOS waveform measurement definitions.
Q-Tech Corporation
10150 W. Jefferson Blvd.
Culver City, CA. 90232
Specification number: QT625L rev. F
Sheet 4 of 5
THIS DOCUMENT IS CONSIDERED PROPRIETARY TO Q-TECH CORPORATION
DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH CORPORATION APPROVAL
NOTES:
1. Dimensions are in inches.
2. Lead numbers are for reference only and are not marked on the unit.
3. All pins with function NC may not be connected as external tie or connections, except they may
be tied to Ground.
* Additional optional Ground connections may be connected to circuit ground plane for
minimum overshoot/ringing when driving capacitive loads.
FIGURE 1. PACKAGE DIMENSIONS AND TERMINAL CONNECTIONS
Q-Tech Corporation
10150 W. Jefferson Blvd.
Culver City, CA. 90232
TERMINAL CONNECTIONS
13N/C3
CONNECTIONTERMINAL NO.CONNECTIONTERMINAL NO.
OUTPUT11N/C1
GND/CASE *12N/C2
V
CC
N/C14N/C4
GND/CASE *15N/C5
N/C16N/C6
N/C17N/C7
N/C18N/C8
N/C19N/C9
N/C20GND/CASE10
Specification number: QT625L rev. F
Sheet 5 of 5
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