Q-Tech QT812 User Manual

REVISIONS

REVISION DESCRIPTION APPROVED DATE

A Updated part numbers Luis Vargas 1/9/09

B

C

Edited Part Numbers Luis Vargas 6/21/2009
Edited Luis Vargas 12/2/2010
Changed par. 3.1.1 split supply and load variation from frequency

D

stability Vs. temperature characteristics, phase noise limits @10Hz
and 100 Hz) Add par. 3.4.2 Logic microcircuits and Radiation
(ECO#

10550)

C. Albright 4/26/12

CONSULT FACTORY FOR CURRENT REVISION

SPECIFICATION CONTROL DRAWING

UNLESS OTHERWISE

PREPARED BY:

SPECIFIED, DIMENSIONS

ARE IN INCHES.

TOLERANCES:

Luis Vargas

CHECKED BY:

3 PLACE DECIMAL = .005

2 PLACE DECIMAL = .02

1 PLACE DECIMAL = .1

B. Remtulla

FRACTIONS = ± 1/16

ANGLES = 2 DEGREES

RELEASED BY:

APPROVED BY:

P. Steinblums 4/26/12

C. Albright

DATE

4/25/12

LOW PROFILE 24 PIN Flat-Pack HYBRID CRYSTAL

DATE

4/26/12

DATE

4/26/12

SCALE

NONE

Q-TECH CORPORATION

10150 W. JEFFERSON BLVD.

CULVER CITY, CA 90232-3510

OSCILLATOR, TCXO, CLASS S,

Standard Design For HCMOS up to 90MHz

DRAWING NO.:

QT811 and QT812

Square-Wave

SIZE

A

CAGE CODE

51774

SHEET 1 of 10

ITAR-CONTROLLED Q-TECH PROPRIETARY DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH APPROVAL

REVISION

D

1.0 SCOPE

24 PIN Flat-Pack

This specification establishes the detail requirements for low profile hybrid, hermetically sealed,
HCMOS output temperature compensated crystal oscillators (TCXO) for use in space flight missions

2.0 APPLICABLE DOCUMENTS

The following documents of the latest issue form a part of this drawing to the extent specified herein.

2.1 Specifications and Standards

MIL-S-19500 Semiconductor Devices, General Specification For

MIL-PRF-55310 Crystal Oscillators, General Specification For

MIL-PRF-38535 Integrated Circuits, (Microcircuits) Manufacturing, General Specification For

MIL-PRF-38534 Hybrid Microcircuits, General Specification For

MIL-STD-202 Test Methods for Electronic and Electrical Component Parts

MIL-STD-883 Test Methods and Procedures for Microelectronics

MIL-STD-1686 Electrostatic Discharge Control Program for Protection of Electrical and Electronics Parts,

Assemblies and Equipment.

SPECIFICATIONS

MILITARY

STANDARDS

MILITARY

2.2 Conflicting Requirements

In the event of conflict between requirements of this specification and other requirements of the

applicable detail drawing, the precedence in which requirements shall govern, in descending order, is
as follows:

a) Applicable Customer purchase order.
b) Applicable detail drawing.
c) This specification.
d) Other specifications or standards referenced in 2.1 herein.

2.3 Customer Purchase Order Special Requirements

Additional special requirements shall be specified in the applicable Customer purchase order when

additional requirements or modifications specified herein are needed for compliance to special

program or product line requirements.

3.0 PERFORMANCE REQUIREMENTS

3.1 General Definition

The TCXO is a high reliability signal generator that provides a square-wave output. The TCXO has

been designed to operate in a spaceflight environment with an expected lifetime in excess of 15 years.
Lifetime is defined as the sum of operational and storage environments.

Q-TECH Corporation

10150 W. Jefferson Blvd.
Culver City, CA 90232

SIZE

A

CAGE NO.

51774

QT811 and QT812 Square-Wave

24 pin DDIP

Sheet 2 of 10

REV.

D

ITAR-CONTROLLED Q-TECH PROPRIETARY DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH APPROVAL

24 PIN Flat-Pack

3.1.1 Electrical Characteristics

PARAMETER SYMBOL CONDITIONS VALUE UNIT

Frequency Nom. fo - 3. to 90 MHz
Supply voltage, Nom. Vs Vs±5%

Input Current, max. Is
Freq. stability vs. Operating

temperature
Electrical Frequency
Adjustment Min.
(when specified)

Freq. stability vs. ±5 %
Input Voltage Variation

Freq. stability vs. ±5 %
Load Variation

Aging Max
Freq. stability vs. Vacuum
Short term stability
RF Output

Output VOH / VOL load=15pF, Vcc=nom.

Δf/fc (Ta)

Δf/fo

(ΔVcc)

Δf/fc (Vs) Ta=+25°C

Δf/fc

(Load)

Δf/fo
Δf/fo

Δf/fc(Δt) Δt=1sec. (Allan Deviation)

Vs, nom. / Ta=+25°C

Contact factory for other options
available

±5 PPM Two options:

1) via an external select-at-test

2) Via External tuning voltage

Vs, nom. / Ta=+25°C 0.3 ppm

over 10 year (first year ≤ 1 ppm) ±5.0 ppm
Met by design, not tested

Contact factory for other options
available

resistor connected from Pin 1
to Ground

See part number
generation table

50 mA

See part number
generation table

±5.0 ppm

±1.2 ppm

±0.2

0.001 ppm

30 to 70

3rd

0.9•Vcc / 0.1•Vcc

70.1 to
90

rd

3

X

V

ppm

ppm

MHz

V

Duty cycle DC

Rise- / fall time tr / tf 20%~80% Vout, 80%~20% Vout .5…7 (see note A) nSec
Load 15 pF
Phase noise @ freq. offset

A:

Supply Current, rise & fall time are frequency dependent

£ (Δf)
£ (Δf)
£ (Δf)
£ (Δf)
£ (Δf)

load=15pF/ @50%Vcc, Ta=+25°C

Δf=10Hz
Δf=100Hz
Δf=1kHz
Δf=10kHz
Δf=100kHz

See part number
generation table

-70

-100

-130

-140

-140

70.1 to 90
MHZ

Contact

factory for

other

options

available

%

dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz

3.2 Absolute Maximum Rating

Supply Voltage 0 to +6.0 VDC
DC Input Current 50 mA maximum

Storage Temperature range -55°C to +125°C

Lead Temperature (Soldering, 10 seconds) 300°C

CHARACTERISTICS MAXIMUM RATINGS REMARKS

Note 1
Note 1

Note 1

Note 1

Notes: 1 – Without irreversible damages

ITAR-CONTROLLED Q-TECH PROPRIETARY DO NOT COPY OR DISTRIBUTE WITHOUT Q-TECH APPROVAL

Q-TECH Corporation

10150 W. Jefferson Blvd.
Culver City, CA 90232

SIZE

A

CAGE NO.

51774

QT811 and QT812 Square-Wave

24 pin DDIP

Sheet 3 of 10

REV.

D